All (in this database) Fish list (Scientific names): Part TH
A
AF
AM
AO
AS
AV
B
BD
BJ
BR
BT
C
CE
CI
CR
CW
D
DH
DR
E
EN
EV
F
FL
FS
G
GJ
GU
H
HG
HW
I
IO
J
K
KR
L
LB
LH
LT
M
MB
MF
MK
MV
N
NG
NJ
O
OH
OS
P
PE
PF
PN
PS
PY
Q
R
RH
RP
S
SE
SI
SO
SQ
SU
T
TH
TS
U
V
VI
W
X
Y
Z
- thackwrayi Smith, 1967 (Parabothus), see Laeops pectoralis
- thaeocoryla Parin & Borodulina, 1990 (Polymetme)
- Thaerodontis McClelland, 1844 (Muraenidae), see Gymnothorax
- thai Fowler, 1934 (Nemacheilus), see Schistura nicholsi
- thai Fowler, 1937 (Phenacostethus), see Phenacostethus smithi
- thai Fowler, 1937 (Thynnichthyina), see Thynnichthys thynnoides
- thai Fowler, 1937 (Thynnichthys), see Thynnichthys thynnoides
- thai Fowler, 1944 (Crossocheilus), see Henicorhynchus siamensis
- Thaigobiella Smith, 1931 (Gobiinae), see Brachygobius
- thailandae Rainboth, 1996 (Anodontostoma), see Anodontostoma thailandiae
- thailandiae Wongratana, 1983 (Anodontostoma)
- thalassa Nielsen & Bertelsen, 1985 (Saccopharynx)
- Thalasseleotris Hoese & Larson, 1987 (Eleotridae)
- thalassia Mìller & Henle, 1841 (Trygon), see Dasyatis centroura
- thalassina (Netuma)
- thalassinum Lee et al., 1980 (Etheostoma)
- thalassinus Springer, 1967 (Entomacrodus)
- thalassinus Lee et al., 1980 (Microgobius)
- thalassinus (Arius)
- Thalassinus Moreau, 1881 (Carcharhinidae), see Prionace
- thalassinus Cope, 1870 (Ptychostomus), see Moxostoma anisurum
- thalassinus Cope, 1883 (Myloleucus), see Gila bicolor
- thalassinus Dor, 1984 (Arius), see Netuma thalassina
- thalassinus Jordan & Brayton, 1878 (Nothonotus), see Etheostoma thalassinum
- thalassinus Jordan & Gilbert, 1883 (Gobius), see Microgobius thalassinus
- thalassinus Jordan & Gilbert, 1884 (Doratonotus), see Doratonotus megalepis
- thalassinus Jordan & Seale, 1906 (Alticus), see Entomacrodus thalassinus
- thalassinus Rìppell, 1837 (Bagrus), see Netuma thalassina
- thalassinus Valenciennes, 1835 (Galeus), see Prionace glauca
- thalassinus authors (Netuma), see Netuma thalassina
- Thalassobathia Cohen, 1963 (Bythitinae)
- thalassobathyalis Andriashev, 1982 (Paraliparis)
- Thalassogobius Herre, 1953 (Gobiinae), see Fusigobius
- Thalassoma Swainson, 1839 (Corinae)
- Thalassophryne Gìnther, 1861 (Batrachoididae)
- thalassopterus Jenkins, 1903 (Gymnothorax), see Gymnothorax flavimarginatus
- Thalassorhinus Valenciennes in Bonaparte, 1838 (Carcharhinidae), see Prionace
- Thalassosteus Jordan, Evermann & Tanaka, 1927 (Belonidae), see Tylosurus
- Thalassothia Berg, 1895 (Batrachoididae)
- Thaleichthys Girard, 1858 (Osmerinae)
- thaleichthys Jordan & Evermann (ex Jonston), 1896 (Spirinchus)
- thaleichthys Ayres, 1860 (Osmerus), see Spirinchus thaleichthys
- Thalliurus Swainson, 1839 (Cheilininae), see Cheilinus
- thamalakanensis Fowler, 1935 (Barbus)
- thamalakanensis Fowler, 1935 (Synodontis)
- thamalakanensis Fowler, 1935 (Alestes), see Brycinus lateralis
- thamicola Kottelat, 1988 (Homaloptera)
- Thamnaconus Smith, 1949 (Monacanthidae)
- thapsinogen (Maylandia)
- thapsinogen Stauffer, Bowers, Kellogg & McKaye, 1997 (Metriaclima), see Maylandia thapsinogen
- Tharbacus Smith, 1952 (Batrachoididae), see Chatrabus
- thaumasium Allen & Robertson, 1994 (Pseudogramma)
- thaumasium Gilbert, 1900 (Rhegma), see Pseudogramma thaumasium
- Thaumastomias Alcock, 1890 (Malacosteinae), see Photostomias
- Thaumatichthyidae (Lophiiformes)
- Thaumatichthys Smith & Radcliffe, 1912 (Thaumatichthyidae)
- thavili (Smith, 1945) (Lobocheilus)
- thavili Smith, 1945 (Lobocheilos), see Lobocheilus thavili
- thayeri Eigenmann, 1908 (Gymnocorymbus)
- thayeri (Aequidens)
- thayeri Borodin, 1929 (Leporinus), see Leporinus mormyrops
- thayeri Kullander, 1986 (Laetacara), see Aequidens thayeri
- thayeri Steindachner, 1875 (Acara), see Aequidens thayeri
- thayeri Steindachner, 1875 (Geophagus), see Acarichthys heckelii
- Thayeria Eigenmann, 1908 (Tetragonopterinae)
- thayeria G©ry, 1977 (Hemiodopsis)
- thayeria Bæhlke, 1955 (Hemiodus), see Hemiodopsis thayeria
- thazard Lindberg & Krasyukova, 1975 (Auxis)
- thazard Lacep¨de, 1800 (Scomber), see Auxis thazard
- theagenes Whitley, 1945 (Caesioscorpis)
- theageri Malabarba, 1989 (Jobertina), see Characidium rachovii
- theageri Travassos, 1952 (Characidium), see Characidium rachovii
- theageri Travassos, 1952 (Jobertina), see Characidium rachovii
- thebensis Joannis, 1835 (Leuciscus), see Leptocypris niloticus
- Thecapteryx Fowler, 1948 (Tetraodontidae), see Sphoeroides
- Thecopsenes Fowler, 1944 (Nomeidae), see Psenes
- Thecopterus Smith, 1904 (Psychrolutidae)
- thelestomus Maul, 1951 (Coryphaenoides)
- theliodon Greenwood, 1960 (Haplochromis)
- thelmae Fowler, 1937 (Helicolenus), see Helicolenus dactylopterus
- Themistocles Whitley, 1939 (Eleotridae), see Prionobutis
- theodorae Weber, 1897 (Clarias)
- theodorae Teugels, 1982 (Anguilloclarias), see Clarias theodorae
- theodorei Ogilby, 1916 (Nemipterus)
- theodoritissieri Belloc, 1938 (Oneirodes)
- theodori-tissieri Belloc, 1938 (Oneirodes), see Oneirodes theodoritissieri
- theophila Desoutter, 1990 (Microchirus)
- theophilus Risso, 1810 (Pleuronectes), see Microchirus theophila
- theophrasti Daget, 1984 (Channa)
- theophrasti Valenciennes, 1844 (Ophiocephalus), see Channa theophrasti
- thepassii Myers, 1991 (Petroscirtes)
- thepassii Bleeker, 1853 (Petroskirtes), see Petroscirtes thepassii
- thepassii Bleeker, 1854 (Achirus), see Achirus poropterus
- Theragra Lucas in Jordan & Evermann, 1898 (Gadidae)
- Therapaina Kaup, 1860 (Microcanthinae), see Microcanthus
- Therapon Cloquet, 1819 (Teraponidae), see Terapon
- therapon Day, 1870 (Mesoprion), see Lutjanus decussatus
- theraponura Ortega & Vari, 1986 (Semaprochilodus)
- theraponura Fowler, 1906 (Prochilodus), see Semaprochilodus theraponura
- Theraps Gìnther, 1862 (Cichlidae)
- theraps Vari, 1978 (Terapon)
- theraps Cuvier, 1829 (Therapon), see Terapon theraps
- theraps Fowler, 1904 (Eutherapon), see Terapon theraps
- ?theresae Curtiss, 1938 (Holocentrus)
- ?theresae Curtiss, 1938 (Mullus)
- ?theresae Curtiss, 1938 (Abudefduf)
- ?theresae Curtiss, 1938 (Anthias)
- ?theresae Curtiss, 1938 (Balistes)
- theresae Curtiss, 1938 (Teuthis), see Acanthurus lineatus
- therese Randall, 1996 (Aseraggodes)
- theresiae Burgess, 1989 (Astroblepus)
- theresiae Steindachner, 1907 (Arges), see Astroblepus theresiae
- thereuterion van Oijen & Witte, 1996 (Haplochromis)
- therezieni Kiener, 1963 (Acentrogobius)
- therezinae Burgess, 1989 (Ageneiosus)
- therezinae Steindachner, 1909 (Pseudageneiosus), see Ageneiosus therezinae
- therezine Burgess, 1989 (Ageneiosus), see Ageneiosus therezinae
- therezine Burgess, 1989 (Pseudageneiosus), see Ageneiosus therezinae
- therma¯cus Serbetis, 1951 (Xiphias), see Xiphias gladius
- thermaicus Serbetis, 1951 (Xiphias), see Xiphias gladius
- thermalis (Lepidocephalus)
- thermalis (Cyprinus)
- thermalis Herzenstein, 1891 (Schizopygopsis)
- thermalis Kaya et al., 1992 ( Rhinichthysosculus)
- thermalis Cuvier, 1829 (Apogon)
- ?thermalis Cuvier, 1829 (Ambassis)
- thermalis Hubbs & Kuhne, 1937 (Apocope oscula), see Rhinichthys osculus thermalis
- thermalis Pethiyagoda, 1991 (Lepidocephalichthys), see Lepidocephalus thermalis
- thermalis Steindachner, 1863 (Poecilia), see Poecilia sphenops
- thermalis Valenciennes, 1844 (Leuciscus), see Puntius chola
- thermalis Valenciennes, 1846 (Cobitis), see Lepidocephalus thermalis
- Thermarces Rosenblatt & Cohen, 1986 (Zoarcidae)
- Thermobiotes Geistdoerfer, 1991 (Ilyophinae)
- thermoicos Pethiyagoda, 1991 (Esomus)
- thermoicos Valenciennes, 1842 (Nuria), see Esomus thermoicos
- thermophilum Geistdoerfer, 1994 (Pachycara)
- thermophilus Williams & Wilde, 1981 ( Crenichthysbaileyi)
- ?thermophilus Evermann & Cockerell, 1909 (Richardsonius)
- thermophilus Ege, 1930 (Paralepis), see Lestidium atlanticum
- thermophilus Hubbs & Cannon, 1935 (Hololepis), see Etheostoma fusiforme
- Therobromus Lucas in Jordan & Gilbert, 1899 (Bathylagidae), see Bathylagus
- therosideros Paulin, 1987 (Physiculus)
- thersites Seale, 1901 (Synanceia), see Synanceia verrucosa
- thesproticus Stephanidis, 1939 (Leucaspius stymphalicus var. ), see Pseudophoxinus stymphalicus
- thessa Parenti, 1989 (Neostethus)
- thessa Aurich, 1937 (Solenophallus), see Neostethus thessa
- thessa Herre (ex Aurich), 1953 (Solenophallus), see Neostethus thessa
- thessala Economidis & Miller, 1990 (Knipowitschia)
- thessalicus Stephanidis, 1950 (Alburnoides bipunctatus var. ), see Alburnoides bipunctatus
- thessalicus Stephanidis, 1950 (Alburnus alburnus), see Alburnus alburnus
- thessalus Stephanidis, 1971 (Barbus barbus), see Barbus barbus
- thessalus Vinciguerra, 1921 (Gobius), see Knipowitschia thessala
- theta Eigenmann & Eigenmann, 1890 (Diaphus)
- thetidis Paxton et al., 1989 (Neosebastes)
- thetidis Ogilby, 1899 (Dasyatis)
- thetidis Waite, 1899 (Sebastes), see Neosebastes thetidis
- thetidis Whitley, 1933 (Bathytoshia), see Dasyatis thetidis
- theunensis Kottelat, 1998 (Garra)
- theunensis Kottelat, 1998 (Scaphognathops)
- theuthis Lacep¨de, 1802 (Acanthurus), see Paracanthurus hepatus
- Theutis Bonnaterre, 1788 (Acanthurinae), see Acanthurus
- Theutys Goìan, 1770 (Acanthurinae), see Acanthurus
- thibaudeaui Whitehead, 1985 (Tenualosa)
- thibaudeaui Durand, 1940 (Alosa), see Tenualosa thibaudeaui
- thibaudeaui Durand, 1940 (Clupea), see Tenualosa thibaudeaui
- thiellei Burgess, 1981 (Amphiprion)
- thienemanni Doi, 1997 (Neolissochilus)
- ?thienemanni Ahl, 1934 (Clarias)
- thienemanni Ahl, 1933 (Lissochilus), see Neolissochilus thienemanni
- thienemanni Berg, 1932 (Coregonus lavaretus norvegicus nat. ), see Coregonus lavaretus norvegicus
- thierryi Wildekamp, Romand & Scheel, 1986 (Nothobranchius)
- thierryi (Aphyosemion), see Nothobranchius thierryi
- thierryi (Fundulopanchax), see Nothobranchius thierryi
- thierryi Ahl, 1924 (Fundulosoma), see Nothobranchius thierryi
- thikensis Boulenger, 1905 (Barbus), see Barbus amphigramma
- thingvallensis Kottelat, 1997 (Salvelinus)
- thingvallensis Saemundsson, 1909 (Salmo alpinus var. ), see Salvelinus thingvallensis
- Thinnus S. D. W., 1837 (Thunninae), see Thunnus
- thinos Stauffer, LoVullo & McKaye, 1993 (Copadichromis)
- thiollierei Fowler, 1934 (Diaphus)
- thoburni (Rutilus)
- thoburni Schultz, 1946 (Xenomugil)
- ?thoburni Gilbert, 1896 (Paricelinus)
- thoburni Jordan & Evermann, 1898 (Alcidea), see Paricelinus thoburni
- thoburni Jordan & Starks, 1896 (Mugil), see Xenomugil thoburni
- Thoburnia Jordan & Snyder in Jordan, 1917 (Catostomidae)
- Tholichthys Gìnther, 1868 (Tetragonopterinae), see Chaetodon
- tholloni G©ry, 1968 (Brycinus)
- tholloni Teugels & Thys van den Audenaerde, 1991 (Tilapia)
- tholloni Boulenger, 1901 (Synodontis), see Synodontis angelicus
- tholloni Hoedeman, 1951 (Alestobrycon), see Brycinus tholloni
- tholloni Pellegrin, 1901 (Alestes), see Brycinus tholloni
- tholloni Sauvage, 1884 (Chromis), see Tilapia tholloni
- tholonianus Thominot, 1886 (Puntius), see Barbus camptacanthus
- thomaseni Winterbottom, 1986 (Halidesmus)
- thomaseni Nielsen, 1961 (Pholioides), see Halidesmus thomaseni
- thomasi Daget, 1984 ( Citharinopsdistichodoides)
- thomasi Gosse, 1984 (Marcusenius)
- thomasi Pellegrin, 1938 (Mormyrus)
- thomasi Fowler, 1940 (Bryconamericus)
- thomasi Greenwood, 1985 (Anomalochromis)
- thomasi Maug©, 1986 (Yongeichthys)
- thomasi Whitley, 1964 (Norfolkia)
- thomasi Boulenger, 1916 (Notoglanidium)
- thomasi Boulenger, 1915 (Paratilapia), see Anomalochromis thomasi
- thomasi Boulenger, 1916 (Gnathonemus), see Marcusenius thomasi
- thomasi Boulenger, 1916 (Gobius), see Yongeichthys thomasi
- thomasi Chabanaud, 1934 (Chrysichthys delhezi), see Chrysichthys delhezi
- thomasi Chabanaud, 1934 (Synodontis), see Synodontis xiphias
- thomasi Fowler, 1949 (Gobiosoma), see Sicydium plumieri
- thomasi Pellegrin, 1924 (Citharinus), see Citharinops distichodoides thomasi
- ?thomasii Meinken, 1931 (Menidia)
- thomassi (Hypselobarbus)
- thomassi (Osteochilichthys)
- thomassi Talwar & Jhingran, 1991 (Parambassis)
- thomassi (Puntius), see Hypselobarbus thomassi
- thomassi Day, 1870 (Ambassis), see Parambassis thomassi
- thomassi Day, 1874 (Barbodes), see Hypselobarbus thomassi
- thomassi Day, 1874 (Barbus), see Hypselobarbus thomassi
- thomassi Day, 1877 (Scaphiodon), see Osteochilichthys thomassi
- thomassi Talwar & Jhingran, 1991 (Gonoproktopterus), see Hypselobarbus thomassi
- thomassi Talwar & Jhingran, 1991 (Osteochilus), see Osteochilichthys thomassi
- thomersoni Taphorn & Lilyestrom, 1984 (Rhinodoras)
- thompsoni Jordan & Richardson, 1908 (Muraenichthys)
- thompsoni Gilbert & Hubbs, 1920 (Caelorinchus)
- thompsoni Amaoka, 1984 (Oneirodes)
- thompsoni Paxton, 1979 (Protomyctophum)
- thompsoni Randall, 1956 (Acanthurus)
- thompsoni Fowler, 1923 (Hemitaurichthys)
- thompsoni Jordan, 1904 (Gnatholepis)
- thompsoni Balushkin, 1993 (Patagonotothen)
- thompsoni Randall, 1996 (Pseudanthias)
- thompsoni Kanayama, 1991 (Freemanichthys)
- thompsoni Amaoka, 1984 (Sebastes)
- thompsoni Fowler, 1952 (Peristedion)
- thompsoni Agassiz, 1855 (Carpiodes), see Carpiodes cyprinus
- thompsoni Ball, 1856 (Acipenser), see Acipenser sturio
- thompsoni Boulenger, 1918 (Mastacembelus), see Caecomastacembelus frenatus
- thompsoni Chapman, 1944 (Electrona), see Protomyctophum thompsoni
- thompsoni Chapman, 1944 (Myctophum), see Protomyctophum thompsoni
- thompsoni Fowler, 1923 (Aphareus), see Aphareus rutilans
- thompsoni Fowler, 1923 (Caesioperca), see Pseudanthias thompsoni
- thompsoni Fowler, 1923 (Cubiceps), see Ariomma evermanni
- thompsoni Fowler, 1923 (Hepatus), see Acanthurus thompsoni
- thompsoni Fowler, 1923 (Nesogrammus), see Lepidocybium flavobrunneum
- thompsoni Fowler, 1923 (Platophrys), see Bothus myriaster
- thompsoni Fowler, 1923 (Stereolepoides), see Epinephelus lanceolatus
- thompsoni Fowler, 1949 (Hyphessobrycon), see Bryconella pallidifrons
- thompsoni Gilbert & Hubbs, 1920 (Coelorhynchus), see Caelorinchus thompsoni
- thompsoni Hubbs, 1921 (Sciaena), see Umbrina roncador
- thompsoni Iwamoto, 1990 (Coelorinchus), see Caelorinchus thompsoni
- thompsoni Jordan & Gilbert, 1898 (Podothecus), see Freemanichthys thompsoni
- thompsoni Jordan & Hubbs, 1925 (Sebastodes), see Sebastes thompsoni
- thompsoni Jordan & Hubbs, 1925 (Sebastosomus), see Sebastes thompsoni
- thompsoni Jordan & Seale, 1907 (Elates), see Elates ransonnetii
- thompsoni Jordan, Evermann & Tanaka, 1927 (Fares), see Aphareus rutilans
- thompsoni Nalbant, 1986 (Nox), see Hemitaurichthys thompsoni
- thompsoni Page & Burr, 1991 (Triglopsis), see Myoxocephalus thompsonii
- thompsoni Schultz, 1934 (Dolopichthys), see Oneirodes thompsoni
- thompsoni Seale, 1905 (Caranx), see Caranx sexfasciatus
- thompsoni Whitley, 1931 (Humefordia), see Aphareus rutilans
- thompsoni Whitley, 1948 (Epinephelus), see Epinephelus perplexus
- thompsonii Lee et al., 1980 (Myoxocephalus)
- thompsonii Dum©ril, 1870 (Amia), see Amia calva
- thompsonii Dum©ril, 1870 (Lepidosteus), see Lepisosteus osseus
- thompsonii Girard, 1851 (Triglopsis), see Myoxocephalus thompsonii
- thompsonii Gìnther, 1860 (Ptyonotus), see Myoxocephalus thompsonii
- thomsoni Gìnther, 1880 (Scorpaena)
- thomsoni Isbrìcker, 1980 (Chaetostoma)
- thomsoni Borodin, 1928 (Gymnothorax), see Gymnothorax pictus
- thomsoni Regan, 1904 (Chaetostomus), see Chaetostoma thomsoni
- thomsonii Nelson, 1989 (Cottunculus)
- thomsonii Gìnther, 1882 (Cottus), see Cottunculus thomsonii
- thonneri Steindachner, 1912 (Chrysichthys)
- thonus (Scomber)
- thoracata Whitehead, 1985 (Escualosa)
- thoracata (Megalechis)
- thoracata Valenciennes, 1847 (Kowala), see Escualosa thoracata
- Thoracatherina Fowler, 1941 (Atherininae), see Atherinomorus
- thoracatum Gìnther, 1868 (Hypoptopoma)
- thoracatum Gìnther, 1868 (Hypostomatinum), see Hypoptopoma thoracatum
- thoracatum Ortega & Vari, 1986 (Hoplosternum), see Megalechis thoracata
- thoracatus Bleeker, 1862 (Auchenipterichthys)
- thoracatus Kner, 1858 (Auchenipterus), see Auchenipterichthys thoracatus
- thoracatus Valenciennes, 1840 (Callichthys), see Megalechis thoracata
- thoracicus (Auchenipterus)
- Thoracocharacinae (Gasteropelecidae)
- Thoracocharax Fowler, 1907 (Thoracocharacinae)
- Thoracochromis Greenwood, 1979 (Cichlidae)
- thoracotaeniatus Yamamoto, 1982 (Bodianus)
- thoracotaeniatus Allen, 1991 (Neoglyphidodon)
- thoracotaeniatus Fowler & Bean, 1928 (Abudefduf), see Neoglyphidodon thoracotaeniatus
- ?thorax Bloch & Schneider, 1801 (Johnius)
- thoreauianus Jordan, 1877 (Semotilus), see Semotilus atromaculatus
- thorectes Isbrìcker, 1975 (Pseudohemiodon)
- thori Svetovidov, 1973 ( Gadiculusargenteus)
- thori Kyle, 1913 (Arnoglossus)
- thori Chabanaud, 1931 (Kyleia), see Arnoglossus thori
- thori Ege, 1930 (Paralepis pseudosphyraenoides), see Lestidiops jayakari
- thori T¥ning, 1918 (Myctophum glaciale var. ), see Benthosema glaciale
- thori de Buen, 1928 (Gobius), see Thorogobius ephippiatus
- Thorichthys Meek, 1904 (Cichlidae)
- Thorogobius Miller, 1969 (Gobiidae)
- Thorophos Bruun, 1931 (Maurolicinae)
- ?thoropsis Pezold & Gilbert, 1987 (Gobionellus)
- thorpei Randall, 1986 (Naso)
- thorpei Smith, 1977 (Argyrosomus)
- thorpei Smith, 1979 (Rhabdosargus)
- thorpei Smith, 1966 (Atulonotus), see Naso thorpei
- thorpei Trewavas, 1977 (Afroscion), see Argyrosomus thorpei
- thosaporni Russell, 1991 (Nemipterus)
- thouin Dor, 1984 (Rhinobatos)
- thouin Anonymous, 1798 (Raja), see Rhinobatos thouin
- thouiniana Shaw, 1804 (Raja), see Rhinobatos thouin
- thracicus Battalgil, 1942 (Phoxinellus), see Leucaspius delineatus
- thracicus Drensky, 1930 (Leuciscus cephalus orientalis nat. ), see Leuciscus cephalus
- thrakica Economidis, 1995 (Sabanejewia aurata), see Sabanejewia aurata
- Thrattidion Roberts, 1972 (Clupeidae)
- Threpterius Richardson, 1850 (Chironemidae)
- thrissa Lacep¨de, 1803 (Clupanodon)
- ?thrissa Gill, 1861 (Opisthonema)
- Thrissa Rafinesque, 1815 (Clupeidae), see Clupanodon
- thrissa Linnaeus, 1758 (Clupea), see Clupanodon thrissa
- thrissa Rafinesque, 1815 (Thrissa), see Clupanodon thrissa
- thrissina Eschmeyer & Herald, 1983 (Harengula)
- Thrissina Jordan & Seale, 1925 (Engraulidae), see Thryssa
- thrissina Jordan & Gilbert, 1882 (Clupea), see Harengula thrissina
- Thrissobrycon Bæhlke, 1953 (Cheirodontinae)
- thrissoceps Isbrìcker, 1980 (Rineloricaria)
- thrissoceps Fowler, 1943 (Loricaria), see Rineloricaria thrissoceps
- Thrissocharax Myers, 1926 (Distichodinae), see Hemigrammocharax
- Thrissochromis Fowler, 1941 (Chrominae), see Chromis
- Thrissocles Jordan & Evermann in Jordan, 1917 (Engraulidae), see Thryssa
- thrissoides Spix & Agassiz, 1829 (Megalops)
- thrissoides Bloch & Schneider, 1801 (Clupea), see Megalops cyprinoides
- thrissoides Mìller & Troschel, 1848 (Engraulis), see Anchoa spinifer
- Thrissomimus Gill in Jordan & Evermann, 1911 (Coregoninae), see Coregonus
- thrix Bæhlke & Robins, 1960 (Coryphopterus)
- Thrycomycterus N.A., - (Trichomycterinae), see Trichomycterus
- thrysoidea Bæhlke, 1995 (Siderea)
- thrysoidea Richardson, 1845 (Muraena), see Siderea thrysoidea
- Thryssa Cuvier, 1829 (Engraulidae)
- Thryssocypris Roberts & Kottelat, 1984 (Cyprinidae)
- thumbergi Regan, 1920 (Serranochromis)
- thumbergi Castelnau, 1861 (Chromys), see Serranochromis thumbergi
- thunberg (Arius)
- ?thunberg Lacep¨de, 1802 (Holocentrus)
- ?thunberg Lacep¨de, 1801 (Labrus)
- thunberg Lacep¨de, 1803 (Gobius), see Gobius patella
- thunberg Lacep¨de, 1803 (Pimelodus), see Arius thunberg
- thunbergianus Lacep¨de, 1803 (Plotosus), see Plotosus lineatus
- thunbergii Bloch & Schneider, 1801 (Grammistes), see Parapristipoma trilineatum
- thunbergii Cuvier, 1830 (Diagramma), see Diagramma pictum
- thunensis Fatio, 1890 (Coregonus schinzii helveticus var. ), see Coregonus alpinus
- thunina Cuvier, 1829 (Thynnus), see Euthynnus alletteratus
- Thunninae (Scombridae)
- thunnorum (Lestidium)
- Thunnus South, 1845 (Thunninae)
- thuragnathus Greenwood, 1967 (Haplochromis)
- thurni Eigenmann, 1912 (Roeboides)
- thurstoni Notarbartolo-di-Sciara, 1987 (Mobula)
- thurstoni Day, 1888 (Apogon), see Apogon nigripinnis
- thurstoni Day, 1888 (Gobius), see Istigobius ornatus
- thurstoni Lloyd, 1908 (Dicerobatis), see Mobula thurstoni
- Thymallinae (Salmonidae)
- Thymalloides Berg, 1908 (Thymallinae), see Thymallus
- thymalloides Richardson, 1823 (Coregonus), see Thymallus arcticus
- Thymallus Linck, 1790 (Thymallinae)
- thymallus Linck, 1790 (Thymallus)
- thymallus Gistel, 1848 (Orthocolus), see Thymallus thymallus
- thymallus Linnaeus, 1758 (Salmo), see Thymallus thymallus
- thymallus Minding, 1832 (Choregon), see Thymallus thymallus
- thymelicus (Lophius)
- thymus Bonnaterre, 1788 (Salmo), see Thymallus thymallus
- Thynnichthyina Fowler, 1937 (Cyprinidae), see Thynnichthys
- Thynnichthys Bleeker, 1859 (Cyprinidae)
- Thynnichthys Giglioli, 1880 (Thunninae), see Euthynnus
- ?thynniculina Maksimov & Hognestad, 1969 ( Pterycombusbrama)
- thynno¯des Bleeker, 1852 (Leuciscus), see Thynnichthys thynnoides
- thynno¯des Bleeker, 1855 (Auxis), see Auxis rochei
- thynnoides Bleeker, 1859 (Thynnichthys)
- thynnoides Kishimoto, 1984 (Naso)
- thynnoides Bleeker, 1852 (Leuciscus), see Thynnichthys thynnoides
- thynnoides Bleeker, 1855 (Auxis), see Auxis rochei
- thynnoides Cuvier, 1829 (Axinurus), see Naso thynnoides
- thynnoides Valenciennes, 1835 (Axinurus), see Naso thynnoides
- thynnus South, 1845 (Thunnus)
- Thynnus Cuvier, 1816 (Thunninae), see Thunnus
- thynnus Cuvier, 1816 (Thynnus), see Thunnus thynnus
- thynnus Jordan, 1888 (Albacora), see Thunnus thynnus
- thynnus Linnaeus, 1758 (Scomber), see Thunnus thynnus
- Thyreoconger Wade, 1946 (Bathymyrinae), see Ariosoma
- Thyrina Jordan & Culver in Jordan, 1895 (Menidiinae), see Atherinella
- Thyrinops Hubbs, 1918 (Menidiinae), see Atherinella
- Thyris Goode, 1880 (Bothinae), see Monolene
- Thyriscus Gilbert & Burke, 1912 (Cottidae)
- Thyrsites Cuvier in Cuvier & Valenciennes, 1832 (Gempylidae)
- thyrsites Saville-Kent, 1893 (Serranus), see Cephalopholis argus
- Thyrsitoides Fowler, 1929 (Gempylidae)
- thyrsitoides Lesson, 1831 (Lemnisoma), see Gempylus serpens
- Thyrsitops Gill, 1862 (Gempylidae)
- Thyrsoidea Kaup, 1856 (Muraenidae)
- thyrsoidea (Siderea)
- thyrsoides Richardson, 1845 (Muraena), see Siderea thyrsoidea
- thyrsoideus Hatooka, 1984 (Gymnothorax), see Siderea thyrsoidea
- thyrsoideus Paxton et al., 1989 (Siderea), see Siderea thrysoidea
- Thysanactis Regan & Trewavas, 1930 (Melanostomiinae)
- thysanema Pietsch & Seigel, 1980 (Oneirodes)
- Thysanichthys Jordan & Starks, 1904 (Scorpaeninae)
- thysanius Bath, 1989 (Parablennius)
- thysanius Jordan & Seale, 1907 (Blennius), see Parablennius thysanius
- Thysanocara Regan, 1906 (Ancistrinae), see Ancistrus
- Thysanocheilus Kner, 1864 (Labridae), see Labrichthys
- thysanochila Smith, 1989 (Rhechias)
- thysanochila Reid, 1934 (Congrina), see Rhechias thysanochila
- Thysanochilus Philippi, 1857 (Geotriinae), see Geotria
- thysanophorus Regan & Trewavas, 1932 (Dolopichthys), see Oneirodes eschrichtii
- Thysanophrys Ogilby, 1898 (Platycephalidae)
- Thysanopsetta Gìnther, 1880 (Paralichthyidae)
- thysanopterus Mooi, 1995 (Plesiops)
- thysanotus Bæhlke, 1966 (Dactyloscopus), see Dactyloscopus amnis
- thysi Trewavas, 1974 (Barbus)
- thysi (Radda, 1977) (Aphyosemion)
- thysi Poll, 1965 (Parakneria)
- thysi Skelton & Teugels, 1991 (Serranochromis)
- thysi Stiassny, Schliewen & Dominey, 1992 (Tilapia)
- thysi Risch, 1985 (Chrysichthys)
- thysi Skelton, 1989 (Doumea)
- thysi Poll, 1971 (Synodontis)
- thysi Poll, 1967 (Haplochromis), see Serranochromis thysi
- thysi Radda, 1977 (Mesoaphyosemion), see Aphyosemion thysi
- Thysochromis Daget, 1988 (Cichlidae)
- thysthlon Long & McCosker, 1998 (Gadella)
- thysvillensis David & Poll, 1937 (Allabenchelys submarginatus), see Clarias camerunensis
- thysvillensis David & Poll, 1937 (Clarias submarginatus), see Clarias camerunensis
- ?tiahua Curtiss, 1938 (Muraena)
- tiarella Jordan, 1902 (Malthopsis)
- tibanica Trewavas, 1941 (Garra)
- tiberiadis Lortet, 1883 (Chromis), see Sarotherodon galilaeus
- tibestii Pellegrin, 1919 (Labeo)
- tibetana Zhang et al., 1995 (Triplophysa)
- tibetana Yeuh & Hwang, 1964 (Rugogymnocypris), see Gymnocypris waddellii
- tibetanus Zugmayer, 1909 (Schizothorax)
- tibetanus Regan, 1905 (-nemacheilus), see Triplophysa tibetana
- tibetanus Regan, 1905 (Nemachilus), see Triplophysa tibetana
- tibetanus Yueh & Hwang, 1964 (Rugogymnocypris), see Gymnocypris waddellii
- tibicen Kaup, 1860 (Centropyge)
- tibicen Bleeker, 1858 (Aspredinichthys)
- tibicen Cuvier, 1831 (Holacanthus), see Centropyge tibicen
- tibicen Eigenmann & Eigenmann, 1889 (Platystacus), see Aspredinichthys tibicen
- tibicen Valenciennes (ex Temminck), 1840 (Aspredo), see Aspredinichthys tibicen
- tiburo Gilbert, 1967 (Sphyrna)
- tiburo Gill, 1862 (Reniceps), see Sphyrna tiburo
- tiburo Linnaeus, 1758 (Squalus), see Sphyrna tiburo
- tiburo Poey, 1860 (Squalus), see Carcharhinus falciformis
- tiburo Swainson, 1839 (Platysqualus), see Sphyrna tiburo
- ?tickelli Day, 1888 (Apogon)
- tico Bussing, 1963 (Phallichthys)
- ticto (Barbus)
- ticto (Fowler) (Puntius)
- ticto Fowler (Barbus), see Puntius ticto
- ticto Hamilton, 1822 (Cyprinus), see Puntius ticto
- tidemani Eggert, 1935 (Periophthalmus variabilis), see Periophthalmus novemradiatus
- tiea Lesson, 1831 (Diacope), see Lutjanus gibbus
- tiedemanni Leuckart, 1893 (Syngnathi), see Nerophis lumbriciformis
- tiekoroi L©vªque, Teugels & Thys van den Audenaerde, 1987 (Barbus)
- tienmusanensis Banarescu & Nalbant, 1967 (Gnathopogon imberbis), see Gnathopogon imberbis
- tienmusanensis Chu, 1931 (Leucogobio), see Gnathopogon imberbis
- tientaiensis Wang, 1935 (Hemibarboides), see Belligobio nummifer
- tientainensis (Leptobotia)
- tientainensis Wu, 1930 (Botia), see Leptobotia tientainensis
- tientsinensis Abbott, 1901 (Culter), see Culter alburnus
- tiere Shimizu, 1984 (Sargocentron)
- tiere Cuvier, 1829 (Holocentrum), see Sargocentron tiere
- tiereo¯des Bleeker, 1853 (Holocentrum), see Sargocentron tiereoides
- tiereoides Shimizu, 1984 (Sargocentron)
- tiereoides Bleeker, 1853 (Holocentrum), see Sargocentron tiereoides
- ?tierrae Hildebrand, 1946 (Scorpaena)
- tiet© Eigenmann & Norris, 1900 (Myletes), see Myleus tiete
- tiete (Myleus)
- tiete Eigenmann & Norris, 1900 (Myletes), see Myleus tiete
- tietensis Burgess, 1989 (Pseudotocinclus)
- tietensis Isbrìcker, 1980 (Hypostomus)
- tietensis Ihering, 1905 (Plecostomus), see Hypostomus tietensis
- tietensis Ihering, 1907 (Microlepidogaster), see Pseudotocinclus tietensis
- tietensis Ihering, 1907 (Otocinclus), see Pseudotocinclus tietensis
- Tifia Jordan in Jordan & Jordan, 1922 (Tetragonopterinae), see Chaetodon
- tiflissica Kamensky, 1899 (Barbus cyri var. ), see Barbus lacerta cyri
- tigerinus (Gobius)
- tigerinus Klunzinger, 1872 (Genypterus), see Genypterus blacodes
- Tigoma Girard, 1856 (Cyprinidae), see Gila
- tigrellus Nichols, 1951 (Gobius)
- Tigrigobius Fowler, 1931 (Gobiidae), see Elacatinus
- tigrina Ploeg, Jegu & Ferreira, 1991 (Crenicichla)
- tigrina Jordan & Snyder, 1901 (Scuticaria), see Scuticaria tigrinus
- tigrina McCosker & Rosenblatt, 1995 (Scuticaria), see Scuticaria tigrinus
- tigrina Rìppell, 1830 (Muraena), see Myrichthys maculosus
- tigrinum Bleeker, 1862 (Hemiplatystoma), see Pseudoplatystoma fasciatum
- tigrinum Richardson, 1846 (Pelor), see Inimicus japonicus
- tigrinum Robins, Bailey, Bond, Brooker, Lachner, Lea & Scott, 1991 (Pseudoplatystoma), see Pseudoplatystoma fasciatum
- tigrinum Valenciennes, 1840 (Platystoma), see Pseudoplatystoma fasciatum
- tigrinus (Scuticaria)
- tigrinus (Allen & Robertson, 1994) (Myrichthys)
- tigrinus Robins & Ray, 1986 (Serranus)
- tigrinus Britski, 1981 (Merodontotus)
- ?tigrinus Borodin, 1929 ( Leporinusfasciatus)
- ?tigrinus Walbaum, 1792 (Gobius)
- ?tigrinus Philippi, 1866 (Trichomycterus)
- tigrinus Allen & Robertson, 1994 (Uropterygius), see Myrichthys tigrinus
- tigrinus Bloch, 1790 (Holocentrus), see Serranus tigrinus
- tigrinus Castle & McCosker, 1986 (Uropterygius), see Scuticaria tigrinus
- tigrinus Cuvier, 1818 (Diodon), see Chilomycterus reticulatus
- tigrinus Gmelin, 1789 (Squalus), see Stegostoma fasciatum
- tigrinus Lesson, 1828 (Ichthyophis), see Scuticaria tigrinus
- tigrinus Mìller & Henle, 1839 (Galeocerdo), see Galeocerdo cuvier
- tigrinus Risso, 1827 (Crenilabrus), see Symphodus roissali
- tigrinus Weyenbergh, 1877 (Symbranchus), see Synbranchus marmoratus
- tigripinnis Klunzinger, 1872 (Labrichthys tetrica var. ), see Notolabrus tetricus
- tigris (Orthrias)
- tigris Dawson, 1985 (Filicampus)
- tigris Springer, 1988 (Ecsenius)
- tigris Larson, 1985 (Bryaninops)
- tigris Robins & Ray, 1986 (Mycteroperca)
- tigris Atwood, 1869 (Carcharias), see Isurus oxyrinchus
- tigris Berg, 1949 (Nemachilus), see Orthrias tigris
- tigris Castelnau, 1879 (Syngnathus), see Filicampus tigris
- tigris De Vis, 1884 (Cybium), see Scomberomorus semifasciatus
- tigris Fowler, 1913 (Curimatus), see Prochilodus
- tigris Goren, 1974 (Noemacheilus), see Orthrias tigris
- tigris Heckel, 1843 (Cobitis), see Orthrias tigris
- tigris Herre, 1935 (Alepideleotris), see Eleotrica cableae
- tigris Poey, 1852 (Chironectes), see Antennarius striatus
- tigris Valenciennes, 1833 (Serranus), see Mycteroperca tigris
- tigris Vari & Castro, 1988 (Prochilodus), see Prochilodus
- tigurinus Fatio, 1890 (Coregonus), see Coregonus zuerichensis
- tihoni Poll, 1977 (Platyallabes)
- tihoni Poll, 1944 (Gymnallabes), see Platyallabes tihoni
- tikaderi Barman, 1985 (Aborichthys)
- tiki Greenfield, 1974 (Myripristis)
- ?tiki Randall, 1964 (Cantherhines)
- tila Hamilton, 1822 (Cyprinus), see Barilius bendelisis
- Tilapia Smith, 1840 (Cichlidae)
- tile (Gymnothorax)
- tile (Lycodontis)
- tile Carpenter, 1987 (Pterocaesio)
- tile (Gymnothorax), see Lycodontis tile
- tile Cuvier, 1830 (Caesio), see Pterocaesio tile
- tile Hamilton, 1822 (Muraenophis), see Lycodontis tile
- tileo Shrestha, 1978 (Barilius)
- tileo Hamilton, 1822 (Cyprinus), see Barilius tileo
- Tilesia Swainson, 1838 (Gadidae), see Eleginus
- ?tilesii Valenciennes, 1844 (Catostomus)
- tilesii Cuvier, 1829 (Hemilepidotus), see Hemilepidotus hemilepidotus
- Tilesina Schmidt in Jordan & Starks, 1904 (Agonidae)
- tilhoi Pellegrin, 1909 (Gephyroglanis), see Chrysichthys auratus
- tilhoi Risch, 1986 (Chrysichthys auratus), see Chrysichthys auratus
- tille Cuvier, 1833 (Caranx)
- Tilodon Thominot (ex Guichenot), 1881 (Chaetodontidae)
- tilstoni Last & Stevens, 1994 (Carcharhinus)
- tilstoni Whitley, 1950 (Galeolamna pleurotaenia), see Carcharhinus tilstoni
- tiltoni Eschmeyer, 1997 (Dactyloptena)
- Tilurella Roule, 1911 (Nemichthyidae), see Nemichthys
- Tilurus Kælliker, 1854 (Notacanthidae)
- timagamiensis Henn & Rinckenbach, 1925 (Salvelinus), see Salvelinus fontinalis
- ?timarensis Kuru, 1980 (Alburnus)
- timbiri (Barbus), see Puntius sarana
- timbiri Deraniyagala, 1963 (Puntius), see Puntius sarana
- timbore Eigenmann, 1922 (Leporellus), see Leporellus pictus
- timbuiense Buckup, 1993 (Characidium)
- timbuiensis Travassos, 1946 (Characidium), see Characidium timbuiense
- timbure Natterer, 1859 (Salmo), see Leporellus pictus
- timidus Gulia, 1861 (Micromugil), see Aphanius fasciatus
- timidus Smith, 1959 (Pleurosicyops), see Pleurosicya muscarum
- timlei Nakaya, 1984 (Narcine)
- timlei Bloch & Schneider, 1801 (Raja), see Narcine timlei
- timlei Gill, 1862 (Cyclonarce), see Narcine timlei
- timorensis Huber, 1996 (Oryzias)
- timorensis Bleeker, 1854 (Apogon)
- timorensis Randall, 1981 (Halichoeres)
- timorensis Randall & Allen, 1987 (Epinephelus)
- timorensis Allen & Talbot, 1985 (Lutjanus), see Lutjanus timoriensis
- timorensis Bleeker, 1852 (Julis), see Halichoeres timorensis
- timorensis Gìnther, 1870 (Ophichthys), see Yirrkala lumbricoides
- timorensis Weber & de Beaufort, 1922 (Aplocheilus), see Oryzias timorensis
- timoriensis Allen & Talbot, 1985 (Lutjanus)
- timoriensis Cuvier, 1829 (Platycephalus), see Kumococius rodericensis
- timoriensis Quoy & Gaimard, 1824 (Diacope), see Lutjanus timoriensis
- timpanogensis Cope, 1874 (Hybopsis), see Gila atraria
- timucoides van Hasselt, 1824 (Belone), see Tylosurus crocodilus
- timucu (Strongylura)
- timucu Valenciennes, 1846 (Belone), see Strongylura marina
- timucu Walbaum, 1792 (Esox belone var. ), see Strongylura timucu
- tinanti Poll, 1939 (Belonophago)
- tinanti Snoeks & De Boeck, 1991 (Steatocranus)
- tinanti Poll, 1939 (Gobiochromis), see Steatocranus tinanti
- ?tinayrei Zugmayer, 1914 (Gavialiceps)
- Tinca Cuvier, 1816 (Cyprininae)
- tinca Cuvier, 1816 (Tinca)
- tinca Berg, 1914 (Varicorhinus)
- tinca (Strinsia)
- tinca Bauchot & Quignard, 1973 (Symphodus)
- ?tinca Goldfuss, 1820 (Gadus)
- tinca Bloch & Schneider, 1801 (Phycis), see Phycis blennoides
- tinca Cantraine, 1835 (Serranus), see Mycteroperca rubra
- tinca Derjugin, 1899 (Capoeta), see Varicorhinus tinca
- tinca Heckel, 1843 (Scaphiodon), see Varicorhinus tinca
- tinca Linnaeus, 1758 (Cyprinus), see Tinca tinca
- tinca Linnaeus, 1758 (Labrus), see Symphodus tinca
- tinca Ræse, 1793 (Phycis), see Phycis blennoides
- tinca-auratus Bloch, 1782 (Cyprinus), see Tinca tinca
- tincaauratus Bloch, 1782 (Cyprinus), see Tinca tinca
- tincaauratus Lacep¨de, 1803 (Cyprinus), see Tinca tinca
- tincaurea Shaw, 1804 (Cyprinus), see Tinca tinca
- tincella Girard, 1856 (Algansea)
- tincella Valenciennes, 1844 (Leuciscus), see Algansea tincella
- ?tincoides Mohr, 1927 (Myxus)
- ?tinea Forssk¥l, 1775 (Labrus)
- tingi Fang, 1936 (Sinocyclocheilus), see Sinocyclocheilus grahami
- tingi Okamura, 1984 (Waku), see Johnius distinctus
- tingi Tang, 1937 (Pseudosciaena), see Johnius distinctus
- tingi Trewavas, 1977 (Johnius), see Johnius distinctus
- tingi Wu et al., 1977 (Sinocyclocheilus grahami), see Sinocyclocheilus grahami
- Tinimogaster Bonaparte (ex Cocco), 1846 (Moridae), see Mora
- tinkeri Schultz, 1951 (Chaetodon)
- tinkeri Nalbant, 1984 (Heminigellus), see Chaetodon tinkeri
- tinkhami Herre, 1934 (Crossostoma)
- tinkhami Eschmeyer, 1986 (Sebastapistes)
- tinkhami Fowler, 1945 (Uropterygius), see Uropterygius micropterus
- tinkhami Fowler, 1946 (Anampses), see Anampses caeruleopunctatus
- tinkhami Fowler, 1946 (Scorpaena), see Sebastapistes tinkhami
- tinro Sazonov, 1985 (Nezumia)
- ?tinro Gavrilov, 1973 (Seriolella)
- tiomanensis Kottelat, 1990 (Sundoreonectes)
- tiong Kottelat & Whitten, 1996 (Glyptothorax)
- tiong Popta, 1904 (Glyptosternum), see Glyptothorax tiong
- Tiphle Rafinesque, 1810 (Syngnathynae), see Syngnathus
- tipo de Buen, 1931 (Pomatoschistus microps f. ), see Pomatoschistus microps
- tippecanoe Jordan & Evermann, 1890 (Etheostoma)
- tiranti d'Aubenton & Blanc, 1966 (Monotreta), see Carinotetraodon lorteti
- tirapatae Boulenger, 1902 (Orestias), see Orestias agassizii
- tirapensis Kottelat, 1990 (Schistura)
- tirapensis Datta & Barman, 1984 (Garra), see Garra kempi
- tiraquae Fowler, 1940 (Pygidium), see Trichomycterus rivulatus
- tirbaki Huber, 1999 (Aphyosemion)
- Tiricoris Whitley, 1955 (Corinae), see Coris
- tiririca Natterer, 1859 (Salmo), see Leporinus striatus
- Tirodon Hay, 1882 (Cyprinidae), see Hybognathus
- Tirus Rafinesque, 1810 (Cyprinodontidae), see Synodus
- tirus Rafinesque, 1810 (Salmo), see Aulopus filamentosus
- titcombi (Trichomycterus)
- titcombi Eigenmann, 1917 (Hatcheria), see Trichomycterus titcombi
- titcombi Evermann & Kendall, 1906 (Galaxias), see Galaxias maculatus
- titius Shrestha, 1978 (Puntius)
- titius (Barbus), see Puntius titius
- titius Hamilton, 1822 (Cyprinus), see Puntius titius
- ?titling Ascanius, 1767 (Gadus)
- titteya Deraniyagala, 1929 (Puntius)
- titteya (Barbus), see Puntius titteya
- tittmanni Welsh, 1923 (Aristostomias)
- titus Shrestha, 1978 (Cyprinus), see Puntius titius
- ?tjilankahanensis Bleeker, 1851 (Gobius)
- tjutjot Bleeker, 1852 (Carcharias), see Carcharhinus falciformis
- tjutjot Bleeker, 1852 (Prionodon), see Carcharhinus falciformis
- tlahuacensis Meek, 1902 (Evarra)
- Tlaloc Alvarez & Carranza, 1951 (Profundulidae), see Profundulus
- t¥ningi Angel & Verrier, 1931 (Lampanyctus macropterus), see Lampanyctus macropterus
- t¥ningi Bauchot-Boutin, 1953 (Serrivomer), see Serrivomer beanii
- t¥ningi Parr, 1947 (Mirorictus), see Mirorictus taningi
- toae Poll, 1986 (Neolamprologus)
- toae Colombe & Allgayer, 1985 (Paleolamprologus), see Neolamprologus toae
- toae Poll, 1949 (Lamprologus), see Neolamprologus toae
- ?toau Curtiss, 1938 (Anthias)
- tobae Tanaka, 1916 (Raja), see Okamejei kenojei
- tobae Tanaka, 1927 (Raja), see Raja karagea
- tobal Castelnau (ex Adanson), 1855 (Lepidosiren), see Protopterus annectens
- tobana Ahl, 1934 (Rasbora)
- tobarana (Clupea)
- tobianus Linnaeus, 1758 (Ammodytes)
- tobijei Bleeker, 1854 (Myliobatis)
- tobitukai (Notoraja)
- tobitukai Hiyama, 1940 (Raja), see Notoraja tobitukai
- tobitukai Nakaya, 1984 (Bathyraja), see Notoraja tobitukai
- toboensis Svensson, 1933 (Labeo), see Labeo parvus
- toboro Burgess, 1989 (Oloplotosus), see Oloplotosus torobo
- tocantinensis Menezes, 1987 (Cynopotamus)
- tocantinensis Britski, 1997 (Corumbataia)
- tocantinsensis Zuanon, Rapp Py-Daniel & J©gu, 1993 (Aguarunichthys)
- tocantinsi La Monte, 1939 (Tridentopsis)
- Tocantinsia Mees, 1974 (Auchenipteridae)
- Tocichthys Hubbs, 1918 (Embiotocidae), see Hyperprosopon
- Todarus Grassi & Calandruccio, 1896 (Ilyophinae), see Dysomma
- toddi ( Fundulopanchaxoccidentalis)
- toddi Boulenger, 1905 (Paratilapia), see Oreochromis tanganicae
- toddi Clausen, 1966 (Aphyosemion occidentale), see Fundulopanchax occidentalis toddi
- toddi Clausen, 1966 (Callopanchax occidentalis), see Fundulopanchax occidentalis toddi
- toddi Clausen, 1966 (Roloffia occidentale), see Fundulopanchax occidentalis toddi
- toddi Huber, 1978 (Callopanchax), see Fundulopanchax occidentalis toddi
- toddi Huber, 1978 (Roloffia), see Fundulopanchax occidentalis toddi
- toddi Wildekamp et al., 1986 (Aphyosemion), see Fundulopanchax occidentalis toddi
- toeniatus Spix, 1829 (Erythrinus), see Hoplerythrinus unitaeniatus
- toe-roe Cuvier, 1830 (Otolithus), see Cynoscion acoupa
- toeroe Cuvier, 1830 (Otolithus), see Cynoscion acoupa
- toeroe Gill, 1862 (Apseudobranchus), see Cynoscion acoupa
- ?togar Montrouzier, 1857 (Atherina)
- togedango Kuronuma, 1943 (Eumicrotremus)
- togo Meinken, 1930 (Fundulus spec. ), see Fundulopanchax filamentosus
- togoensis Ahl, 1928 (Anabas), see Ctenopoma petherici
- togoensis Gosse, 1986 (Ctenopoma), see Ctenopoma petherici
- togolensis Loiselle, 1971 ( Epiplatyssexfasciatus)
- tohizonae Maug©, 1986 (Hypseleotris)
- tohizonae Steindachner, 1880 (Eleotris), see Hypseleotris tohizonae
- toi McCann & McKnight, 1980 (Nezumia)
- tokarevi Miller, 1993 (Pseudotrematomus)
- tokarevi Andriashev, 1978 (Trematomus), see Pseudotrematomus tokarevi
- tokiensis Okamura, 1984 (Caelorinchus)
- tokiensis Dæderlein, 1887 (Pseudobagrus)
- ?tokiensis Dæderlein, 1887 (Lepidotrigla)
- tokiensis Okamura, 1984 (Coelorinchus), see Caelorinchus tokiensis
- tokiensis Steindachner & Dæderlein, 1887 (Macrurus), see Caelorinchus tokiensis
- tokionensis Dæderlein, 1883 (Percalabrax), see Lateolabrax japonicus
- tokionis Nakaya, 1984 (Torpedo)
- tokionis Jordan & Starks, 1904 (Sebastodes), see Sebastes inermis
- tokionis Tanaka, 1908 (Tetronarcine), see Torpedo tokionis
- tokisensis Dæderlein, 1883 (Upeneoides), see Upeneus japonicus
- tokolosh Turner, 1994 (Pallidochromis)
- tokubee Shirai, Hagiwara & Nakaya, 1992 (Scyliorhinus)
- tokubire Ishikawa, 1904 (Podothecus), see Podothecus sachi
- tokunagai Arai & Akai, 1988 (Acheilognathus), see Acanthorhodeus chankaensis
- tokunagai Mori, 1934 (Acanthorhodeus), see Acanthorhodeus chankaensis
- tol Smith-Vaniz & Staiger, 1973 (Scomberoides)
- tol Cuvier, 1832 (Chorinemus), see Scomberoides tol
- tol Fowler, 1905 (Rhaphiolepis), see Scomberoides tol
- Toledia Miranda-Ribeiro, 1915 (Centrolophidae), see Hyperoglyphe
- toli (Hilsa)
- toli Kyushin et al., 1977 (Macrura), see Hilsa toli
- toli Valenciennes, 1847 (Alausa), see Hilsa toli
- toli Whitehead, 1985 (Tenualosa), see Hilsa toli
- tolimae Fowler (Hemibrycon)
- tolimae Eigenmann, 1913 (Bryconamericus), see Hemibrycon tolimae
- tollardi Chabanaud, 1924 (Latilus), see Branchiostegus argentatus
- tolmachoffi Berg, 1926 (Salvelinus)
- ?tolo Cuvier, 1829 (Cyprinus)
- toloo Cuvier, 1832 (Chorinemus), see Scomberoides tala
- tolooparah Rìppell, 1829 (Lichia), see Scomberoides lysan
- ?tolsoni Bleeker, 1854 (Eleotris)
- tolu Akazaki, 1984 (Nemipterus), see Nemipterus peronii
- tolu Fowler, 1904 (Odontoglyphis), see Nemipterus peronii
- tolu Valenciennes, 1830 (Dentex), see Nemipterus peronii
- ?toma Hamlin, 1862 (Salmo)
- tomaculum Kottelat & Kim, 1992 (Lepidocephalichthys)
- ?tombazii Whitley, 1936 (Indomanta)
- ?tombil Valenciennes, 1850 (Saurida)
- tomcod Lee et al., 1980 (Microgadus)
- tomcod Walbaum, 1792 (Gadus), see Microgadus tomcod
- tomcodus Mitchill, 1814 (Gadus), see Gadus morhua
- tomcooni Parenti, 1984 (Orestias)
- tome (Sphyraena)
- tomentosis Clarke, 1998 (Eustomias)
- tomentosus Fraser-Brunner, 1941 (Acreichthys)
- tomentosus Linnaeus, 1758 (Balistes), see Acreichthys tomentosus
- Tometes Valenciennes in Cuvier & Valenciennes, 1849 (Myleinae), see Myleus
- Tomeurus Eigenmann, 1909 (Poeciliinae)
- tomi Ng & Kottelat, 1994 (Betta)
- tomianus Ruzsky, 1920 (Nemacheilus barbatulus), see Nemacheilus toni
- Tomicodon Brisout de Barneville, 1846 (Gobiesocinae)
- tomiensis L©vªque & Daget, 1984 (Barbus)
- Tominanga Kottelat, 1990 (Telmatherinidae)
- tominiensis Randall, 1955 (Ctenochaetus)
- tomiyamai Okamura, 1984 (Nezumia)
- tomiyamai Okamura, 1963 (Lionurus), see Nezumia tomiyamai
- Tomiyamichthys Smith, 1956 (Gobiidae)
- Tomocichla Regan, 1908 (Cichlidae)
- tompkinsae Andriashev, 1992 (Paraliparis)
- Tondanichthys Collette, 1995 (Hemiramphidae)
- ?tongae Gìnther, 1880 (Mugil)
- tongaensis Rendahl, 1935 (Barbus)
- tongaensis Rendahl, 1935 (Labeo)
- tongaensis Smith-Vaniz, 1987 (Meiacanthus)
- tongaensis Rofen, 1958 (Kraemeria)
- Tongaichthys Nakamura & Fujii, 1983 (Gempylidae)
- tonganus (Scartella)
- tonganus Bath, 1966 (Blennius), see Scartella tonganus
- tonganus Jordan & Seale, 1906 (Blennius), see Scartella tonganus
- tonganus Whitley, 1930 (Dubiblennius), see Scartella tonganus
- tongarevae Prince Akihito, 1984 (Cabillus)
- tongarevae Fowler, 1927 (Glossogobius), see Cabillus tongarevae
- tonggol Gibbs & Collette, 1967 (Thunnus)
- ?tonggol Bleeker, 1846 (Arius)
- tonggol Bleeker, 1851 (Thynnus), see Thunnus tonggol
- toni ( Barbatulabarbatula)
- toni Sawada, 1984 (Nemacheilus)
- toni Dybowski, 1869 (Cobitis), see Nemacheilus toni
- tonkinensis Pellegrin & Chevey, 1935 (Sinogastromyzon)
- tonkinensis Chen & Li, 1989 (Acheilognathus)
- tonkinensis (Labeo)
- ?tonkinensis Chabanaud, 1927 ( Taenioidesgracilis)
- ?tonkinensis Mai, 1978 (Perccottus)
- tonkinensis (Puntius), see Mylopharyngodon piceus
- tonkinensis Pellegrin & Chevey, 1934 (Varicorhinus), see Labeo tonkinensis
- tonkinensis Rendahl, 1937 (Misgurnus mizolepis), see Misgurnus mizolepis
- tonkinensis Sauvage, 1884 (Barbus), see Mylopharyngodon piceus
- tonkinensis Vaillant, 1892 (Acanthorhodeus), see Acheilognathus tonkinensis
- tonkinensis Wu et al., 1977 (Sinilabeo), see Labeo tonkinensis
- tonlesapensis Roberts & Kottelat, 1984 (Thryssocypris)
- tonsor (Serranus)
- tonstrinum Randall & Taylor, 1988 (Liopropoma)
- topavae Isbrìcker, 1980 (Hypostomus)
- topavae Godoy, 1969 (Plecostomus), see Hypostomus topavae
- topeka Gilbert, 1978 (Notropis)
- topeka Gilbert, 1884 (Cliola), see Notropis topeka
- topeka Gilbert, 1884 (Hybopsis), see Notropis topeka
- toporovanicus Kamensky, 1899 (Barbus), see Barbus lacerta
- toposericus Pravdin, 1950 (Coregonus lavaretus pravdinianus nat. ), see Coregonus lavaretus pravdinianus
- ?toposui Hamilton, 1822 (Polynemus)
- topozeri Novikov, 1947 (Coregonus albula nat. ), see Coregonus albula
- toppini Boulenger, 1916 (Barbus)
- Tor Gray, 1834 (Cyprinidae)
- tor Wu et al., 1977 (Tor)
- tor Hamilton, 1822 (Cyprinus), see Tor tor
- Torafugu Abe, 1950 (Tetraodontidae), see Takifugu
- torazame Compagno, 1984 (Scyliorhinus)
- torazame Tanaka, 1908 (Catulus), see Scyliorhinus torazame
- torbesensis Isbrìcker, 1980 (Cordylancistrus)
- torbesensis Schultz, 1944 (Characidium chupa), see Characidium chupa
- torbesensis Schultz, 1944 (Pseudancistrus), see Cordylancistrus torbesensis
- tordilho Reis, 1997 (Lepthoplosternum)
- Torichthys (Cichlidae), see Thorichthys
- tornieri Steindachner, 1906 (Varicorhinus)
- tornieri Ahl, 1922 (Rasbora), see Rasbora cephalotaenia
- torobo Allen, 1985 (Oloplotosus)
- torosus Stewart, 1986 (Aguarunichthys)
- torosus (Tetraodon)
- torosus Larraáaga, 1923 (Tetrodon), see Tetraodon torosus
- torotai Russell & Randall, 1981 (Pseudolabrus)
- Torpedinidae (Rajiformes)
- Torpedininae (Torpedinidae)
- torpedinus Desmarest, 1823 (Trygonobatus), see Urolophus jamaicensis
- Torpedo Houttuyn, 1764 (Torpedininae)
- torpedo Houttuyn, 1764 (Torpedo)
- Torpedo Forssk¥l, 1775 (Malapteruridae), see Malapterurus
- torpedo Blainville, 1816 (Narcobatus), see Torpedo torpedo
- torpedo Linnaeus, 1758 (Raja), see Torpedo torpedo
- torquata Lowe, 1843 (Julis turcica var. ), see Thalassoma pavo
- torquatus Fowler (Myleus)
- torquatus Randall, Allen & Steene, 1990 (Cymolutes)
- ?torquatus Walbaum, 1792 (Labrus)
- torquatus (Scolopsis), see Scolopsis vosmeri
- torquatus Bloch & Schneider, 1801 (Labrus bifasciatus var. ), see Thalassoma bifasciatum
- torquatus Cuvier, 1830 (Scolopsides), see Scolopsis vosmeri
- torquatus Kner, 1858 (Myletes), see Myleus torquatus
- torquatus Mìller & Henle (ex Valenciennes), 1839 (Scymnus brasiliensis var. ), see Isistius brasiliensis
- torquatus Parr, 1930 (Halichoeres irideus), see Halichoeres radiatus
- torquatus Valenciennes, 1840 (Xyrichthys), see Cymolutes torquatus
- Torquigener Whitley, 1930 (Tetraodontidae)
- torralbasi Rosen & Bailey, 1963 ( Girardinusuninotatus)
- torralbasi ( Herichthystetracanthus)
- torralbasi Eigenmann, 1903 (Glaridichthys), see Girardinus uninotatus torralbasi
- torralbasi Eigenmann, 1903 (Heros tetracanthus), see Herichthys tetracanthus torralbasi
- torrei Howell Rivero, 1936 (Scyliorhinus)
- torrei Howell Rivero, 1932 (Chrinorhinus), see Neoconger mucronatus
- torrei Nichols, 1912 (Siphostoma), see Doryichthys deokhatoides
- Torrentaria Jordan & Evermann, 1896 (Etheostomatinae), see Etheostoma
- torrenticola Vermeulen & Isbrucker, 2000 (Rivulus)
- torrenticola Mahnert & G©ry, 1988 (Piabarchus)
- torrenticola Roberts & Kullander, 1994 (Schwetzochromis)
- torrenticola Oyakawa, 1993 (Harttia)
- torrenticola Thys van den Audenaerde, 1963 (Haplochromis), see Schwetzochromis torrenticola
- torrentis Hoese & Allen, 1990 (Glossogobius)
- torrentius Jordan & Seale, 1906 (Microphis), see Microphis retzii
- Torresia Castelnau, 1875 (Bodianinae), see Choerodon
- ?torresiensis Castelnau, 1875 (Apogon)
- torresiensis De Vis, 1889 (Clupea), see Herklotsichthys quadrimaculatus
- torridus Cope, 1871 (Lutjanus), see Lutjanus vivanus
- torsk Bonnaterre, 1788 (Gadus), see Brosme brosme
- torsk Lacep¨de, 1800 (Blennius), see Brosme brosme
- tortonesei Miller, 1969 (Pomatoschistus)
- tortonesei Capap©, 1975 (Dasyatis)
- tortonesei Banarescu & Nalbant, 1966 (Nemacheilus), see Nemacheilus insignis
- tortonesei Banarescu & Nalbant, 1966 (Noemacheilus insignis), see Nemacheilus insignis
- ?tortugae Jordan & Thompson, 1905 (Holocentrus)
- ?tortugae Hildebrand, 1946 (Emblemaria)
- tortugae Cervigãn, 1994 (Coryphopterus), see Coryphopterus glaucofraenum
- tortugae Hildebrand, 1940 (Neomerinthe), see Neomerinthe hemingwayi
- tortugae Jordan, 1904 (Ctenogobius), see Coryphopterus glaucofraenum
- tortugarum Longley, 1935 (Serranus)
- tortuguerae Bæhlke, 1958 (Hyphessobrycon)
- tortuosus Eigenmann & Norris, 1900 (Parodon)
- torvus Iwamoto, 1990 ( Hymenocephalusstriatissimus)
- torvus Garman, 1899 (Monomitopus)
- torvus Poss, 1986 (Congiopodus)
- torvus Goode & Bean, 1883 (Cottunculus), see Cottunculus thomsonii
- torvus Gronow, 1772 (Blennius), see Congiopodus torvus
- torvus Gronow, 1854 (Cynaedus), see Chrysoblephus laticeps
- torvus Jenyns, 1841 (Caranx), see Selar crumenophthalmus
- toryamensis Yabe, 1984 (Ricuzenius)
- tosae Kishimoto, 1984 (Uranoscopus)
- tosae Jordan & Hubbs, 1925 (Zalescopus), see Uranoscopus tosae
- tosaensis Cohen, 1979 (Lotella)
- tosaensis Okamura & Oryuu, 1984 (Chaunax)
- tosaensis Kamohara, 1934 (Owstonia)
- tosaensis Kamohara, 1936 (Physiculus), see Lotella tosaensis
- Tosana Smith & Pope, 1906 (Anthiinae)
- tosana Amaoka, 1963 (Psettina)
- Tosanoides Kamohara, 1953 (Anthiinae)
- Tosarhombus Amaoka, 1969 (Bothidae)
- tosensis Russell, 1990 (Parascolopsis)
- tosensis Kamohara, 1938 (Scolopsis), see Parascolopsis tosensis
- toshi Whitley, 1933 (Scarus), see Scarus ghobban
- toshi Whitley, 1939 (Himantura), see Dasyatis uarnak
- Toshia Whitley, 1933 (Dasyatinae), see Dasyatis
- toshimaensis Fukao, 1980 (Neoclinus)
- totacinerea (Muraena)
- totae Miles, 1942 (Trichomycterus)
- totae Miles, 1942 (Bathophilus), see Trichomycterus totae
- totae Miles, 1942 (Pygidium), see Trichomycterus totae
- totae Miles, 1943 (Rhizosomichthys), see Trichomycterus totae
- totae Whitley, 1947 (Bathypygidium), see Trichomycterus totae
- totara Curtiss, 1938 (Diodon), see Diodon hystrix
- Totoaba Villamar, 1980 (Sciaenidae)
- totomiensis Tanaka, 1908 (Owstonia)
- ?totomius Jordan & Starks, 1904 (Pseudoblennius)
- tototaensis Romand, 1978 (Epiplatys fasciolatus), see Epiplatys fasciolatus
- tototaensis Romand, 1978 (Epiplatys), see Epiplatys fasciolatus
- tototaensis Romand, 1992 (Epiplatys fasciolatus), see Epiplatys fasciolatus
- ?totoyensis Garman, 1903 (Gobioides)
- totta Cuvier, 1829 (Equula), see Leiognathus equulus
- toucounarai Castelnau, 1855 (Cycla), see Cichla monoculus
- tourei Daget, 1962 (Synodontis)
- tournieri Thys, 1968 (Sarotherodon)
- tournieri Daget, 1965 (Tilapia), see Sarotherodon tournieri
- touteei Pellegrin, 1906 (Distichodus), see Distichodus engycephalus
- tovari Dahl, 1960 (Brycon), see Brycon meeki
- toweri Hubbs & Turner, 1939 (Ataeniobius)
- toweri Meek, 1904 (Goodea), see Ataeniobius toweri
- townleyi De Vis, 1884 (Chaetodon), see Parachaetodon ocellatus
- townsendi Fowler, 1900 (Brotula)
- townsendi Robins & Ray, 1986 (Apogon)
- townsendi Dor, 1984 (Plagiotremus)
- townsendi Boulenger, 1901 (Parascolopsis)
- townsendi Randall, 1995 (Pseudanthias)
- townsendi Boulenger, 1897 (Anthias), see Pseudanthias townsendi
- townsendi Boulenger, 1897 (Gobius), see Trimma winterbottomi
- townsendi Boulenger, 1898 (Epinephelus), see Epinephelus erythrurus
- townsendi Breder, 1927 (Amia), see Apogon townsendi
- townsendi Duncker, 1915 (Ichthyocampus), see Festucalex erythraeus
- townsendi Eigenmann & Eigenmann, 1889 (Gobius), see Gillichthys mirabilis
- townsendi Eigenmann & Eigenmann, 1889 (Myctophum), see Ceratoscopelus warmingii
- townsendi Nichols & Mowbray, 1914 (Angelichthys), see Holacanthus bermudensis
- townsendi Paxton, 1979 (Ceratoscopelus), see Ceratoscopelus warmingii
- townsendi Regan, 1905 (Petroscirtes), see Plagiotremus townsendi
- townsendi Regan, 1905 (Platycephalus), see Rogadius prionotus
- towoetii Ladiges, 1972 (Nomorhamphus)
- Toxabramis Gìnther, 1873 (Cyprinidae)
- toxeuma Fowler, 1904 (Sphyraena), see Sphyraena forsteri
- toxeuma Smith, 1956 (Callosphyraena), see Sphyraena forsteri
- toxostoma Elvira, 1987 (Chondrostoma), see Chondrostoma genei
- toxostoma Kottelat, 1997 (Chondrostoma), see Chondrostoma genei
- toxostoma Vallot, 1837 (Cyprinus), see Chondrostoma genei
- Toxotes Cuvier, 1816 (Toxotidae)
- toxotes Agassiz, 1854 (Rhacochilus)
- Toxotidae (Perciformes)
- Toxus Eigenmann, 1903 (Poeciliinae), see Girardinus
- toyamensis Anderson, 1994 (Lycodes)
- toyamensis Katayama, 1941 (Petroschmidtia), see Lycodes toyamensis
- toyamensis Matsubara & Iwai, 1951 (Alloricuzenius), see Ricuzenius toryamensis
- toyamensis Matsubara & Iwai, 1951 (Ricuzenius), see Ricuzenius toryamensis
- trabeatus Richardson, 1843 (Eleotris), see Valenciennea muralis
- traceyi Allen, 1991 (Chrysiptera)
- traceyi Woods & Schultz, 1960 (Pomacentrus), see Chrysiptera traceyi
- trachacanthus Valenciennes, 1840 (Bagrus), see Mystus menoda
- Trachelochismus Brisout de Barneville, 1846 (Gobiesocinae)
- Trachelocirrhus Doëmet, 1863 (Nomeidae), see Cubiceps
- Trachelyichthys Mees, 1974 (Auchenipteridae)
- Trachelyopterichthys Bleeker, 1862 (Auchenipteridae)
- Trachelyopterus Valenciennes in Cuvier & Valenciennes, 1840 (Auchenipteridae)
- trachiaphas (Cyprinus)
- Trachicephalus Swainson, 1839 (Synanceiinae)
- Trachichthodes Gilchrist, 1903 (Berycidae), see Centroberyx
- Trachichthyidae (Beryciformes)
- Trachichthys Shaw in Shaw & Nodder, 1799 (Trachichthyidae)
- Trachidermus Heckel, 1837 (Cottidae)
- Trachinidae (Perciformes)
- Trachinocephalus Gill, 1861 (Synodontinae)
- ?trachinoides Cuvier, 1829 (Apistus)
- Trachinoides Borodin, 1934 (Merlucciinae), see Merluccius
- trachinoides Swainson, 1839 (Trichosomus), see Apistus trachinoides
- Trachinops Gìnther, 1861 (Plesiopinae)
- Trachinotus Lacep¨de, 1801 (Carangidae)
- Trachinus Linnaeus, 1758 (Trachinidae)
- ?trachinus Cuvier, 1829 (Malacanthus)
- ?trachinus Bloch & Schneider, 1801 (Trigla)
- trachinus Temminck & Schlegel, 1846 (Saurus), see Trachinocephalus myops
- ?trachipomus Valenciennes, 1840 (Bagrus)
- Trachipteridae (Lampridiformes)
- Trachipterus Goìan, 1770 (Trachipteridae)
- trachipterus Nakamura, 1986 (Cepola), see Trachipterus trachypterus
- Trachonurus Gìnther, 1887 (Macrourinae)
- trachops Wisner, 1974 (Diaphus)
- trachouros Nakaya, 1984 (Bathyraja)
- trachouros Ishiyama, 1958 (Breviraja), see Bathyraja trachouros
- trachura Collette & Parin, 1970 ( Platybeloneargalus)
- trachura Eschmeyer & Herald, 1983 (Bathyraja)
- trachura Bertin, 1925 (Pygosteus pungitius f. ), see Pungitius pungitius
- trachura Gilbert, 1892 (Raia), see Bathyraja trachura
- trachura Valenciennes, 1846 (Belone), see Platybelone argalus trachura
- Trachurops Gill, 1862 (Carangidae), see Selar
- Trachurus Rafinesque, 1810 (Carangidae)
- trachurus Gronow, 1854 (Trachurus)
- trachurus Berg, 1949 (Platichthys flesus), see Platichthys flesus
- trachurus Cuvier, 1829 (Gasterosteus), see Gasterosteus aculeatus
- trachurus Duncker, 1892 (Pleuronectes flesus var. ), see Platichthys flesus
- trachurus Linnaeus, 1758 (Scomber), see Trachurus trachurus
- trachurus Pallas, 1814 (Cottus), see Hemilepidotus hemilepidotus
- trachyacron Bleeker, 1863 (Myripristis)
- trachyacron Greenfield, 1974 (Archaeomyripristis), see Myripristis trachyacron
- Trachyberyx Roule, 1929 (Bramidae), see Taractes
- Trachybrama Bleeker, 1863 (Cyprinidae), see Acanthobrama
- trachycephalus Trewavas, 1977 (Johnius)
- trachycephalus Eschmeyer et al., 1979 (Minous)
- Trachycephalus De Vis, 1884 (Caracanthidae), see Caracanthus
- trachycephalus Bleeker, 1851 (Corvina), see Johnius trachycephalus
- trachycephalus Bleeker, 1854 (Aploactis), see Minous trachycephalus
- Trachycorystes Bleeker, 1858 (Auchenipteridae)
- trachycorystes Bleeker, 1858 (Trachycorystes)
- trachycorystes Valenciennes, 1840 (Auchenipterus), see Trachycorystes trachycorystes
- trachyderma Bleeker, 1865 (Paraploactis)
- trachyderma (Krefft & Stehmann, 1975) (Raja)
- trachyderma Bleeker, 1860 (Monacanthus), see Paramonacanthus japonicus
- trachyderma Krefft & Stehmann, 1975 (Dipturus), see Raja trachyderma
- Trachydoras Eigenmann, 1925 (Doradidae)
- Trachyglanis Boulenger, 1902 (Doumeinae)
- Trachymochlus (Auchenipteridae)
- trachynis Richardson, 1842 (Synanceia), see Synanceia horrida
- ?trachypareia Bleeker, 1864 (Xiphasia)
- trachyparia Burgess, 1989 (Trachydoras)
- trachyparia Boulenger, 1898 (Oxydoras), see Trachydoras trachyparia
- Trachypoma Gìnther, 1859 (Serranidae)
- trachypoma Uyeno & Sato, 1983 (Ostichthys)
- Trachypoma Giebel, 1871 (Trichomycterinae), see Eremophilus
- trachypoma Gìnther, 1859 (Myripristis), see Ostichthys trachypoma
- trachypoma Gìnther, 1884 (Syngnathus), see Halicampus grayi
- trachyptera Gmelin, 1789 (Cepola), see Trachipterus trachypterus
- Trachypterophrys Franz, 1910 (Bothinae), see Chascanopsetta
- trachypterus Boulenger, 1915 (Barbus)
- trachypterus Goìan, 1770 (Trachipterus)
- Trachypterus Bloch & Schneider, 1801 (Trachipteridae), see Trachipterus
- Trachyrhamphus Kaup, 1853 (Syngnathynae)
- trachyrhynchus Gìnther, 1870 (Syngnathus), see Trachyrhamphus serratus
- trachyrhynchus Marshall, 1973 (Trachyrhynchus), see Trachyrincus scabrus
- Trachyrincinae (Macrouridae)
- trachyrincum Swainson, 1839 (Lepidosoma), see Trachyrincus scabrus
- Trachyrincus Giorna, 1809 (Trachyrincinae)
- trachyrincus Giorna, 1809 (Trachyrincus), see Trachyrincus scabrus
- trachyrincus Risso, 1810 (Lepidoleprus), see Trachyrincus scabrus
- trachys Randall, 1975 (Ostracion)
- Trachyscorpia Ginsburg, 1953 (Scorpaeninae)
- trachysoma Gilbert & Burke, 1912 (Careproctus)
- trachystetha Fowler, 1906 (Steindachnerina), see Steindachnerina bimaculata
- trachystethus Cope, 1878 (Curimatus), see Steindachnerina bimaculata
- ?trachyurus (Poey, 1861) (Trachipterus)
- trachyurus Poey, 1861 (Trachypterus), see Trachipterus trachyurus
- tractus Dor, 1984 ( Aspidontustaeniatus)
- tractus Poey, 1860 (Acanthurus), see Acanthurus bahianus
- Tragularius Matsui & Rosenblatt, 1987 (Platytroctidae), see Mentodus
- Tragulichthys Whitley, 1931 (Diodontidae)
- trahira Spix, 1829 (Erythrinus), see Hoplias malabaricus
- trailli Waite, 1899 (Paratrachichthys)
- trailli Hutton, 1875 (Trachichthys), see Paratrachichthys trailli
- Tramitichromis Eccles & Trewavas, 1989 (Cichlidae)
- trangensis (Doi, 1997) (Lobocheilus)
- trangensis Doi, 1997 (Lobocheilos), see Lobocheilus trangensis
- trangensis Fowler, 1939 (Tylognathus), see Lobocheilus trangensis
- ?tranquebar Lacep¨de, 1803 (Mugil)
- tranquebar Lacep¨de, 1801 (Aspidophoroides), see Aspidophoroides monopterygius
- tranquebaricus Shaw, 1803 (Sparus), see Lutjanus johnii
- transandeanus Gìnther, 1861 (Gobius), see Awaous banana
- transandeanus Ortega & Vari, 1986 (Awaous), see Awaous banana
- transandianum Steindachner, 1915 (Pygidium taenia var. ), see Trichomycterus taenia transandianus
- transandianus Burgess, 1989 ( Trichomycterustaenia)
- transcaspiensis Berg, 1898 (Squalius), see Leuciscus latus
- transcaucasica Berg, 1916 (Blicca bjoerkna), see Blicca bjoerkna
- transcaucasica Berg, 1949 (Blicca bjoerkna), see Blicca bjoerkna
- transcaucasicus Warpakhovskii, 1896 (Aspius), see Aspius aspius
- transcriptus Matthes, 1959 (Julidochromis)
- transgrediens Huber, 1996 ( Aphaniusanatoliae)
- transgrediens Aksiray, 1948 (Anatolichthys), see Aphanius anatoliae transgrediens
- transgrediens Ermin, 1946 (Turkichthys), see Aphanius anatoliae transgrediens
- transiens Herzenstein, 1888 (Nemacheilus), see Nemacheilus strauchii
- transiens Herzenstein, 1888 (Nemachilus strauchii), see Nemacheilus strauchii
- transiens Klunzinger, 1871 (Salarias quadricornis var. ), see Istiblennius rivulatus
- transilis Myers, 1932 (Austrofundulus)
- transitoria Miranda-Ribeiro, 1907 (Pimelodella)
- ?translimitanus Whitley, 1933 ( Caesiochrysozonus)
- trans-lineatus Fowler, 1939 (Nemacheilus), see Nemacheilus selangoricus
- translineatus Fowler, 1939 (Nemacheilus), see Nemacheilus selangoricus
- translucens Paxton et al., 1989 (Harpadon)
- translucens Nichols, 1915 (Gobius), see Coryphopterus glaucofraenum
- translucens Saville-Kent, 1889 (Harpodon), see Harpadon translucens
- translucida Roberts, 1986 (Danionella)
- translucidus McCulloch, 1917 (Hyperlophus)
- translucidus Whitley, 1936 (Hyalosprattus), see Hyperlophus translucidus
- transmontana (Anabarilius)
- transmontana Lee et al., 1980 (Percopsis)
- transmontana Banarescu, 1971 (Hemiculterella), see Anabarilius transmontana
- transmontana Eigenmann & Eigenmann, 1892 (Columbia), see Percopsis transmontana
- transmontana Nichols, 1925 (Ischikauia), see Anabarilius transmontana
- transmontana Whitley, 1940 (Columatilla), see Percopsis transmontana
- transmontana Yih & Wu, 1964 (Rohanus), see Anabarilius transmontana
- transmontanus Richardson (ex Gairdner), 1836 (Acipenser)
- transmontanus Allen, 1991 (Hephaestus)
- transmontanus Regan, 1913 ( Pseudopimelodusraninus)
- ?transmontanus Cope, 1879 (Rhinichthys)
- transmontanus Chu, 1935 (Rohanus), see Anabarilius transmontana
- transmontanus Mees & Kailola, 1977 (Therapon), see Hephaestus transmontanus
- transpacificus McAllister, 1963 (Hypomesus)
- transparentus Klausewitz, 1958 (Ctenogobius), see Coryphopterus glaucofraenum
- transvaalensis Methuen, 1911 (Labeo), see Labeo rosae
- transvaaliensis van der Horst, 1931 (Amphilius), see Amphilius uranoscopus
- transversalis (Synbranchus)
- transversalis Whitley, 1956 (Choerodon), see Choerodon graphicus
- transversefasciatus Wu & Zhou, 1990 (Chaenogobius)
- transversum Abbott, 1860 (Poecilosoma), see Etheostoma caeruleum
- transversus Cuvier, 1829 (Therapon), see Terapon theraps
- transvestitus Stewart & Roberts, 1984 (Nanochromis)
- traorei L©vªque, Teugels & Thys van den Audenaerde, 1987 (Barbus)
- tras Herre, 1953 (Puntius)
- tras (Barbus), see Puntius tras
- tras Herre, 1926 (Barbodes), see Puntius tras
- trasandeanus Espinosa P©rez et al., 1993 (Gobius), see Awaous banana
- trasimenicus Bonaparte, 1837 (Leuciscus), see Rutilus rubilio
- traski Page & Burr, 1991 (Hysterocarpus), see Hysterocarpus traskii
- traskii Gibbons, 1854 (Hysterocarpus)
- traudeae ( Fundulopanchaxmirabilis)
- traudeae Huber, 1978 (Aphyosemion), see Fundulopanchax mirabilis traudeae
- traudeae Kottelat, 1976 (Paraphyosemion mirabile), see Fundulopanchax mirabilis traudeae
- traudeae Radda, 1971 (Aphyosemion mirabile), see Fundulopanchax mirabilis traudeae
- trautmani Taylor, 1969 (Noturus)
- trautmani Hubbs & Crowe, 1956 (Hybopsis x-punctata), see Hybopsis x-punctata
- trautmani Hubbs & Crowe, 1956 (Hybopsis xpunctata), see Hybopsis x-punctata
- trautvetteri Kessler, 1859 (Gobius), see Neogobius syrman
- travale Castelnau, 1872 (Neptonemus), see Seriolella brama
- Travancoria Hora, 1941 (Balitorinae)
- travancoria Hora & Law, 1941 (Batasio)
- travancoricus (Hora & Nair, 1941) (Tetraodon)
- travancoricus Hora & Nair, 1941 (Monotretus), see Tetraodon travancoricus
- travassosi Garavello, Britski & Schaefer, 1998 (Otothyris)
- travassosi Bizerril, 1994 (Trichomycterus)
- travassosi Amaral Campos, 1950 (Brycon), see Brycon orbignyanus
- travassosi Miranda-Ribeiro, 1949 (Pygidium), see Trichomycterus travassosi
- travassosi Pinto, 1960 (Suiboga), see Awaous tajasica
- traversi Vreven & Teugels, 1997 (Aethiomastacembelus)
- traversi Hutton, 1872 (Cyttus)
- traversi Gill, 1893 (Rhombocyttus), see Cyttus traversi
- treadwelli Pellegrin, 1933 (Barbus), see Barbus miolepis
- trecae Cadenat, 1950 (Trachurus)
- treculi Page & Burr, 1991 (Dioplites nuecensis), see Micropterus treculii
- treculii Lee et al., 1980 (Micropterus)
- treculii Dum©ril, 1870 (Lepisosteus), see Lepisosteus osseus
- treculii Vaillant & Bocourt, 1883 (Dioplites nuecensis), see Micropterus treculii
- tredecemradiatus (Periophthalmodon)
- tredecemradiatus Hamilton, 1822 (Gobius), see Periophthalmodon tredecemradiatus
- tredecimspinosa Metzelaar, 1919 (Scorpaena), see Scorpaenodes tredecimspinosus
- tredecimspinosus Eschmeyer, 1969 (Scorpaenodes)
- tredecimspinosus Gìnther, 1862 (Cossyphus), see Bodianus speciosus
- treitlii Steindachner, 1906 (Corydoras)
- Trematina Trautschold, 1884 (Esocidae), see Esox
- Trematocara Boulenger, 1899 (Cichlidae)
- trematocephala Eccles & Trewavas, 1989 (Aulonocara)
- trematocephala Boulenger, 1901 (Tilapia), see Aulonocara trematocephala
- Trematochromis Poll, 1987 (Cichlidae)
- Trematocranus Trewavas, 1935 (Cichlidae)
- Trematomus Boulenger, 1902 (Nototheniidae)
- Trematopsis Ranzani, 1839 (Molidae), see Mola
- tremebundus Kido, 1992 (Paraliparis)
- tremebundus Gilbert & Burke, 1912 (Elassodiscus), see Paraliparis tremebundus
- tremebundus Jordan & Snyder, 1902 (Halichoeres), see Halichoeres tenuispinis
- tremens de Buen, 1959 (Torpedo)
- ?trementinae Eigenmann & Kennedy, 1903 (Odontostilbe)
- tremulus Houttuyn, 1764 (Gymnotus), see Gymnotus carapo
- trepidans Valenciennes, 1843 (Torpedo), see Torpedo marmorata
- tretocephalus Colombe & Allgayer, 1985 (Neolamprologus)
- tretocephalus Boulenger, 1899 (Lamprologus), see Neolamprologus tretocephalus
- treurensis Groenewald, 1958 (Barbus)
- trevelyani Gìnther, 1877 (Barbus)
- trevelyani Regan, 1908 (Salvelinus)
- trewavasae Ben-Tuvia, 1993 (Rhynchoconger)
- trewavasae Parenti, 1986 (Phenacostethus)
- trewavasae Poll & Gosse, 1963 (Neolebias)
- trewavasae Mirza & Ahmad, 1990 (Triplophysa)
- trewavasae Monod, 1950 (Garra)
- trewavasae Konings, 1999 (Copadichromis)
- trewavasae Fryer, 1956 (Labeotropheus)
- trewavasae Poll, 1948 (Petrochromis)
- trewavasae Stiassny, 1989 (Tylochromis)
- trewavasae Talwar & Sathirajan, 1975 (Atrobucca)
- trewavasae Sasaki, 1992 (Johnius)
- trewavasae (Protosciaena)
- trewavasae Chabanaud, 1948 (Symphurus)
- trewavasae Hora, 1919 (Glyptothorax)
- trewavasae Gibbs, 1986 (Eustomias)
- ?trewavasae Bertelsen, 1978 (Linophryne)
- trewavasae Chao & Miller, 1975 (Sciaena), see Protosciaena trewavasae
- trewavasae Norman, 1930 (Nominostomias), see Eustomias trewavasae
- trewavasae Poll, 1939 (Tilapia), see Oreochromis leucostictus
- trewavasae Poll, 1954 (Epigonus), see Epigonus constanciae
- trewavasai Monod, 1950 (Garra), see Garra trewavasae
- Trewavasia Thys van den Audenaerde, 1969 (Cichlidae), see Tilapia
- tri Whitehead et al., 1988 (Stolephorus)
- tri Bleeker, 1852 (Engraulis), see Stolephorus tri
- ?triacantha Lacep¨de, 1802 (Perca)
- ?triacantha Bowdich, 1825 (Chromis)
- Triacanthidae (Tetraodontiformes)
- Triacanthodes Bleeker, 1858 (Triacanthodidae)
- Triacanthodidae (Tetraodontiformes)
- Triacanthurodes Fowler, 1944 (Prionurinae), see Prionurus
- Triacanthus Oken (ex Cuvier), 1817 (Triacanthidae)
- triacanthus Haedrich, 1967 (Peprilus)
- triacanthus Gilbert, 1903 (Xeneretmus)
- triacanthus Lacep¨de, 1802 (Taenianotus)
- triacanthus Fowler, 1934 (Halimochirurgus), see Halimochirurgus alcocki
- triacanthus Fowler, 1938 (Sebastiscus), see Hozukius emblemarius
- triacanthus Gilbert, 1890 (Xenochirus), see Xeneretmus triacanthus
- triacanthus Kanayama, 1991 (Xenertmus), see Xeneretmus triacanthus
- triacanthus Lacep¨de, 1802 (Holocentrus), see Holocentrus striatus
- triacanthus Parr, 1930 (Scorpaenodes), see Scorpaenodes caribbaeus
- triacanthus Peck, 1804 (Stromateus), see Peprilus triacanthus
- triacanthus Rafinesque, 1815 (Panotus), see Taenianotus triacanthus
- triacanthus Swainson, 1839 (Argyriosus), see Selene vomer
- triacanthus Valenciennes, 1833 (Nauclerus), see Naucrates ductor
- triacis Starks & Mann, 1911 (Orthonopias)
- Triacis Agassiz, 1846 (Triakinae), see Triakis
- triactis Isbrìcker, Nijssen & Nico, 1992 (Leporacanthicus)
- triactis Klunzinger, 1871 (Istiophorus), see Istiophorus platypterus
- Triaenodon Mìller & Henle, 1837 (Carcharhinidae)
- triaenodon Eccles & Trewavas, 1989 (Protomelas)
- triaenodon Trewavas, 1935 (Haplochromis), see Protomelas triaenodon
- Triaenophorichthys Gill, 1859 (Gobiinae), see Tridentiger
- Triaenophorus Gill, 1859 (Gobiinae), see Tridentiger
- Triaenopogon Bleeker, 1874 (Gobiinae), see Tridentiger
- triagramma Steindachner, 1864 (Heros), see Parapetenia salvini
- Triakidae (Carcharhiniformes)
- Triakinae (Triakidae)
- Triakis Mìller & Henle, 1838 (Triakinae)
- trialpha Allen & Randall, 1980 (Chromis)
- Trianectes McCulloch & Waite, 1918 (Tripterygiidae)
- triangularis (Mesonoemacheilus)
- triangularis (Nemacheilus)
- triangularis Okamura & Kawanishi, 1984 (Alepocephalus)
- triangularis Maug©, 1986 (Drombus)
- triangularis Smith, 1964 (Cruriraja)
- triangularis Day, 1865 (Nemacheilus), see Mesonoemacheilus triangularis
- triangularis Kaup, 1860 (Eteira), see Megaprotodon trifascialis
- triangularis Lloyd, 1909 (Malthopsis), see Malthopsis mitrigera
- triangularis Menon, 1987 (Nemacheilus), see Mesonoemacheilus triangularis
- triangularis Menon, 1987 (Noemacheilus), see Mesonoemacheilus triangularis
- triangularis Rìppell, 1829 (Chaetodon), see Megaprotodon trifascialis
- triangularis Stark, 1828 (Pristigaster), see Pristigaster cayana
- triangularis Weber, 1909 (Gobius), see Drombus triangularis
- triangularis Wu, 1939 (Cyprinus carpio var. ), see Cyprinus carpio
- triangulatus Springer, 1959 (Malacoctenus)
- triangulum Cuvier (ex Kuhl & van Hasselt), 1831 (Chaetodon)
- triangulum Bleeker, 1876 (Gonochaetodon), see Chaetodon triangulum
- triangulum Lacep¨de, 1802 (Lutjanus), see Sciaenops ocellatus
- triangulum Reinwardt, 1831 (Chaetodon), see Megaprotodon trifascialis
- triangulus Bath, 1992 (Praealticus)
- triangulus Chapman, 1951 (Alticus), see Praealticus triangulus
- triangulus Valenciennes, 1835 (Acanthurus), see Paracanthurus hepatus
- Triantennatus Schultz, 1957 (Antennariidae), see Antennarius
- Triarcus Waite, 1910 (Maurolicinae), see Maurolicus
- Triathalassothia Fowler, 1943 (Batrachoididae)
- Tribolodon Sauvage, 1883 (Cyprinidae)
- tribranchius Bolin, 1936 (Atopocottus)
- Tribranchus Mìller, 1844 (Anguillidae), see Anguilla
- tribulosus Eschmeyer, 1969 (Scorpaenodes)
- tribulus Cuvier, 1829 (Prionotus)
- tribulus Cuvier, 1829 (Trigla), see Prionotus tribulus
- tricarinatus Dawson, 1977 (Campichthys)
- triceratops Roule & Angel, 1933 (Melamphaes), see Poromitra capito
- Trichidion Gill ex Klein, 1861 (Polynemidae), see Polynemus
- Trichidion Klein, 1776 (Polynemidae), see Polynemus
- ?trichilus Vaillant & Sauvage, 1875 (Mugil)
- ?trichipterus Valenciennes, 1833 (Pteraclis)
- Trichis Plumier in Lacep¨de, 1803 (Clupeidae), see Alosa
- Trichiuridae (Perciformes)
- Trichiurinae (Trichiuridae)
- Trichiurus Linnaeus, 1758 (Trichiurinae)
- trichiurus McAllister, 1990 (Porogadus)
- trichiurus Alcock, 1890 (Dermatorus), see Porogadus trichiurus
- trichiurus Garman, 1899 (Macrurus), see Nezumia convergens
- trichocephalus Shipp, 1971 (Sphoeroides)
- trichocephalus Cope, 1870 (Tetraodon), see Sphoeroides trichocephalus
- Trichochirus Regan & Trewavas, 1930 (Melanostomiinae), see Bathophilus
- Trichocottus Soldatov & Pavlenko, 1915 (Cottidae)
- Trichocyclus Gìnther, 1870 (Diodontidae), see Diodon
- trichodactyllus Nardo, 1827 (Pleuronectes), see Microchirus variegatus
- trichodactylus Linnaeus, 1758 (Pleuronectes), see Monochirus hispidus
- ?trichoderma Bleeker, 1853 (Tetraodon)
- Trichoderma Swainson, 1839 (Monacanthidae), see Amanses
- trichodermato¯des Bleeker, 1854 (Tetraædon), see Tetraodon trichodermatoides
- trichodermatoides (Tetraodon)
- Trichodiodon Bleeker, 1865 (Diodontidae), see Diodon
- Trichodon Tilesius (ex Steller), 1813 (Trichodontidae)
- trichodon Poey, 1875 (Mugil)
- trichodon Tilesius (ex Steller), 1813 (Trichodon)
- trichodon Gistel, 1848 (Chaetichthys), see Trichodon trichodon
- trichodon Pallas, 1814 (Trachinus), see Trichodon trichodon
- trichodon Tilesius, 1813 (Trachinus), see Trichodon trichodon
- Trichodontidae (Perciformes)
- Trichogaster Bloch & Schneider, 1801 (Trichogasterinae)
- Trichogasterinae (Belontiidae)
- Trichogenes Britski & Ortega, 1983 (Trichogeninae)
- Trichogeninae (Trichomycteridae)
- tricholepis Nakamura, 1986 (Mancopsetta)
- tricholepis Norman, 1930 (Achiropsetta), see Mancopsetta tricholepis
- Trichomycteridae (Siluriformes)
- Trichomycterinae (Trichomycteridae)
- trichomycteroides Pellegrin, 1907 (Paramphilius)
- Trichomycterus Valenciennes in Humboldt, 1833 (Trichomycterinae)
- trichonica (Stephanidis, 1974) (Cobitis)
- trichonica Stephanidis, 1974 (Bicanestrinia), see Cobitis trichonica
- trichonis Economidis & Miller, 1990 (Economidichthys)
- Trichonotidae (Perciformes)
- Trichonotops Schultz in Schultz et al., 1960 (Trichonotidae), see Trichonotus
- Trichonotus Bloch & Schneider, 1801 (Trichonotidae)
- Trichonotus Rafinesque, 1815 (Elopidae), see Elops
- Trichopharynx Ogilby, 1898 (Gobiinae), see Awaous
- Trichophasia Swainson, 1839 (Synanceiinae), see Trachicephalus
- Trichopleura Kaup, 1858 (Aploactinidae), see Sthenopus
- Trichopodus (Belontiidae)
- Trichopodus Lacep¨de, 1801 (Trichogasterinae), see Trichogaster
- Trichopsetta Gill, 1889 (Taeniopsettinae)
- Trichopsis Canestrini (ex Kner), 1860 (Trichogasterinae)
- trichopterum Gistel, 1848 (Lithulcus), see Trichogaster trichopterus
- trichopterus Bloch & Schneider, 1801 (Trichogaster)
- Trichopterus Gronow in Gray, 1854 (Cheilodactylidae), see Cheilodactylus
- trichopterus Koelreuter, 1770 (Sparus), see Trichogaster trichopterus
- trichopterus Lacep¨de, 1801 (Trichopodus), see Trichogaster trichopterus
- trichopterus Pallas, 1770 (Labrus), see Trichogaster trichopterus
- Trichopus Shaw, 1803 (Osphronemidae), see Osphronemus
- Trichosoma Swainson, 1838 (Engraulidae), see Thryssa
- trichospilus Berg [C.], 1895 (Achirus)
- Trichostomias Zugmayer, 1911 (Melanostomiinae), see Bathophilus
- trichourus Dor, 1984 (Pomacentrus), see Pomacentrus trichrourus
- trichroistia (Cyprinella)
- trichroistia Gilbert, 1978 (Notropis), see Cyprinella trichroistia
- trichroistia Jordan & Gilbert, 1878 (Codoma), see Cyprinella trichroistia
- trichrourus Gìnther, 1867 (Pomacentrus)
- trichrous Gìnther, 1874 (Chaetodon)
- trichrous Maug© & Bauchot, 1984 (Nesochaetodon), see Chaetodon trichrous
- ?trichurus Bleeker, 1853 (Monacanthus)
- tricincta Yoshino, 1984 (Chrysiptera)
- tricinctus Waite, 1901 (Chaetodon)
- tricinctus Schultz & Welander, 1953 (Amphiprion)
- tricinctus Allen & Randall, 1974 (Glyphidodontops), see Chrysiptera tricincta
- tricinctus Castelnau, 1875 (Chelmo), see Chelmon marginalis
- tricirratus Brìnnich, 1768 (Gadus), see Gaidropsarus mediterraneus
- ?tricirrhata Lacep¨de, 1803 (Cobitis)
- tricirrhitus Kotthaus, 1977 (Bothus)
- Triclonostomias Regan & Trewavas, 1930 (Melanostomiinae), see Eustomias
- tricolor Whitehead et al., 1988 (Anchoa)
- tricolor Lacep¨de, 1802 (Holacanthus)
- tricolor Bleeker, 1847 (Scarus)
- ?tricolor Lortet, 1883 (Leuciscus)
- ?tricolor Haast, 1873 (Leptoscopus), see Leptoscopus huttonii
- tricolor Bloch, 1795 (Chaetodon), see Holacanthus tricolor
- tricolor Bonaparte (ex Commerson), 1831 (Elops), see Gomphosus varius
- tricolor Cope, 1865 (Thymallus), see Thymallus arcticus
- tricolor Cuvier, 1830 (Caesio), see Pterocaesio tile
- tricolor Gill, 1858 (Polycentrus), see Polycentrus schomburgki
- tricolor Gìnther, 1862 (Amphiprion), see Amphiprion rubrocinctus
- tricolor Pellegrin, 1932 (Bedotia), see Bedotia madagascariensis
- tricolor Quoy & Gaimard, 1824 (Gomphosus), see Gomphosus varius
- tricolor Richardson (ex Banks & Solander), 1848 (Muraena), see Gymnothorax ocellatus
- tricolor Smith, 1957 (Ptereleotris), see Ptereleotris evides
- tricolor Spix & Agassiz, 1829 (Engraulis), see Anchoa tricolor
- tricolor Stoye, 1933 (Limia caudofasciata), see Limia melanogaster
- ?tricornis Isbrìcker & Nijssen, 1989 (Hopliancistrus)
- ?tricornis Linnaeus, 1758 (Ostracion)
- tricornis Cloquet, 1817 (Chironectes), see Antennarius striatus
- tricornis Matsubara, 1939 (Ostracoberyx), see Ostracoberyx dorygenys
- tricoti Poll, 1986 (Benthochromis)
- tricoti Poll, 1948 (Haplotaxodon), see Benthochromis tricoti
- Tricropterus Rafinesque, 1810 (Carangidae), see Caranx
- Tricuspidalestes Poll, 1967 (Alestiinae)
- tricuspidata Johnston, 1882 (Girella)
- ?tricuspidata McClelland, 1844 (Muraenesox)
- tricuspidata Dor, 1984 (Odontaspis), see Eugomphodus tricuspidatus
- tricuspidatus (Eugomphodus)
- tricuspidatus (Carcharias), see Eugomphodus tricuspidatus
- tricuspidatus Day, 1878 (Carcharias), see Eugomphodus tricuspidatus
- tricuspidatus Gill, 1859 (Hyporhamphus), see Hyporhamphus unifasciatus
- tricuspidatus Quoy & Gaimard, 1824 (Boops), see Girella tricuspidata
- tricuspidatus Spinola, 1807 (Sparus), see Spicara maena
- tricuspidens (Chelon)
- tricuspidens Schultz, 1946 (Heteromugil), see Chelon tricuspidens
- tricuspidens Smith & Smith, 1986 (Liza), see Chelon tricuspidens
- tricuspidens Smith, 1935 (Mugil), see Chelon tricuspidens
- tricuspidens Smith, 1942 (Austrosparus), see Rhabdosargus holubi
- tricuspis Robins & Ray, 1986 (Gymnocanthus)
- tricuspis (Hollard, 1854) (Paramonacanthus)
- tricuspis Hollard, 1854 (Monacanthus), see Paramonacanthus tricuspis
- tricuspis Hollard, 1854 (Monocanthus), see Paramonacanthus tricuspis
- tricuspis Kro{/yer, 1845 (Phobetor), see Gymnocanthus tricuspis
- tricuspis Reinhardt, 1830 (Cottus), see Gymnocanthus tricuspis
- tridactyla Mees, 1964 (Cheroscorpaena)
- tridactylum Feltes, 1997 (Eleutheronema)
- tridactylus (Salarias), see Andamia amphibius
- tridactylus Bleeker, 1849 (Polynemus), see Eleutheronema tridactylum
- tridactylus Bloch & Schneider (ex Forster), 1801 (Blennius), see Andamia amphibius
- tridactylus Lacep¨de, 1800 (Blennius), see Andamia amphibius
- tridecemlineatus Mitchill, 1825 (Esox), see Esox niger
- tridecem-radiatus DeKay, 1842 (Esox), see Esox niger
- tridecemradiatus DeKay, 1842 (Esox), see Esox niger
- Tridens Eigenmann & Eigenmann, 1889 (Tridentinae)
- tridens Robins, Bæhlke & Robins, 1989 (Dysomma)
- tridens (Limia)
- tridens Eigenmann, 1922 (Hemibrycon)
- tridens Eigenmann, 1907 (Hemigrammus)
- tridens (Lutjanus)
- tridens Araga, 1984 (Phrynelox), see Antennarius striatus
- tridens Hilgendorf, 1889 (Acropoecilia), see Limia tridens
- tridens Hilgendorf, 1889 (Poecilia), see Limia tridens
- tridens Temminck & Schlegel, 1845 (Chironectes), see Antennarius striatus
- Tridensimilis Schultz, 1944 (Tridentinae)
- tridentata Holly, 1929 (Moenkhausia)
- tridentata (Lampetra)
- tridentatus Clark, 1938 (Abudefduf), see Abudefduf sordidus
- tridentifer McCulloch, 1914 (Polyipnus)
- tridentifer Cantor, 1849 (Hemiramphus), see Hyporhamphus limbatus
- tridentifer Richardson, 1846 (Otolithus), see Otolithes ruber
- Tridentiger Gill, 1859 (Gobiinae)
- tridentiger Henn, 1916 (Neoheterandria)
- tridentiger Trewavas, 1935 (Petrotilapia)
- tridentiger Garman, 1895 (Gambusia), see Neoheterandria tridentiger
- tridentiger Garman, 1899 (Myxine), see Myxine glutinosa
- tridentiger Hubbs, 1924 (Allogambusia), see Neoheterandria tridentiger
- tridentiger Nani & Gneri, 1951 (Notomyxine), see Myxine glutinosa
- Tridentinae (Trichomycteridae)
- tridentis Cui & Chu, 1986 (Sinocrossocheilus)
- Tridentopsis Myers, 1925 (Tridentinae)
- tridigitatus Gill, 1859 (Dactyloscopus)
- ?tridigitatus Mitchill, 1814 (Polynemus)
- Tridontochromis Greenwood, 1980 (Cichlidae), see Haplochromis
- tridorsalis Eschmeyer & Allen, 1978 (Neoaploactis)
- triedricum Cuvier, 1818 (Diodon), see Diodon hystrix
- trierythropterus Godoy, 1970 (Astyanax)
- trierythropterus Godoy, 1970 (Astynax), see Astyanax trierythropterus
- Trifarcius Poey, 1860 (Cyprinodontinae), see Cyprinodon
- trifascialis Dor, 1984 (Megaprotodon)
- trifascialis (Chaetodon)
- trifascialis Quoy & Gaimard, 1825 (Chaetodon), see Megaprotodon trifascialis
- trifasciata Allen, 1980 (Melanotaenia)
- trifasciata Popta, 1905 (Rasbora)
- trifasciata Allen, 1991 (Glossamia)
- ?trifasciata (Rafinesque, 1820) (Lepomis)
- ?trifasciata Walbaum, 1792 (Perca)
- trifasciata Alcock, 1894 (Aphoristia), see Symphurus trifasciatus
- trifasciata Bleeker, 1850 (Betta), see Betta picta
- trifasciata Jardine & Schomburgk, 1843 (Cychla), see Cichla ocellaris
- trifasciata Rafinesque, 1820 (Aplites), see Lepomis trifasciata
- trifasciata Rendahl, 1922 (Rhombosoma), see Melanotaenia trifasciata
- trifasciata Storer, 1837 (Hydrargyra), see Fundulus majalis
- trifasciatum (Apistogramma)
- trifasciatum Burgess, 1989 (Cyclopium), see Astroblepus trifasciatus
- trifasciatum Eigenmann, 1912 (Cyclopium), see Astroblepus trifasciatus
- trifasciatus Steindachner, 1876 (Leporinus)
- trifasciatus Steindachner, 1876 (Nannostomus)
- trifasciatus Park, 1797 (Chaetodon)
- trifasciatus Kailola, 1987 (Pomadasys)
- trifasciatus Yamakawa, 1984 (Parupeneus)
- trifasciatus Munroe & Marsh, 1997 (Symphurus)
- trifasciatus Burgess, 1989 (Astroblepus)
- ?trifasciatus Kottelat, 1996 (Puntius)
- ?trifasciatus Cuvier, 1830 (Premnas)
- trifasciatus (Barbus), see Puntius trifasciatus
- trifasciatus Bleeker, 1847 (Glyphisodon), see Amblyglyphidodon curacao
- trifasciatus Bleeker, 1848 (Pristotis), see Amblypomacentrus breviceps
- trifasciatus Burgess, 1978 (Corallochaetodon), see Chaetodon trifasciatus
- trifasciatus Cuvier, 1830 (Amphiprion), see Amphiprion polymnus
- trifasciatus De Vis, 1884 (Pomacentrus), see Dascyllus aruanus
- trifasciatus Eigenmann & Kennedy, 1903 (Biotodoma), see Apistogramma trifasciatum
- trifasciatus Fowler, 1941 (Pseudojulops), see Thalassoma amblycephalus
- trifasciatus Fowler, 1954 (Pintoichthys), see Apistogramma trifasciatum
- trifasciatus Lacep¨de, 1801 (Mullus), see Parupeneus trifasciatus
- trifasciatus Rafinesque, 1810 (Sparus), see Diplodus cervinus
- trifasciatus Schneider, 1801 (Lutianus), see Premnas biaculeatus
- trifasciatus Swainson, 1839 (Pachypterus), see Pseudeutropius atherinoides
- trifasciatus Weber, 1913 (Apogon), see Glossamia trifasciata
- trifasciatus Weber, 1913 (Pseudojulis), see Thalassoma amblycephalus
- trifascigula Fowler, 1935 (Blennius), see Parablennius pilicornis
- trifibulatus Gibbs, Amaoka & Haruta, 1984 (Astronesthes)
- trifilis Kotthaus, 1979 (Neobythites)
- trifilis Gill, 1861 (Pachypops)
- trifilis Mìller & Troschel, 1848 (Micropogon), see Pachypops trifilis
- Trifissus Jordan & Snyder, 1900 (Gobiinae), see Tridentiger
- trifoliatus Kaup, 1860 (Anabas), see Anabas testudineus
- ?trifurca Linnaeus, 1766 (Perca)
- ?trifurcatus Suckow, 1799 (Gadus)
- trifurcatus Castelnau, 1855 (Chalcinus), see Triportheus angulatus
- trifurcatus Shaw, 1803 (Blennius), see Raniceps raninus
- trifurcus Walbaum, 1792 (Gadus raninus var. ), see Raniceps raninus
- trigintaoctoradiata (Clupea)
- ?trigintaoctoradiatus Larraáaga, 1923 (Salmo)
- trigintaoctoradiatus Larraáaga, 1923 (Silurus), see Silurus imberbis
- Trigla Linnaeus, 1758 (Triglinae)
- Triglachromis Poll & Thys van den Audenaerde, 1974 (Cichlidae)
- trigliceps Pellegrin, 1926 (Labeo)
- Triglidae (Scorpaeniformes)
- Triglinae (Triglidae)
- triglo¯des Swainson, 1839 (Dactylopterus), see Chelidonichthys lucerna
- trigloides Bath, 1977 (Paralipophrys)
- trigloides Zander & Jelinek, 1976 (Speleogobius)
- trigloides Yoshino, 1984 (Helcogramma)
- ?trigloides Osbeck, 1770 (Trachinus)
- trigloides Bleeker, 1858 (Tripterygion), see Helcogramma trigloides
- trigloides Lowe, 1843 (Pholis), see Paralipophrys trigloides
- trigloides Swainson, 1839 (Dactylopterus), see Chelidonichthys lucerna
- trigloides Valenciennes, 1836 (Blennius), see Paralipophrys trigloides
- Trigloporus (Triglidae)
- Triglops Reinhardt, 1830 (Cottidae)
- Triglopsis Girard, 1851 (Cottidae)
- ?triglyphus Richardson, 1845 (Crenidens)
- trigona Swainson, 1839 (Lactophrys), see Lactophrys trigonus
- Trigonectes Myers, 1925 (Rivulinae)
- trigonicus Vari, 1978 (Syncomistes)
- trigonocephala Kuhl & van Hasselt, 1829 (Platyptera), see Rhyacichthys aspro
- trigonocephalus Rendahl, 1924 (Tridentiger)
- trigonocephalus Miranda-Ribeiro, 1920 (Sorubim)
- trigonocephalus Gill, 1859 (Triaenophorichthys), see Tridentiger trigonocephalus
- trigonocephalus Gill, 1859 (Triaenophorus), see Tridentiger trigonocephalus
- trigonocephalus Gratzianov, 1902 (Cottus), see Cottus kesslerii
- Trigonognathus Mochizuki & Ohe, 1990 (Etmopterinae)
- Trigonolampa Regan & Trewavas, 1930 (Melanostomiinae)
- Trigonophallus Hubbs, 1926 (Poeciliinae), see Brachyrhaphis
- Trigonostigma (Rasborinae), see Rasbora
- trigonus Robins & Ray, 1986 (Lactophrys)
- trigonus Linnaeus, 1758 (Ostracion), see Lactophrys trigonus
- trigramma Regan, 1913 (Notothenia), see Patagonotothen tessellata
- Trigrammus Gracianov, 1907 (Stichaeidae), see Eumesogrammus
- trigrammus Cope, 1873 (Chirus), see Hexagrammos stelleri
- trigrammus Gìnther, 1862 (Cynoglossus), see Cynoglossus abbreviatus
- triguttata Randall, 1994 (Amblyeleotris)
- triguttatum Burgess, 1989 (Pygidium), see Trichomycterus triguttatus
- triguttatum Eigenmann, 1918 (Pygidium), see Trichomycterus triguttatus
- triguttatus Burgess, 1989 (Trichomycterus)
- Trikeras Harless, 1850 (Rhinopterinae), see Rhinoptera
- trilinearis Kanazawa & Maul, 1967 (Paravocettinops), see Nemichthys scolopacea
- trilineata Steindachner, 1870 (Rasbora)
- trilineata Lãpez & Castello, 1966 (Eigenmannia)
- trilineata Randall & Kay, 1974 (Stethojulis)
- trilineata Carpenter, 1988 (Pterocaesio)
- ?trilineata Popta, 1911 (Haplochilus javanicus var. ), see Oryzias melastigmus
- trilineata Carpenter, 1987 (Squamosicaesio), see Pterocaesio trilineata
- trilineata Fowler & Bean, 1928 (Rhytejulis), see Stethojulis trilineata
- trilineata Randall, 1963 (Lipogramma), see Lipogramma trilineatum
- trilineata Thunberg, 1793 (Perca), see Parapristipoma trilineatum
- trilineata Trewavas, 1931 (Lethrinops), see Tramitichromis trilineatus
- trilineatoides Li, 1984 (Glyptothorax), see Glyptothorax trilineatus
- trilineatum Gilmore & Jones, 1988 (Lipogramma)
- trilineatum Bleeker, 1873 (Parapristipoma)
- trilineatus Castle, 1995 (Bathycongrus)
- trilineatus Boulenger, 1899 (Neolebias)
- trilineatus Wildekamp et al., 1986 (Aphyosemion)
- trilineatus (Simpsonichthys)
- trilineatus Springer, 1972 (Ecsenius)
- trilineatus Eccles & Trewavas, 1989 (Tramitichromis)
- trilineatus Kner, 1868 (Scolopsis)
- trilineatus (Abudefduf)
- trilineatus Cuvier (ex Ehrenberg), 1830 (Pomacentrus)
- trilineatus Cope, 1872 (Corydoras)
- trilineatus Blyth, 1860 (Glyptothorax)
- trilineatus (Balistes)
- ?trilineatus Fraser-Brunner, 1933 ( Genicanthuslamarck)
- ?trilineatus Zheng, 1979 (Leiocassis)
- trilineatus Bloch & Schneider, 1801 (Labrus), see Stethojulis trilineata
- trilineatus Castle, 1964 (Leptocephalus), see Bathycongrus trilineatus
- trilineatus Costa & Brasil, 1994 (Cynolebias), see Simpsonichthys trilineatus
- trilineatus Fowler, 1934 (Lepidaplois), see Bodianus leucosticticus
- trilineatus Griffin, 1933 (Acanthoclinus), see Acanthoclinus littoreus
- trilineatus Ladiges, 1934 (Fundulopanchax), see Aphyosemion trilineatus
- trilineatus Shaw, 1803 (Sparus), see Anthias lineatus
- trilineatus Steindachner, 1866 (Hemiramphus), see Hyporhamphus australis
- trilineatus Whitley, 1955 (Taumakoides), see Acanthoclinus littoreus
- trilobatum Araga, 1984 (Thalassoma)
- trilobatus Lacep¨de, 1801 (Cheilinus)
- trilobatus Nielsen & Bertelsen, 1985 (Saccopharynx)
- trilobatus Seegers, 1996 (Chiloglanis)
- ?trilobatus Lacep¨de, 1802 (Lutjanus)
- trilobatus Lacep¨de, 1801 (Labrus), see Thalassoma trilobatum
- trilobatus Lacep¨de, 1802 (Scarus), see Scarus coeruleus
- trilobatus Pellegrin, 1931 (Hemigrammopetersius), see Micralestes aurantiacus
- trilobodon Andriashev & Neelov, 1979 (Paraliparis)
- Trilobodon Sauvage, 1883 (Cyprinidae), see Tribolodon
- Triloburus Gill, 1861 (Serraninae), see Centropristis
- ?trilobus Balushkin & Fedorov, 1986 (Diceratias)
- ?trilobus Cuvier, 1829 (Blepsias)
- trimaculata (Parapetenia)
- trimaculata Akihito & Meguro, 1975 (Pandaka)
- ?trimaculata Ogilby, 1888 (Coris)
- trimaculata Allen [W. R.], 1942 (Acaronia), see Aequidens tetramerus
- trimaculata Fraser, 1972 (Pristicon), see Apogon trimaculatus
- trimaculata Pellegrin, 1935 (Barbus serrifer var. ), see Barbus pellegrini
- trimaculata Quoy & Gaimard, 1834 (Julis), see Halichoeres trimaculatus
- trimaculata Valenciennes, 1839 (Julis), see Novaculichthys arago
- trimaculatum Conkel, 1993 (Cichlasoma), see Parapetenia trimaculata
- trimaculatus Garavello & Santos, 1992 (Leporinus)
- trimaculatus Winterbottom, 1980 (Pseudanos)
- trimaculatus Peters, 1852 (Barbus)
- trimaculatus Leach, 1814 (Hippocampus)
- trimaculatus (Myxus)
- trimaculatus Cuvier, 1828 (Apogon)
- trimaculatus Eccles & Trewavas, 1989 (Copadichromis)
- trimaculatus Araga, 1984 (Halichoeres)
- trimaculatus Allen, 1980 (Apolemichthys)
- trimaculatus Dor, 1984 (Dascyllus)
- trimaculatus Lee, 1990 (Epinephelus)
- trimaculatus Vari, 1978 (Hephaestus)
- trimaculatus Chan, 1966 (Neocentropogon)
- trimaculatus Burgess, 1989 (Opsodoras)
- trimaculatus Bonnaterre, 1788 (Labrus), see Cichlasoma bimaculatum
- trimaculatus Boulenger, 1898 (Oxydoras), see Opsodoras trimaculatus
- trimaculatus Cuvier (ex Lacep¨de), 1831 (Holacanthus), see Apolemichthys trimaculatus
- trimaculatus Cuvier, 1830 (Pomacentrus), see Dischistodus perspicillatus
- trimaculatus Fowler & Bean, 1928 (Pellochromis), see Dascyllus trimaculatus
- trimaculatus Fowler, 1914 (Leptodoras), see Opsodoras ogilviei
- trimaculatus Giovene, 1829 (Trichiurus), see Trachipterus trachypterus
- trimaculatus Gmelin, 1789 (Labrus), see Cichlasoma bimaculatum
- trimaculatus Gìnther, 1867 (Heros), see Parapetenia trimaculata
- trimaculatus Iles, 1960 (Haplochromis), see Copadichromis trimaculatus
- trimaculatus Kner, 1858 (Schizodon), see Pseudanos trimaculatus
- trimaculatus Macleay, 1883 (Therapon), see Hephaestus trimaculatus
- trimaculatus Ninni, 1938 (Gobius quadrimaculatus), see Deltentosteus quadrimaculatus
- trimaculatus Ninni, 1938 (Gobius), see Deltentosteus quadrimaculatus
- trimaculatus Rìppell, 1829 (Pomacentrus), see Dascyllus trimaculatus
- trimaculatus Rìppell, 1835 (Julis), see Thalassoma lunare
- trimaculatus Shaw, 1809 (Sparus), see Geophagus surinamensis
- trimaculatus Valenciennes, 1828 (Serranus), see Epinephelus trimaculatus
- trimaculatus Whitley, 1943 (Papuservus), see Hephaestus trimaculatus
- Trimma Jordan & Seale, 1906 (Gobiidae)
- Trimmatom Winterbottom & Emery, 1981 (Gobiidae)
- ?trinca Linnaeus, 1766 (Cyprinus)
- ?trindadensis Pinto, 1957 (Labrisomus)
- Trinectes Rafinesque, 1832 (Achirinae)
- trinema Roberts, 1989 (Luciosoma)
- trinema Bleeker, 1852 (Leuciscus), see Luciosoma trinema
- trinema Bleeker, 1860 (Trinematichthys), see Luciosoma trinema
- Trinematichthys Bleeker, 1860 (Rasborinae), see Luciosoma
- tringa Breder, 1928 (Prognichthys)
- trinitatis Whitehead et al., 1988 (Anchoa)
- trinitatis Isbrìcker, 1980 (Lasiancistrus)
- trinitatis Fowler, 1915 (Anchovia), see Anchoa trinitatis
- trinitatis Goode & Bean, 1896 (Prionotus), see Prionotus beanii
- trinitatis Gìnther, 1864 (Chaetostomus), see Lasiancistrus trinitatis
- trinitatis Lìtken, 1875 (Hemibrycon), see Hemibrycon guppyi
- trinitatis Lìtken, 1875 (Tetragonopterus), see Hemibrycon guppyi
- trinitatis Miranda-Ribeiro, 1919 (Muraena), see Muraena miliaris
- trinitatis Miranda-Ribeiro, 1919 (Ophioblennius), see Ophioblennius atlanticus
- trinitatis Nichols & Murphy, 1914 (Balistes vetula), see Balistes vetula
- Trinorfolkia Fricke, 1994 (Tripterygiidae)
- trinotatus L©vªque & Daget, 1984 (Barbus)
- triocellata Schultz & Marshall, 1954 (Wetmorella), see Wetmorella nigropinnata
- triocellatus Gilbert & Hubbs, 1920 (Caelorinchus)
- triocellatus Lindberg & Krasyukova, 1975 (Lumpenopsis)
- triocellatus Nielsen, 1984 (Pseudorhombus)
- triocellatus Woods, 1966 (Samariscus)
- ?triocellatus Miranda-Ribeiro, 1903 (Paralichthys)
- triocellatus Bloch & Schneider, 1801 (Pleuronectes), see Pseudorhombus triocellatus
- triocellatus Gilbert & Hubbs, 1920 (Coelorhynchus), see Caelorinchus triocellatus
- triocellatus Iwamoto, 1990 (Coelorinchus), see Caelorinchus triocellatus
- triocellatus Matsubara, 1943 (Leptoclinus), see Lumpenopsis triocellatus
- Triodon Cuvier, 1829 (Triodontidae)
- Triodontidae (Tetraodontiformes)
- triophthalma Desoutter, 1986 (Pegusa)
- triophthalmus Bleeker, 1863 (Solea), see Pegusa triophthalma
- triops Winterbottom & Burridge, 1993 (Priolepis)
- triostegus Randall, 1956 (Acanthurus)
- triostegus Heckel, 1843 (Silurus)
- triostegus Bleeker (ex Klein), 1863 (Rhombotides), see Acanthurus triostegus
- triostegus Linnaeus, 1758 (Chaetodon), see Acanthurus triostegus
- triourus Mitchill, 1815 (Bodianus), see Lobotes surinamensis
- tripennis Whitley & Phillipps, 1939 (Gilloblennius)
- tripennis Forster, 1801 (Blennius), see Gilloblennius tripennis
- tripes Johnson, 1865 (Nealotus)
- tripetalon (Holocentrus)
- triphanos Schultz, 1938 (Polyipnus)
- Triphoturus Fraser-Brunner, 1949 (Myctophidae)
- Triplophos Brauer, 1902 (Gonostomatidae)
- Triplophysa Rendahl, 1933 (Nemacheilinae)
- Tripodichthys Tyler, 1968 (Triacanthidae)
- triporiceps Kanazawa, 1958 (Conger)
- triporos (Osteochilus)
- triporos Bleeker, 1852 (Rohita), see Osteochilus triporos
- Triportheus Cope, 1872 (Bryconinae)
- triporus Roberts, 1989 (Osteochilus), see Osteochilus triporos
- Tripterodon Playfair in Playfair & Gìnther, 1867 (Ephippidae)
- tripteronotus Zander, 1986 (Tripterygion)
- Tripteronotus Lacep¨de, 1803 (Coregoninae), see Coregonus
- tripteronotus Risso, 1810 (Blennius), see Tripterygion tripteronotus
- Tripterophycis Boulenger, 1902 (Moridae)
- Tripterygiidae (Perciformes)
- Tripterygion Risso, 1827 (Tripterygiidae)
- ?tripterygius Bloch & Schneider, 1801 (Cottus)
- tripterygius Cuvier, 1829 (Hemitripterus), see Cottus tripterygius
- tripunctatus Cuvier, 1830 (Pomacentrus), see Pomacentrus trilineatus
- tripunctatus Jerdon, 1849 (Systomus), see Barbus ticto
- tripunctatus Randall & Kotthaus, 1977 (Suezichthys), see Suezichthys notatus
- tripunctatus Valenciennes, 1837 (Gobius), see Gobiusculus flavescens
- tripunctulatus Jordan & Evermann, 1896 (Valenciennellus)
- tripunctulatus Esmark, 1871 (Maurolicus), see Valenciennellus tripunctulatus
- triqueter Robins & Ray, 1986 (Lactophrys)
- triqueter Linnaeus, 1758 (Ostracion), see Lactophrys triqueter
- triqueter Swainson, 1839 (Rhinesomus), see Lactophrys triqueter
- triquetrus Rennis & Hoese, 1985 (Parioglossus)
- triradiatus Eigenmann, 1918 (Ancistrus)
- ?triradiatus Lloyd, 1909 (Lophius)
- Triradulifer Fraser-Brunner, 1941 (Triacanthodidae), see Paratriacanthodes
- triramis (Eustomias)
- triregium Whitley & Phillipps, 1939 (Haplophryne), see Haplophryne mollis
- Triscurrichthys Whitley, 1931 (Triglinae), see Prionotus
- trisella Bailey & Richards, 1963 (Etheostoma)
- triserialis Eschmeyer & Herald, 1983 (Ophichthus)
- triserialis Fricke, 1994 (Enneapterygius)
- triserialis Barnard, 1923 (Ophichthys), see Ophichthus triserialis
- triserialis Bussing & Lãpez S., 1994 (Ophichthys), see Ophichthus triserialis
- triserialis Kaup, 1856 (Muraenopsis), see Ophichthus triserialis
- triseriata Garman, 1881 (Platyrhinoidis)
- triseriata Jordan & Gilbert, 1880 (Platyrhina), see Platyrhinoidis triseriata
- triseriatus (Corydoras), see Corydoras nattereri
- triseriatus Ihering, 1911 (Corydoras nattereri), see Corydoras nattereri
- ?trisignatum Cope, 1876 (Moxostoma)
- trisignatus Pietsch & Grobecker, 1987 (Lophiocharon)
- trisignatus Richardson, 1844 (Chironectes), see Lophiocharon trisignatus
- Trismegistus Jordan & Snyder, 1904 (Liparinae), see Liparis
- Triso Randall, Johnson & Lowe, 1989 (Epinephelinae)
- Trisopterus Rafinesque, 1814 (Gadidae)
- trispeculare Compagno, 1984 (Hemiscyllium)
- trispiloides L©vªque, Teugels & Thys van den Audenaerde, 1987 (Barbus)
- trispilomimus Boulenger, 1907 (Barbus)
- trispilopleura Boulenger, 1902 (Barbus)
- trispilos L©vªque & Daget, 1984 (Barbus)
- trispilos Woodland & Allen, 1977 (Siganus)
- trispilos Bleeker, 1855 (Cichlops), see Dampieria cyclophthalma
- trispilos Bleeker, 1863 (Barbodes), see Barbus trispilos
- trispilos Bleeker, 1863 (Puntius), see Barbus trispilos
- trispilota Schultz, 1968 (Parapercis), see Parapercis punctulata
- ?trispilum Hubbs, 1935 ( Cichlasomaurophthalmus)
- trispilus Randall & Smith, 1982 (Halichoeres)
- trispinosa Lockington, 1880 (Odontopyxis)
- trispinosa Cuvier, 1829 (Corvina), see Stellifer stellifer
- trispinosus Paxton et al., 1989 (Batrachomoeus)
- trispinosus Collette, 1995 (Potamobatrachus)
- trispinosus Mochizuki & Sano, 1984 (Synagrops)
- trispinosus (Aethiomastacembelus)
- ?trispinosus Valenciennes, 1840 (Scarus)
- trispinosus Gosse, 1986 (Afromastacembelus), see Aethiomastacembelus trispinosus
- trispinosus Gìnther, 1861 (Batrachus), see Batrachomoeus trispinosus
- trispinosus Lockington, 1880 (Odontopyxis), see Odontopyxis trispinosa
- trispinosus Steindachner, 1911 (Mastacembelus), see Aethiomastacembelus trispinosus
- tristanensis Sivertsen, 1945 (Helicolenus), see Helicolenus mouchezi
- tristani Fowler, 1932 (Panamichthys), see Brachyrhaphis rhabdophora
- tristani Fowler, 1932 (Plectrophallus), see Brachyrhaphis rhabdophora
- tristani Hubbs, 1935 (Plectrophallus), see Brachyrhaphis rhabdophora
- tristichodon DeWitt & Hureau, 1979 (Lycenchelys)
- Tristichodus Boulenger, 1920 (Distichodinae), see Microstomatichthyoborus
- tristigmaturus Fowler, 1934 (Barbus), see Barbus unitaeniatus
- tristis Alcock, 1890 (Scopelengys)
- tristis Smith & Radcliffe, 1913 (Dicrolene)
- tristis Kuiter, 1993 (Heteroclinus)
- ?tristis Lìtken, 1875 ( Trichomycterusbrasiliensis)
- tristis Castelnau, 1872 (Hippocampus), see Hippocampus whitei
- tristis Dor, 1984 (Sebastapistes), see Sebastapistes strongia
- tristis Gilbert, 1978 (Notropis), see Notropis topeka
- tristis Girard, 1856 (Moniana), see Notropis topeka
- tristis Kaup, 1856 (Muraena), see Gymnothorax afer
- tristis Klunzinger, 1870 (Scorpaena), see Sebastapistes strongia
- tristis Klunzinger, 1872 (Cristiceps), see Heteroclinus tristis
- tristis Page & Burr, 1991 (Notropis), see Notropis topeka
- tristis Randall, 1993 (Acanthurus), see Acanthurus pyroferus
- tristis Tickell, 1888 (Acanthurus), see Acanthurus pyroferus
- tristoechus Lee et al., 1983 (Atractosteus)
- tristoechus Bloch & Schneider (ex Parra), 1801 (Esox), see Atractosteus tristoechus
- tristoechus Fowler (Lepisosteus), see Atractosteus tristoechus
- Tristramella (Cichlidae)
- tristrami Gìnther, 1859 (Haligenes), see Tilapia zillii
- tristrami Gìnther, 1860 (Haligenes), see Tilapia zillii
- tristriatus Fowler, 1922 (Leptonotus), see Mitotichthys semistriatus
- tritaeniatus Boulenger, 1913 (Nannaethiops), see Neolebias trilineatus
- tritaeniatus Fowler, 1936 (Rhabdaethiops), see Neolebias trilineatus
- tritor Postel, 1973 (Scomberomorus)
- tritor Cuvier, 1832 (Cybium), see Scomberomorus tritor
- tritor Jordan, 1925 (Leihala), see Echidna polyzona
- tritor Vaillant & Sauvage, 1875 (Poecilophis), see Echidna polyzona
- tritos Smith & Kanazawa, 1977 (Gnathophis)
- ?tritropis Snyder, 1911 (Lactophrys)
- tritropis Jordan & Hubbs, 1925 (Triorus), see Lactophrys tritropis
- trituberatus Regan & Trewavas, 1930 (Eustomias), see Eustomias variabilis
- Triurobrycon Eigenmann, 1909 (Bryconinae), see Brycon
- Triurus (Alepocephalidae)
- Triurus Lacep¨de, 1800 (Alepocephalidae), see Ranzania
- Triurus Swainson, 1839 (Harpadontinae), see Harpadon
- trivirgatus Valenciennes, 1839 (Saurus), see Synodus saurus
- trivirgatus Weber & de Beaufort, 1936 (Anisochaetodon), see Chaetodon striatus
- trivirgatus Weber & de Beaufort, 1936 (Lepidochaeton), see Chaetodon striatus
- ?trivittata Bleeker, 1873 (Amia)
- trivittata Bloch & Schneider, 1801 (Grammistes), see Haemulon striatum
- trivittata Steindachner, 1902 (Beanea), see Siphamia permutata
- trivittatus Russell, 1990 (Pentapodus)
- trivittatus Hilgendorf, 1880 (Sebastes)
- trivittatus Bloch, 1791 (Labrus), see Pentapodus trivittatus
- trivittatus Gray, 1846 (Pteropon), see Terapon theraps
- trivittatus Hamilton, 1822 (Coius), see Terapon puta
- trivittatus Rafinesque, 1820 (Cyprinus), see Luxilus cornutus
- Trixiphichthys Fraser-Brunner, 1941 (Triacanthidae)
- triza Richardson, 1846 (Chatoessus), see Clupanodon thrissa
- triza Whitehead, 1985 (Chatoessus), see Clupanodon thrissa
- trochilus Gìnther, 1874 (Chelmo), see Chelmonops truncatus
- Trochocopus (Labridae)
- troemneri (Hyphessobrycon)
- troemneri Fowler, 1942 (Cheirodon), see Hyphessobrycon troemneri
- troemneri Myers, 1926 (Adiniops), see Nothobranchius orthonotus
- troemneri Wildekamp, Romand & Scheel, 1986 (Nothobranchius), see Nothobranchius orthonotus
- Troglichthys Eigenmann, 1899 (Amblyopsidae), see Amblyopsis
- troglocataractus Kottelat & G©ry, 1989 (Nemacheilus)
- Trogloglanis Eigenmann, 1919 (Ictaluridae)
- trombetasi J©gu, Dos Santos & Ferreira, 1991 (Bryconexodon)
- Trompe Gistel, 1848 (Toxotidae), see Toxotes
- troostii Dum©ril, 1870 (Lepidosteus), see Lepisosteus osseus
- Tropheops Trewavas, 1984 (Cichlidae), see Pseudotropheus
- Tropheus Boulenger, 1898 (Cichlidae)
- trophis Randall & Allen, 1987 (Epinephelus)
- ?tropica Linnaeus, 1758 (Clupea)
- tropica Euphrasen, 1791 (Echeneis), see Phtheirichthys lineatus
- tropica Hildebrand, 1943 (Anchoa), see Anchoa exigua
- tropicalis Paxton et al., 1989 (Hypoatherina)
- tropicalis Whitley, 1948 (Atherinosoma), see Hypoatherina tropicalis
- tropicalis Whitley, 1948 (Taeniomembras), see Hypoatherina tropicalis
- tropicus Hildebrand, 1948 (Neoopisthopterus)
- tropicus Hubbs & Miller, 1975 (Notropis)
- tropicus Osbeck, 1765 (Gobius)
- tropicus Ginsburg, 1933 (Paralichthys)
- tropicus Gill, 1863 (Atractosteus)
- tropicus Hildebrand, 1946 (Odontognathus), see Neoopisthopterus tropicus
- tropicus McAllister, 1990 (Lepisosteus), see Atractosteus tropicus
- tropicus Meek, 1907 (Platypoecilus), see Poecilia sphenops
- tropicus Nichols, 1920 (Caranx hippos), see Caranx hippos
- tropicus Seale, 1910 (Pomacentrus), see Pomacentrus simsiang
- tropicus Whitehead, 1985 (Neopisthopterus), see Neoopisthopterus tropicus
- Tropidichthys Bleeker, 1854 (Canthigasterinae), see Canthigaster
- tropidichthys Smith & Heemstra, 1986 (Tropidichthys), see Canthigaster janthinoptera
- Tropidinius Poey (ex Gill), 1868 (Etelinae), see Pristipomoides
- Tropidocaulus Ogilby, 1919 (Belonidae), see Platybelone
- Tropidodus Gill, 1863 (Heterodontidae), see Heterodontus
- tropidolepis Boulenger, 1900 (Barbus)
- tropidolepis Berry, 1958 (Dikellorhynchus), see Malacanthus plumieri
- Tropidophoxinellus Stephanidis, 1974 (Cyprinidae)
- Tropidostethops Schultz, 1950 (Notocheiridae), see Iso
- Tropidostethus Ogilby, 1895 (Notocheiridae), see Iso
- tropis G©ry, 1963 (Hyphessobrycon)
- troscheli Ortega & Vari, 1986 (Rhabdolichops)
- troscheli Allen & Robertson, 1994 (Sciades), see Sciadeops troschelii
- troscheli Kaup, 1856 (Sternopygus), see Rhabdolichops troscheli
- troschelii Vari, 1989 (Pseudocurimata)
- troschelii Allen, 1991 (Abudefduf)
- troschelii Bellwood, 1994 (Chlorurus)
- troschelii Fowler, 1944 (Sciadeops)
- troschelii Bleeker, 1853 (Muraena), see Gymnothorax richardsonii
- troschelii Bleeker, 1853 (Scarus), see Chlorurus troschelii
- troschelii Bleeker, 1858-59 (Mugil), see Liza macrolepis
- troschelii Gill, 1862 (Glyphidodon), see Abudefduf troschelii
- troschelii Gill, 1863 (Sciades), see Sciadeops troschelii
- troschelii Gìnther, 1860 (Anodus), see Pseudocurimata troschelii
- troschelii Steindachner, 1867 (Heros), see Parapetenia urophthalma
- trossula Jordan & Snyder, 1902 (Stethojulis), see Stethojulis interrupta
- trossula Jordan & Starks, 1906 (Echidna), see Echidna delicatula
- trossulus Jordan & Hubbs, 1925 (Dasson)
- trossulus Jordan & Snyder, 1902 (Aspidontus), see Dasson trossulus
- trossulus Richardson, 1846 (Aleuterius), see Brachaluteres jacksonianus
- trotteri Fowler & Bean, 1923 (Lepidaplois), see Bodianus loxozonus
- troughtoni Whitley, 1928 (Teuthis), see Acanthurus triostegus
- trowbridgii Girard, 1854 (Holconotus), see Micrometrus minimus
- trowbridgii Girard, 1856 (Homalopomus), see Merluccius productus
- trucha Ruiz & Berra, 1994 (Percichthys)
- trucha Valenciennes, 1833 (Perca), see Percichthys trucha
- trucidans Alcock, 1894 (Xenomystax)
- truculenta Regan, 1911 (Parasudis)
- truculenta Boschung, 1992 (Chlorophthalmus), see Parasudis truculenta
- truculenta Macleay, 1881 (Saurida), see Saurida tumbil
- truculentus Fujii, 1983 (Parasudis), see Parasudis truculenta
- truculentus Goode & Bean, 1896 (Chlorophthalmus), see Parasudis truculenta
- Trudis Whitley, 1931 (Platycephalidae), see Platycephalus
- trulla (Cynoglossus)
- Trulla Kaup, 1858 (Cynoglossinae), see Cynoglossus
- trulla Cantor, 1849 (Plagusia), see Cynoglossus trulla
- trulla Kaup, 1858 (Trulla), see Cynoglossus trulla
- trulla Menon, 1977 (Plagusia), see Cynoglossus trulla
- truncata (Rhinoptera)
- truncata Heller & Snodgrass, 1903 (Arbaciosa), see Tomicodon chilensis
- truncata Lesueur, 1821 (Belona), see Strongylura marina
- truncata Matsubara & Hiyama, 1932 (Lepidotrigla), see Lepidotrigla microptera
- truncata Swainson, 1839 (Cepola), see Cepola macrophthalma
- truncata Swainson, 1839 (Setipinna), see Setipinna phasa
- truncatorostris Burgess, 1989 (Heptapterus)
- truncatorostris Borodin, 1927 (Chasmocranus), see Heptapterus truncatorostris
- truncatulus Herre, 1924 (Ospatulus)
- truncatum Miller [G.], 1967 (Peristedion)
- truncatum Agassiz, 1829 (Platystoma), see Pseudoplatystoma fasciatum
- truncatum Gìnther, 1880 (Peristethus), see Peristedion truncatum
- truncatus Bleeker, 1859 (Amblyrhynchichthys)
- truncatus Bleeker, 1854 (Apogon)
- truncatus (Blennius)
- truncatus (Salarias)
- truncatus Bleeker, 1876 (Chelmonops)
- truncatus Katayama, 1984 (Pseudanthias)
- truncatus Regan, 1913 (Pseudobagrus)
- truncatus Valenciennes, 1840 (Arius)
- ?truncatus Holly, 1927 ( Synodontismarmoratus)
- truncatus Bleeker, 1851 (Barbus), see Amblyrhynchichthys truncatus
- truncatus Bleeker, 1863 (Amblydoras), see Amblydoras hancockii
- truncatus Cartier, 1874 (Julis), see Thalassoma lunare
- truncatus Forster, 1801 (Blennius), see Istiblennius edentulus
- truncatus Fowler & Bean, 1930 (Plectropomus), see Plectropomus areolatus
- truncatus Gìnther, 1873 (Chilodipterus), see Cheilodipterus singapurensis
- truncatus Katayama & Masuda, 1983 (Anthias), see Pseudanthias truncatus
- truncatus Katayama, 1957 (Epinephelus), see Epinephelus fasciatus
- truncatus Kner, 1858 (Chaetodon), see Chelmonops truncatus
- truncatus Poey, 1868 (Scarus), see Sparisoma rubripinne
- truncatus Regan, 1913 (Liocassis), see Pseudobagrus truncatus
- truncatus Retzius, 1785 (Tetraodon), see Ranzania laevis
- truncatus Spix & Agassiz, 1829 (Saurus), see Trachinocephalus myops
- truncatus Suckley, 1859 (Salmo), see Oncorhynchus mykiss
- trunovi Iwamoto & Anderson, 1994 (Caelorinchus)
- trunovi Andriashev, 1986 (Paraliparis)
- trunovi Balushkin, Fedorov & Paxton, 1989 (Notocetichthys)
- trunovi Eschmeyer, Editor, 1998 (Hoplostethus mediterraneus), see Hoplostethus mediterraneus
- trunovi Kotlyar, 1986 (Hoplostethus mediterraneus var. ), see Hoplostethus mediterraneus
- trutta Paulin, 1990 (Arripis)
- trutta Bauchot & Quignard, 1973 (Centrolabrus)
- trutta Linnaeus, 1758 (Salmo)
- Trutta Geoffroy, 1767 (Salmoninae), see Salmo
- trutta Bosc, 1802 (Perca), see Arripis trutta
- trutta Forster, 1801 (Sciaena), see Arripis trutta
- trutta Geoffroy, 1767 (Trutta), see Salmo trutta
- trutta Lowe, 1834 (Crenilabrus), see Centrolabrus trutta
- trutta Siebold, 1863 (Trutta), see Salmo trutta
- truttaceus Valenciennes (ex Cuvier), 1846 (Galaxias)
- truttaceus Paulin, 1993 (Arripis)
- truttaceus Cuvier, 1816 (Esox), see Galaxias truttaceus
- truttaceus Cuvier, 1829 (Centropristes), see Arripis truttaceus
- truttaceus Macleay, 1881 (Therapon), see Leiopotherapon unicolor
- Truttae Linnaeus, 1758 (Salmoninae), see Salmo
- ?truttasalar Lacep¨de, 1803 (Salmo)
- truttula Nilsson, 1832 (Salmo), see Salmo trutta
- trybomi Sv¤rdson, 1979 (Coregonus)
- Trycera Koch in Dæderlein, 1884 (Rhinopterinae), see Rhinoptera
- Trycherodon Forbes in Jordan & Gilbert, 1883 (Leuciscinae), see Notropis
- Trygon Cuvier (ex Adanson), 1816 (Dasyatinae), see Dasyatis
- Trygon Geoffroy St. Hilaire, 1817 (Dasyatidae), see Taeniura
- Trygonobatis Blainville, 1825 (Dasyatinae), see Dasyatis
- Trygonobatus Blainville, 1816 (Dasyatinae), see Dasyatis
- Trygonoptera Mìller & Henle, 1841 (Urolophidae)
- Trygonorrhina Mìller & Henle, 1838 (Rhinobatinae)
- tryoni Whitley, 1931 (Campichthys)
- tryoni Ogilby, 1890 (Ichthyocampus), see Campichthys tryoni
- Trypauchen Valenciennes in Cuvier & Valenciennes, 1837 (Gobiidae)
- Trypauchenichthys Bleeker, 1860 (Gobiidae)
- Trypauchenophrys Franz, 1910 (Amblyopinae), see Brachyamblyopus
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Markku Savela