All (in this database) Fish list (Scientific names): Part OH
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
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SE
SI
SO
SQ
SU
T
TH
TS
U
V
VI
W
X
Y
Z
- ?ohiensis (Rafinesque, 1820) (Acipenser)
- ohiensis Evermann, 1902 (Alosa), see Alosa alabamae
- ohiensis Kirtland, 1854 (Esox), see Esox masquinongy
- ohiensis Rafinesque, 1820 (Accipenser), see Acipenser ohiensis
- ohiensis Rafinesque, 1820 (Sterletus), see Acipenser ohiensis
- ?ohioensis Lesueur, 1822 (Cichla)
- ?ohmiensis Watanabe, 1960 (Cottus)
- ohridana ( Scardiniusscardafa)
- ohridana Hadzisce, 1960 (Acantholingua)
- ohridana Karaman, 1924 (Gobio gobio var. ), see Gobio gobio
- ohridana Karaman, 1924 (Leucos aula var. ), see Rutilus basak
- ohridana Karaman, 1928 (Cobitis taenia), see Cobitis taenia
- ohridanus Karaman, 1924 (Chondrostoma nasus), see Chondrostoma nasus
- ohridanus Karaman, 1928 (Alburnus bipunctatus), see Alburnoides bipunctatus
- ohridanus Kottelat, 1997 (Rutilus), see Rutilus basak
- ohridanus Steindachner, 1892 (Salmo), see Acantholingua ohridana
- oiapoquensis Nijssen, 1972 (Corydoras)
- Oidiphorus McAllister & Rees, 1964 (Zoarcidae)
- oire (Balistes)
- oiticicai Travassos, 1967 (Characidium)
- ojanco Poey, 1860 (Mesoprion), see Lutjanus mahogoni
- okadae Tanaka, 1916 (Careproctus), see Liparis punctulatus
- ?okadai Watanabe, 1958 (Porocottus)
- okadai Jayaram, 1966 (Coreobagrus), see Pseudobagrus ichikawai
- okae Fowler, 1949 (Puntius)
- okae Fowler, 1949 (Chrysichthys)
- okaloosae Collette & Yerger, 1962 (Etheostoma)
- okaloosae Fowler, 1941 (Villora), see Etheostoma okaloosae
- Okamejei Ishiyama, 1958 (Rajidae)
- okamurai Machida & Ohta, 1996 (Muraenichthys)
- okamurai Iwamoto & Arai, 1987 (Malacocephalus)
- okamurai Kamohara, 1960 (Parapercis)
- okamurai Yamakawa & Randall, 1989 (Chromis)
- okapia Robins & Bæhlke, 1964 (Lythrypnus)
- okatie Rohde & Arndt, 1987 (Elassoma)
- okavangensis Pappenheim, 1907 (Gnathonemus f. ), see Marcusenius macrolepidotus
- okavangoensis Barnard, 1941 (Beirabarbus), see Barbus radiatus
- okazakii Fukao, 1987 (Neoclinus)
- okeechobeensis Heilprin, 1887 (Ictalurus), see Ameiurus catus
- okefenokee Bæhlke, 1956 (Elassoma)
- ?okiensis Mori, 1956 (Alcichthys)
- okinawae (Scuticaria)
- okinawae Prince Akihito, 1984 (Callogobius)
- okinawae Sawada, Arai & Abe, 1972 (Gobiodon)
- okinawae Yoshino & Shimada, 1984 (Trimma)
- okinawae Aoyagi, 1949 (Eviota caesiura), see Trimma okinawae
- okinawae Bæhlke & McCosker, 1997 (Scuteria), see Scuticaria okinawae
- okinawae Jordan & Snyder, 1901 (Uropterygius), see Scuticaria okinawae
- okinawae Katayama, 1974 (Gracila), see Cephalopholis polleni
- okinawae Snyder, 1908 (Doryptena), see Callogobius okinawae
- okinawaensis Aoyagi, 1941 (Plesiops oxycephalus), see Plesiops oxycephalus
- okinawensis Whitehead, 1985 (Amblygaster)
- okinawensis Okamura & Kawanishi, 1984 (Talismania)
- okinawensis Kishinouye, 1908 (Clupea), see Amblygaster okinawensis
- okinoseana Dean, 1904 (Homea), see Eptatretus okinoseanus
- okinoseanus Yamakawa, 1984 (Eptatretus)
- Okkelbergia Creaser & Hubbs, 1922 (Petromyzontinae), see Lampetra
- okoniensis Kulmatycki, 1926 (Coregonus lavaretus holsatus f. ), see Coregonus lavaretus
- oktediensis Allen & Cross, 1980 (Melanotaenia)
- oktodon McAllister, 1990 (Scarus)
- oktodon Bleeker, 1861 (Pseudocarus), see Scarus oktodon
- oktodon Bleeker, 1861 (Pseudoscarus), see Scarus oktodon
- olbrechtsi (Congocharax)
- olbrechtsi Poll, 1941 (Epiplatys)
- olbrechtsi Poll, 1941 (Epiplatys), see Epiplatys hildegardae
- olbrechtsi Poll, 1954 (Hemigrammocharax), see Congocharax olbrechtsi
- olbrechtsi Vari, 1979 (Neolebias), see Congocharax olbrechtsi
- ?oleiferus Dabry de Thiersant, 1872 (Alburnus)
- oleosa Sulak, 1977 (Aldrovandia)
- oleosus Tanaka, 1918 (Reinhardtius), see Reinhardtius evermanni
- olfax Gill, 1862 (Mycteroperca)
- olfax Cuvier (ex Commerson), 1831 (Osphromenus), see Osphronemus goramy
- olfax Jenyns, 1840 (Serranus), see Mycteroperca olfax
- olfax Lacep¨de, 1801 (Osphromenus), see Osphronemus goramy
- olfersi Baird, 1973 (Argyropelecus)
- olfersi Gosse (ex Mìller & Traschel), 1976 (Geophagus), see Geophagus brasiliensis
- olfersii Cuvier, 1829 (Sternoptyx), see Argyropelecus olfersi
- olfersii Lowe, 1843 (Pleurothyris), see Argyropelecus olfersi
- olfersii Mìller, 1834 (Cephaloptera), see Mobula hypostoma
- olidus Gìnther, 1866 (Galaxias)
- olidus Gìnther, 1866 (Hypomesus)
- olidus Lee & Kim, 1993 (Repomucenus)
- olidus Gìnther, 1873 (Callionymus), see Repomucenus olidus
- olidus Gìnther, 1874 (Engraulis), see Lycengraulis grossidens
- olidus Pallas, 1814 (Salmo), see Hypomesus olidus
- oligacantha Fowler & Bean, 1930 (Pleuroperca), see Plectropomus oligacanthus
- oligacanthum Bleeker, 1845 (Helostoma), see Helostoma temminckii
- oligacanthus Eigenmann, 1903 (Acnodon)
- oligacanthus (Chaetodon)
- oligacanthus Regan, 1922 (Haplochromis)
- oligacanthus Steindachner, 1880 (Ptychochromis)
- oligacanthus de Beaufort, 1940 (Choerodon)
- oligacanthus Randall & Hoese, 1986 (Plectropomus)
- oligacanthus Bleeker, 1851 (Crenilabrus), see Choerodon oligacanthus
- oligacanthus Bleeker, 1854 (Plectropoma), see Plectropomus oligacanthus
- oligacanthus Bleeker, 1868 (Tilapia), see Ptychochromis oligacanthus
- oligacanthus Bleeker, 1874 (Parachaetodon), see Chaetodon oligacanthus
- oligacanthus Fowler & Bean, 1928 (Macrochoerodon), see Choerodon oligacanthus
- oligacanthus Mìller & Troschel, 1844 (Myleus), see Acnodon oligacanthus
- oligactis Koumans, 1935 (Pseudogobiopsis)
- ?oligactis Bleeker, 1875 (Acentrogobius)
- oligactis Bleeker, 1875 (Gobiopsis), see Pseudogobiopsis oligactis
- Oligancistrus (Loricariidae)
- oligaspis Cope, 1865 (Alburnus), see Notropis atherinoides
- Oliglyphisodon Fowler, 1941 (Pomacentridae), see Plectroglyphidodon
- oligobranchus Whitehead et al., 1988 (Encrasicholina)
- oligobranchus Wongratana, 1983 (Stolephorus), see Encrasicholina oligobranchus
- Oligobrycon Eigenmann, 1915 (Cheirodontinae)
- Oligocephalus Girard, 1859 (Etheostomatinae), see Etheostoma
- Oligocottus Girard, 1856 (Cottidae)
- oligodon Matsuura, 1983 (Polydactylus)
- oligodon Amaoka, 1969 (Pseudorhombus)
- oligodon Kukuyev & Konovalenko, 1988 (Scymnodalatias)
- oligodon Bleeker, 1854 (Rhombus), see Pseudorhombus oligodon
- oligodon Gìnther, 1860 (Polynemus), see Polydactylus oligodon
- oligodon Kner, 1865 (Osmerus), see Hypomesus pretiosus
- oligodontis Chen, 1956 (Neosalanx)
- oligogrammus David, 1937 (Barbus)
- oligolepidotus Smitt, 1886 (Coregonus omul var. ), see Coregonus autumnalis
- Oligolepis Bleeker, 1874 (Gobiinae)
- oligolepis Parin, 1996 (Cypselurus)
- oligolepis Randall, Shimizu & Yamakawa, 1982 (Pristilepis)
- oligolepis Regan, 1913 (Brycon)
- oligolepis Banarescu & Nalbant, 1995 (Homatula)
- oligolepis Lee et al., 1980 (Campostoma)
- oligolepis Huang, 1985 (Schizothorax)
- oligolepis Doi, 1997 (Puntius)
- oligolepis Dor, 1984 (Liza)
- oligolepis Markle & Sazanov, 1990 (Bathytroctes)
- oligolepis Ortega & Vari, 1986 (Moenkhausia)
- oligolepis Mayer, 1974 (Epigonus)
- oligolepis Jenkins, 1903 (Enypnias)
- oligolepis Bleeker, 1873 (Lutjanus)
- oligolepis Whitley, 1929 (Parma)
- oligolepis Bleeker, 1876 (Toxotes)
- oligolepis Bleeker, 1878 (Uranoscopus)
- oligolepis (Pseudorhombus)
- oligolepis Knapp, 1986 (Onigocia)
- ?oligolepis Bleeker, 1853 (Gobius)
- oligolepis (Barbus), see Puntius oligolepis
- oligolepis (Chelon), see Liza oligolepis
- oligolepis (Kelloggella), see Enypnias oligolepis
- oligolepis Amaoka, 1969 (Tarphops), see Pseudorhombus oligolepis
- oligolepis Battalgil, 1941 (Barbus tauricus), see Barbus tauricus
- oligolepis Bleeker, 1853 (Capoeta), see Puntius oligolepis
- oligolepis Bleeker, 1853 (Rohita), see Osteochilus spilurus
- oligolepis Bleeker, 1854 (Plagusia), see Cynoglossus arel
- oligolepis Bleeker, 1855 (Anabas), see Anabas cobojius
- oligolepis Bleeker, 1858-59 (Rhombus), see Pseudorhombus oligolepis
- oligolepis Bleeker, 1859 (Mugil), see Liza oligolepis
- oligolepis Bleeker, 1866 (Exocoetus), see Cypselurus oligolepis
- oligolepis Bleeker, 1866 (Megalops), see Megalops cyprinoides
- oligolepis Cao & Zhu, 1989 (Paracobitis variegatus), see Homatula oligolepis
- oligolepis Gìnther, 1864 (Prochilodus), see Prochilodus corimbata
- oligolepis Gìnther, 1864 (Tetragonopterus), see Moenkhausia oligolepis
- oligolepis Jordan & Seale, 1905 (Kelloggella), see Enypnias oligolepis
- oligolepis Jordan & Thompson, 1914 (Tarphops), see Pseudorhombus oligolepis
- oligolepis Karaman, 1972 (Acanthobrama terraesanctae), see Acanthobrama lissneri
- oligolepis Krefft, 1970 (Grimatroctes), see Bathytroctes oligolepis
- oligolepis Regan, 1908 (Platycephalus), see Onigocia oligolepis
- oligolepis Steindachner, 1867 (Cynoglossus), see Cynoglossus arel
- oligolepis Whitley, 1941 (Holotrachys), see Pristilepis oligolepis
- oligolepis Wu & Wang, 1931 (Parapelecus), see Pseudolaubuca engraulis
- oligolinx Compagno, 1984 (Rhizoprionodon)
- oligolinx Springer, 1964 (Protozygaena), see Rhizoprionodon oligolinx
- oligomerus Mahadeva & Munroe, 1990 (Symphurus)
- ?oligopeltis Dum©ril, 1867 (Acipenser)
- ?oligopeltis Dum©ril, 1867 (Antaceus), see Acipenser oligopeltis
- Oligoplites Gill, 1863 (Carangidae)
- Oligopodes Cuvier (ex Risso), 1816 (Bramidae), see Pteraclis
- Oligopodus Lacep¨de, 1800 (Bramidae), see Pteraclis
- oligoporus Kanazawa, 1958 (Conger)
- ?oligoporus Hubbs & Miller, 1972 ( Rhinichthysosculus)
- oligoporus Bailey & Frey, 1951 (Hololepis thermophilus), see Etheostoma fusiforme
- Oligopus Risso, 1810 (Bramidae)
- oligoradiatus Parin & Becker, 1970 (Benthodesmus)
- Oligorus Gìnther, 1859 (Percichthyinae), see Maccullochella
- Oligosarcus Gìnther, 1864 (Characinae)
- oligoscolus Johnson & Cohen, 1974 (Dysalotus)
- oligospila Isbrìcker, 1980 (Peckoltia)
- oligospilos Bleeker, 1857 (Antennarius), see Antennarius maculatus
- oligospilus Gìnther, 1864 (Chaetostomus), see Peckoltia oligospila
- oligosticta Randall & Ben-Tuvia, 1983 (Cephalopholis)
- oligosticta Kner, 1868 (Teuthis), see Siganus argenteus
- oligosticta Regan, 1913 (Gambusia), see Gambusia puncticulata
- Olisthops Richardson, 1850 (Odacidae), see Odax
- olisthostoma Goode & Bean, 1882 (Gerres), see Diapterus auratus
- olisthostomus Robins & Ray, 1986 (Diapterus), see Diapterus auratus
- Olistus Cuvier, 1829 (Carangidae), see Carangoides
- olivacea Castelnau, 1872 (Stigmatophora), see Stigmatopora argus
- olivacea Lacep¨de (ex Commerson), 1803 (Muraenoblenna), see Myxine glutinosa
- olivacea Lacep¨de, 1803 (Muraenoblenna), see Myxine glutinosa
- olivacea Storer, 1845 (Poecilia), see Fundulus olivaceus
- olivacea Swainson, 1838 (Pastinaca), see Dasyatis pastinaca
- olivacea Swainson, 1839 (Pastinaca), see Dasyatis pastinaca
- olivacei Bloch & Schneider (ex Forster), 1801 (Acanthurus), see Acanthurus olivaceus
- olivaceous Mar©chal & Poll, 1991 (Neolamprologus)
- olivaceous Brichard, 1989 (Lamprologus), see Neolamprologus olivaceous
- olivaceovirens (Conger)
- olivaceum Braasch & Page, 1979 (Etheostoma)
- olivaceum (Pomadasys), see Pomadasys olivaceus
- olivaceum Day, 1875 (Pristipoma), see Pomadasys olivaceus
- olivaceum Swainson, 1839 (Labristoma), see Pseudochromis olivaceus
- olivaceus Boulenger, 1894 (Nemacheilus)
- olivaceus Seegers, 1996 (Barbus)
- olivaceus Garman, 1895 (Orestias)
- olivaceus Lee et al., 1980 (Fundulus)
- olivaceus Bloch & Schneider (ex Forster), 1801 (Acanthurus)
- olivaceus Lindberg & Krasyukova, 1975 (Glossogobius)
- olivaceus Snoeks, de Vos, Coenen & Thys van den Audenaerde, 1990 (Haplochromis)
- olivaceus Watson & Kottelat, 1995 (Stiphodon)
- olivaceus Dor, 1984 (Pomadasys)
- olivaceus Valenciennes, 1830 (Lethrinus)
- olivaceus Rìppell, 1835 (Pseudochromis)
- olivaceus Randall & McCosker, 1982 (Anthias)
- olivaceus Amaoka, 1969 (Paralichthys)
- olivaceus Fowler, 1904 (Clarias)
- ?olivaceus Berg, 1933 (Nerophis)
- ?olivaceus Herre, 1927 (Brachyamblyopus)
- ?olivaceus Fourmanoir, 1961 (Gymnocranius)
- ?olivaceus Girard, 1858 (Pimelodus)
- olivaceus Agassiz, 1854 (Zygonectes), see Fundulus olivaceus
- olivaceus Blyth, 1858 (Salarias), see Istiblennius dussumieri
- olivaceus Bonnaterre, 1788 (Labrus), see Symphodus ocellatus
- olivaceus Boulenger, 1894 (Nemachilus), see Nemacheilus olivaceus
- olivaceus Briggs, 1955 (Lepadogaster), see Lepadogaster candolii
- olivaceus Castelnau, 1861 (Gobius), see Caffrogobius saldanha
- olivaceus Cope, 1883 (Leucus), see Gila bicolor
- olivaceus Cuvier, 1828 (Mesoprion), see Lutjanus argentimaculatus
- olivaceus Day, 1876 (Mugil), see Liza parsia
- olivaceus De Vis, 1885 (Choerops), see Choerodon cyanodus
- olivaceus Fowler, 1904 (Chlarias), see Clarias olivaceus
- olivaceus Gmelin, 1789 (Labrus), see Symphodus ocellatus
- olivaceus Ogilby, 1910 (Priopis), see Ambassis agassizii
- olivaceus Rafinesque, 1815 (Anopsus), see Myxine glutinosa
- olivaceus Randall & McCosker, 1982 (Pseudanthias), see Anthias olivaceus
- olivaceus Risso, 1810 (Lepadogaster), see Lepadogaster candolii
- olivaceus Smith & Radcliffe, 1912 (Lophiodes), see Lophiodes mutilus
- olivaceus Storer, 1845 (Zygonectes), see Fundulus olivaceus
- olivaceus Swainson, 1839 (Canthophrys), see Lepidocephalus guntea
- olivaceus Temminck & Schlegel, 1845 (Gobius), see Glossogobius olivaceus
- olivaceus Temminck & Schlegel, 1846 (Hippoglossus), see Paralichthys olivaceus
- olivaceus Valenciennes, 1835 (Amphacanthus), see Siganus sutor
- olivaceus Walbaum, 1792 (Labrus), see Symphodus ocellatus
- olivaceus van Hasselt, 1879 (Polyacanthus), see Belontia hasselti
- olivai ( Cobitismelanoleuca)
- Olivaichthys Arratia, 1987 (Diplomystidae), see Diplomystes
- olivaris Lee et al., 1980 (Pylodictis)
- olivaris Rafinesque, 1818 (Silurus), see Pylodictis olivaris
- oliveirae Miranda-Ribeiro, 1939 (Farlowella), see Farlowella amazona
- oliveirai Lundberg & Rapp-Py-Daniel, 1994 (Bathycetopsis)
- oliveirai Carvalho & Pinto, 1965 (Tamandareia), see Dactyloscopus tridigitatus
- oliveri Waite, 1910 (Muraenichthys)
- oliveri McAllister, 1990 (Cirrhimuraena)
- oliveri Scuderi, 1957 (Engraulis russoi var. ), see Engraulis encrasicholus
- oliveri Seale, 1910 (Jenkinsella), see Cirrhimuraena oliveri
- oliveri Seale, 1910 (Jenkinsiella), see Cirrhimuraena oliveri
- oliverianus (Caelorinchus)
- oliverianus Arai, 1990 (Coelorinchus), see Caelorinchus oliverianus
- oliverianus Phillipps, 1927 (Coelorhynchus), see Caelorinchus oliverianus
- Oliverichthus Whitley & Phillipps, 1939 (Gobiesocinae), see Trachelochismus
- olivieri Penrith & Penrith, 1969 (Lithognathus), see Lithognathus aureti
- ollotropis Fritzsche, 1980 (Syngnathus euchrous), see Syngnathus euchrous
- olmecae Meyer & Perez, 1990 (Priapella)
- olmstedi Storer, 1842 (Etheostoma)
- olokun Lavenberg, 1988 (Chlopsis)
- olokun Robins & Robins, 1966 (Xenoconger), see Chlopsis olokun
- olomina Meek, 1914 (Priapichthys), see Brachyrhaphis rhabdophora
- olonensis Borisov, 1924 (Coregonus albula nat. ), see Coregonus albula
- olonensis Pravdin, 1949 (Coregonus lavaretus), see Coregonus megalops
- Oloplotosus Weber, 1913 (Plotosidae)
- olorum Gomon et al., 1994 (Pseudogobius)
- olorum Sauvage, 1880 (Gobius), see Pseudogobius olorum
- olosteon Rafinesque, 1810 (Octonus), see Peristedion cataphractum
- olriki Kanayama, 1991 (Aspidophoroides), see Ulcina olrikii
- olrikii Cramer, 1896 (Ulcina)
- olrikii Kanayama, 1991 (Aspidophoroides), see Ulcina olrikii
- olrikii Lìtken, 1876 (Aspidophoroides), see Ulcina olrikii
- olseni (Dipturus)
- olseni Bigelow & Schroeder, 1951 (Raja), see Dipturus olseni
- olsoni Dawson, 1982 (Storrsia)
- olssoni Johnels, 1954 (Syngnathus), see Enneacampus ansorgii
- Olssonichthys Fowler, 1958 (Moridae), see Rhynchogadus
- oluolus Baird, 1971 (Polyipnus)
- Olyra McClelland, 1842 (Olyridae)
- Olyridae (Siluriformes)
- olyroides Kottelat & Whitten, 1996 (Hemibagrus)
- olyroides Roberts, 1989 (Mystus), see Hemibagrus olyroides
- omalii Beneden, 1857 (Petromyzon), see Lampetra fluviatilis
- omalonota Dum©ril, 1861 (Poecilia), see Pachypanchax omalonotus
- omalonotus Wildekamp et al., 1986 (Pachypanchax)
- Oman (Blenniidae)
- omanensis Randall, 1995 (Ichthyapus)
- omanensis Gon & Mee, 1995 (Apogon)
- omanensis Regan, 1908 (Champsodon)
- omanensis Koumans, 1944 (Lobulogobius)
- omanensis Norman, 1939 (Stalix)
- omanensis Allen & Mee, 1991 (Amphiprion)
- omanensis Gill & Mee, 1993 (Pseudochromis)
- omanensis Bauchot & Bianchi, 1984 ( Diploduscervinus)
- omanensis Regan, 1905 (Lepidotrigla)
- omanensis Compagno & Springer, 1971 (Iago)
- omanensis Gon & Mee, 1995 (Lepidamia), see Apogon omanensis
- omanensis Norman, 1939 (Eugaleus), see Iago omanensis
- omanensis Norman, 1939 (Sphagebranchus), see Ichthyapus omanensis
- Omegophora Whitley, 1934 (Tetraodontidae)
- omeiensis Chang, 1944 (Metahomaloptera)
- omeiensis Ding, 1994 (Acheilognathus)
- omeiensis Shih & Tchang, 1934 (Acanthorhodeus), see Acheilognathus omeiensis
- omeihensis Burgess, 1989 (Pseudobagrus)
- omeihensis Nichols, 1941 (Leiocassis), see Pseudobagrus omeihensis
- omen Tyler, 1966 (Bathyphylax)
- omias Gìnther, 1864 (Synodontis)
- omiscomaycus Lee et al., 1980 (Percopsis)
- omiscomaycus Walbaum, 1792 (Salmo), see Percopsis omiscomaycus
- ommaspilus Bæhlke, 1961 (Symphurus)
- ommata Myers, 1924 (Leptolucania)
- ommata (Ancylopsetta)
- ommata Bigelow & Schroeder, 1948 (Diplobatis)
- ommata Clark, 1936 (Narcine), see Diplobatis ommata
- ommata Jordan & Gilbert, 1890 (Discopyge), see Diplobatis ommata
- ommata Jordan, 1884 (Heterandria), see Leptolucania ommata
- ommation Nijssen & Isbrìcker, 1988 (Apistoloricaria)
- ommatistius Gilbert, 1913 (Triglops), see Triglops murrayi
- ommatura Jordan & Snyder, 1902 (Parapercis)
- ommatura Richardson, 1846 (Solea), see Zebrias zebra
- ommaturus Man & Hodgkiss, 1981 (Acanthogobius)
- ommaturus Bleeker, 1874 (Actinogobius), see Acanthogobius ommaturus
- ommaturus Richardson, 1845 (Gobius), see Acanthogobius ommaturus
- ommatus Jordan & Gilbert, 1883 (Paralichthys), see Ancylopsetta ommata
- ommescherit (Raja)
- ommopterus Richardson, 1846 (Cossyphus), see Choerodon schoenleinii
- omnicaeruleus Seehausen & Bouton, 1998 (Neochromis)
- Omobranchus Valenciennes (ex Ehrenberg) in Cuvier & Valencienne, 1836 (Blenniidae)
- Omochelys Fowler, 1918 (Ophichthinae), see Ophichthus
- Omochetus Ogilby, 1897 (Clupeidae), see Hyperlophus
- omoculatus Wildekamp, 1977 (Aplocheilichthys)
- ?omocyaneus Poey, 1860 (Eleotris)
- omodakae Tanaka, 1915 (Icelus), see Icelus cataphractus
- omonti Allgayer, 1988 (Paraneetroplus), see Amphilophus coeruleus
- Omopomacentrus Fowler, 1944 (Pomacentridae), see Pomacentrus
- omorgmus McCosker & Bæhlke, 1984 (Ophichthus)
- omosema Ahl, 1935 (Eleotris), see Dormitator lebretonis
- omospilus Buckup, 1993 (Leptocharacidium)
- omostigma Gilbert, 1908 (Lampanyctus)
- omostigma Jordan & Gilbert, 1882 (Genypterus), see Otophidium omostigmum
- omostigma Starks, 1913 (Microgobius), see Microgobius meeki
- omostigmum Gill, 1885 (Otophidium)
- Omosudidae (Aulopiformes)
- Omosudis Gìnther, 1887 (Omosudidae)
- Omox Springer, 1972 (Blenniidae)
- Ompax Castelnau, 1879 (Ceratodontidae), see Neoceratodus
- omphus Baird, 1971 (Polyipnus)
- Ompok Lacep¨de, 1803 (Siluridae)
- omul Danilewsky, 1860 (Salmo), see Coregonus autumnalis
- omul Dybowski, 1874 (Leucichthys), see Coregonus autumnalis
- omul Pallas, 1814 (Salmo), see Coregonus autumnalis
- Onar De Vis, 1885 (Pseudochrominae), see Pseudochromis
- onaria Jordan & Snyder, 1900 (Scorpaena)
- oncerocephala Fowler, 1925 (Pterodicromita), see Bassozetus oncerocephalus
- oncerocephalus Nielsen, 1990 (Bassozetus)
- oncerocephalus Vaillant, 1888 (Sirembo), see Bassozetus oncerocephalus
- Oncesthes Jordan & Hubbs, 1925 (Blenniidae), see Aspidontus
- Onchocottus Gill, 1861 (Cottidae), see Triglopsis
- oncina Jardine & Schomburgk, 1841 (Arius), see Liosomadoras oncinus
- oncinus Mees, 1978 (Liosomadoras)
- oncinus Jardine & Schomburgk, 1841 (Arius), see Liosomadoras oncinus
- Oncobalistes Fowler, 1946 (Balistidae), see Melichthys
- Oncocottus Gill, 1862 (Cottidae), see Myoxocephalus
- Oncopterus Steindachner, 1875 (Rhombosoleinae)
- Oncorhynchus Suckley, 1861 (Salmoninae)
- Oncotion Klein, 1777 (Cyclopterinae), see Cyclopterus
- ondon Shaw, 1930 (Pseudobagrus)
- onegensis Berg & Popov, 1932 (Myoxocephalus quadricornis), see Triglopsis quadricornis
- onegensis Berg, 1949 (Myoxocephalus quadricornis), see Triglopsis quadricornis
- onegensis Mel'yantsev, 1948 (Lota lota infra. ), see Lota lota
- onegi Pravdin, 1931 (Coregonus lavaretus ludoga nat. ), see Coregonus widegreni
- oneida DeKay, 1842 (Catostoma), see Moxostoma macrolepidotum
- Oneirodes Lìtken, 1871 (Oneirodidae)
- Oneirodidae (Lophiiformes)
- ongudajensis Kashchenko, 1899 (Thymallus nikolskyi var. ), see Thymallus arcticus
- ongus Heemstra & Randall, 1986 (Epinephelus)
- ongus Bloch, 1790 (Holocentrus), see Epinephelus ongus
- oni Smith, 1956 (Tomiyamichthys)
- oni Tomiyama, 1936 (Cryptocentrus), see Tomiyamichthys oni
- onias Gronow, 1854 (Cynaedus), see Boops salpa
- Onigocia Jordan & Thompson, 1913 (Platycephalidae)
- onitis Smith [C.L.], 1985 (Tautoga)
- onitis Linnaeus, 1758 (Labrus), see Tautoga onitis
- Onogadus de Buen, 1934 (Lotidae), see Gaidropsarus
- Onos Risso, 1827 (Lotidae), see Gaidropsarus
- Onouphrios Whitley, 1951 (Ichthyboriinae), see Ichthyborus
- ?ontariensis Jordan & Thompson, 1910 (Triglopsis)
- ontariensis Jordan & Evermann, 1911 (Leucichthys), see Coregonus artedii
- ontariensis Valenciennes, 1848 (Thymallus), see Thymallus arcticus
- Onus Agassiz, 1846 (Lotidae), see Gaidropsarus
- Onus Rafinesque, 1810 (Merlucciinae), see Merluccius
- Onuxodon Smith, 1955 (Carapinae)
- Onychodon Dybowski, 1872 (Leuciscinae), see Hypophthalmichthys
- Onychognathus Troschel, 1866 (Chrominae), see Chromis
- Onychostoma (Cyprinidae)
- onychus Eigenmann & Eigenmann, 1892 (Cottus), see Cottus ricei
- onyx De Vis, 1884 (Pomacentrus), see Dascyllus melanurus
- oophorus Kottelat, 1990 (Xenopoecilus)
- oophylax Ceas & Page, 1992 (Etheostoma)
- ?oopumiti Curtiss, 1938 (Gobius)
- ?oopupape Curtiss, 1938 (Gobius)
- oortii Bath, 1992 (Praealticus)
- oortii Bleeker, 1851 (Salarias), see Praealticus oortii
- Oostethus Hubbs, 1929 (Syngnathynae), see Microphis
- Opaeophacus Bond & Stein, 1984 (Zoarcidae)
- opah Shaw, 1803 (Zeus), see Lampris guttatus
- opalescens Eschmeyer, Editor, 1998 (Leptolebias)
- opalescens Nielsen, 1973 (Caristius)
- ?opalescens Herre, 1936 (Ctenogobius)
- opalescens Jordan & Starks, 1895 (Lythrulon), see Haemulon flaviguttatus
- opalescens Myers, 1942 (Cynolebias), see Leptolebias opalescens
- opalescens Zugmayer, 1911 (Platyberyx), see Caristius opalescens
- opalina Valenciennes, 1839 (Julis), see Halichoeres radiatus
- opalinum Goode & Bean, 1896 (Myctophum), see Myctophum affine
- opalinus Howes, 1982 (Brycon)
- opalinus Cuvier, 1819 (Chalceus), see Brycon opalinus
- opdenboschi Taverne & G©ry, 1975 (Ivindomyrus)
- Opeatogenys Briggs, 1955 (Gobiesocinae)
- operculare Paxton et al., 1989 (Holocentrum), see Neoniphon opercularis
- operculare Playfair, 1867 (Pristipoma), see Pomadasys opercularis
- operculare Valenciennes, 1831 (Holocentrum), see Neoniphon opercularis
- opercularioides Bleeker, 1851 (Callionymus), see Eleutherochir opercularis
- opercularioides Bleeker, 1879 (Eleutherochir), see Eleutherochir opercularis
- opercularis McCosker, 1974 (Paraletharchus)
- opercularis (Neoniphon)
- opercularis Macleay, 1878 (Apogon)
- opercularis Uyeno & Arai, 1984 (Macropodus)
- opercularis Bath, 1989 (Parablennius)
- opercularis Fricke, 1982 (Eleutherochir)
- opercularis Eigenmann & Kennedy, 1903 (Biotoecus)
- opercularis Gill, 1861 (Myxodagnus)
- opercularis Dor, 1984 (Pomadasys)
- opercularis Dor, 1984 (Bodianus)
- opercularis (Trochocopus)
- opercularis Allen, 1991 (Chromis)
- opercularis McCulloch, 1923 (Rainfordia)
- opercularis Krupp, 1995 (Trinectes)
- opercularis Gilbert & Burke, 1912 (Acantholiparis)
- opercularis Eschmeyer & Herald, 1983 (Polydactylus), see Filimanus sealei
- opercularis Fowler, 1952 (Prionotus), see Bellator egretta
- opercularis Gill, 1863 (Trichidion), see Filimanus sealei
- opercularis Guichenot, 1847 (Cossyphus), see Bodianus opercularis
- opercularis Gìnther, 1862 (Platyglossus), see Halichoeres margaritaceus
- opercularis Gìnther, 1867 (Heliastes), see Chromis opercularis
- opercularis Jordan & Gilbert, 1882 (Stolephorus), see Cetengraulis mysticetus
- opercularis Linnaeus, 1758 (Labrus), see Macropodus opercularis
- opercularis Murray, 1887 (Salarias), see Parablennius opercularis
- opercularis Myers & Wade, 1941 (Letharchus), see Paraletharchus opercularis
- opercularis Nichols & Murphy, 1944 (Achirus), see Trinectes opercularis
- opercularis Peters, 1855 (Cossyphus), see Pteragogus pelycus
- opercularis Peters, 1855 (Pteragogus), see Pteragogus pelycus
- opercularis Quoy & Gaimard, 1825 (Sciaena), see Micropogonias furnieri
- opercularis Seale & Bean, 1907 (Polydactylus), see Filimanus sealei
- opercularis Shimizu, 1984 (Flammeo), see Neoniphon opercularis
- opercularis Steindachner, 1875 (Saraca), see Biotoecus opercularis
- opercularis Valenciennes, 1830 (Lethrinus), see Lethrinus lentjan
- opercularis Valenciennes, 1837 (Callionymus), see Eleutherochir opercularis
- opercularis Zugmayer, 1911 (Scopeloberyx), see Scopeloberyx robustus
- operculatum Eigenmann, 1917 (Scleronema)
- operculosus Andriashev, 1979 (Paraliparis)
- operosa Parr, 1951 (Normichthys)
- operosus Parr, 1951 (Normichthys), see Normichthys operosa
- operularis Bussing & Lãpez S., 1994 (Trichidion), see Filimanus sealei
- Ophicardia McClelland, 1844 (Synbranchidae), see Monopterus
- ophicephala Gill, 1862 (Cirrimens), see Menticirrhus ophicephalus
- ophicephala Jenyns, 1840 (Umbrina), see Menticirrhus ophicephalus
- ophicephalus Raj, 1941 (Barbus)
- ophicephalus (Philypnus)
- ophicephalus Chao, 1995 (Menticirrhus)
- Ophicephalus Bloch, 1793 (Channidae), see Channa
- ophicephalus Jenyns, 1842 (Gobius), see Ophiogobius jenynsi
- ophicephalus Menni, Ringuelet & Aramburu, 1984 (Ophiogobius), see Ophiogobius jenynsi
- ophicephalus Raj, 1941 (Puntius), see Barbus ophicephalus
- ophicephalus Valenciennes (ex Kuhl & van Hasselt), 1837 (Eleotris), see Ophiocara porocephala
- ophiceps Alcock, 1889 (Sciaena), see Chrysochir aureus
- Ophichthidae (Anguilliformes)
- Ophichthinae (Ophichthidae)
- Ophichthus Ahl, 1789 (Ophichthinae)
- ophichthys (Paraconger)
- Ophichthys Swainson, 1839 (Synbranchidae), see Monopterus
- ophichthys Garman, 1899 (Atopichthys), see Paraconger ophichthys
- Ophiclinops Whitley, 1932 (Clinidae)
- Ophiclinus Castelnau, 1872 (Clinidae)
- ophidianus Poey, 1860 (Gempylus), see Gempylus serpens
- Ophidiidae (Ophidiiformes)
- Ophidiiformes (Actinopterygii)
- Ophidiinae (Ophidiidae)
- Ophidion Linnaeus, 1758 (Ophidiinae)
- ophidion Berg, 1949 (Nerophis)
- ophidion Linnaeus, 1758 (Syngnathus), see Nerophis ophidion
- ophidiophthalmus Karmovskaya, 1991 (Ariosoma)
- ophidium (Caecomastacembelus)
- ophidium Gosse, 1986 (Afromastacembelus), see Caecomastacembelus ophidium
- ophidium Gìnther, 1894 (Mastacembelus), see Caecomastacembelus ophidium
- ophidium Jensen, 1902 (Lycenchelys), see Lycodonus flagellicauda
- Ophieleotris Aurich, 1938 (Eleotridae)
- Ophioblennius Gill, 1860 (Blenniidae)
- Ophiocara Gill, 1863 (Eleotridae)
- ophiocephala Sazonov & Golovan, 1976 (Holtbyrnia)
- Ophiocephalops Fowler, 1906 (Characidae), see Hoplerythrinus
- ophiocephalus Whitley, 1935 (Zosterisessor)
- Ophiocephalus Bloch, 1793 (Channidae), see Channa
- ophiocephalus Iljin, 1927 (Zostericola), see Zosterisessor ophiocephalus
- ophiocephalus Pallas, 1814 (Gobius), see Zosterisessor ophiocephalus
- ophiocephalus Parr, 1932 (Platuronides), see Serrivomer lanceolatoides
- ophiocephalus Smith, 1947 (Amphichthys), see Batrichthys apiatus
- ophiocephalus Smith, 1949 (Gymnobatrachus), see Batrichthys apiatus
- Ophiodon Girard, 1854 (Ophiodontinae)
- ophiodon Bleeker, 1858 (Sauridichthys), see Rachycentron canadum
- ophiodon Cuvier, 1829 (Saurus), see Rachycentron canadum
- Ophiodontinae (Hexagrammidae)
- Ophiognathus Harwood, 1827 (Saccopharyngidae), see Saccopharynx
- Ophiogobius Gill, 1863 (Gobiidae)
- ophiolepis Bleeker, 1853 (Homaloptera)
- ophiomimus Huber, 1992 (Rivulus)
- ophionea Blache & Bauchot, 1972 (Rhinenchelys), see Ichthyapus ophioneus
- ophioneus Robins & Ray, 1986 (Ichthyapus)
- ophioneus Evermann & Marsh, 1900 (Sphagebranchus), see Ichthyapus ophioneus
- Ophiorrhinus Ogilby, 1897 (Eleotridae), see Philypnodon
- Ophioscion Gill, 1863 (Sciaenidae)
- ophioscion Gìnther, 1868 (Corvina), see Ophioscion typicus
- ophis Ahl, 1789 (Ophichthus)
- Ophis Turton, 1807 (Ophichthinae), see Ophichthus
- ophis Forssk¥l, 1775 (Muraena), see Echidna nebulosa
- ophis Linnaeus, 1758 (Muraena), see Ophichthus ophis
- ophis Rìppell, 1830 (Muraena), see Echidna nebulosa
- Ophisichthys Osãrio, 1917 (Heterenchelyidae), see Panturichthys
- Ophisoma Swainson, 1839 (Bathymyrinae), see Ariosoma
- Ophisomus Swainson, 1839 (Pholidae), see Pholis
- Ophisternon McClelland, 1844 (Synbranchidae)
- ophistoma Regan & Trewavas, 1929 (Heterophotus)
- ophistomus Regan & Trewavas, 1929 (Heterophotus), see Heterophotus ophistoma
- Ophisurapus Kaup, 1856 (Ophichthinae), see Apterichtus
- Ophisurus Lacep¨de, 1800 (Ophichthinae)
- Ophithorax McClelland, 1844 (Ophichthinae), see Ophichthus
- ophryas Jordan & Swain, 1885 (Prionotus)
- ?ophryas Jordan & Gilbert, 1883 (Paralichthys)
- ophryas Cope, 1871 (Arothron), see Arothron meleagris
- ?ophthalmicus Weber, 1909 (Gobius)
- ?ophthalmicus Rafinesque, 1810 (Sparus)
- ophthalmicus Cope, 1868 (Lepomis), see Lepomis auritus
- ophthalmicus Cope, 1878 (Pimelodus), see Pimelodella cristata
- ophthalmistius Herre, 1933 (Scarus), see Bolbometopon bicolor
- Ophthalmochromis Poll, 1956 (Cichlidae), see Ophthalmotilapia
- Ophthalmolepis Bleeker, 1862 (Labridae)
- ophthalmolepis Weber, 1913 (Lepidoblepharon)
- Ophthalmolophus Gill, 1860 (Clinidae), see Clinus
- Ophthalmolycus Regan, 1913 (Zoarcidae)
- ophthalmonema Prince Akihito, 1984 (Oxyurichthys)
- ophthalmonema Bleeker, 1856-57 (Gobius), see Oxyurichthys ophthalmonema
- Ophthalmopelton Maul, 1946 (Opisthoproctidae), see Rhynchohyalus
- ophthalmoporus Watson, 1991 (Stenogobius)
- ophthalmoporus Bleeker, 1853 (Gobius), see Stenogobius ophthalmoporus
- ophthalmotaenia Bleeker, 1852 (Carangoides), see Carangoides caeruleopinnatus
- ophthalmotaenia Bleeker, 1854 (Gobius), see Gnatholepis anjerensis
- Ophthalmotilapia Pellegrin, 1904 (Cichlidae)
- ophthalmus (Corydoras)
- ophthalmus Kner, 1854 (Doras), see Corydoras ophthalmus
- ophuysenii (Lutjanus)
- ophuysenii Bleeker, 1858-59 (Mugil), see Valamugil cunnesius
- ophuysenii Bleeker, 1860 (Mesoprion), see Lutjanus ophuysenii
- opici Blache & Bauchot, 1972 (Hemerorhinus)
- Opisthistius Gill, 1862 (Kyphosinae), see Kyphosus
- Opisthocentrus Kner, 1868 (Stichaeidae)
- opisthodon Smith, 1948 (Grammonoides)
- opisthodon Gratzianov, 1907 (Lampetra), see Lampetra fluviatilis
- opisthodon Smith, 1934 (Grammonous), see Grammonoides opisthodon
- Opisthonema Gill, 1861 (Clupeidae)
- opisthophthalmus Boulenger, 1919 (Amphilius)
- Opisthoproctidae (Argentinoidea)
- Opisthoproctus Vaillant, 1888 (Opisthoproctidae)
- opisthoproctus Chen & Mok, 1995 (Dysomma)
- opisthoptera Wu, Lin, Chen, Chen & He, 1977 (Barbodes)
- opisthoptera (Barbus), see Barbodes opisthoptera
- opisthoptera (Puntius), see Barbodes opisthoptera
- opisthoptera Deng, Xiong & Zhan, 1983 (Harriotta), see Harriotta raleighana
- Opisthopterus Gill, 1861 (Clupeidae)
- opisthopterus Fraser-Brunner, 1949 (Gymnoscopelus)
- opisthopterus Maul, 1973 (Scopeloberyx)
- opisthopterus Fowler, 1943 (Corynopomops), see Gephyrocharax chaparae
- opisthopterus Parr, 1933 (Melamphaes), see Scopeloberyx opisthopterus
- opisthopus Parin, 1996 (Cypselurus)
- opisthopus Bleeker, 1866 (Exocoetus), see Cypselurus opisthopus
- opisthostigma Fowler, 1918 (Pomacentrus)
- opisthotaenia G©ry, 1968 (Brycinus)
- opisthotaenia Boulenger, 1903 (Alestes), see Brycinus opisthotaenia
- opisthotaenia Hoedeman, 1951 (Alestobrycon taeniurus), see Brycinus opisthotaenia
- opisthotremus Gilbert & Burke, 1912 (Careproctus)
- Opistocheilos Bleeker, 1859 (Cyprininae), see Schizothorax
- ?opistoculus Borodin, 1928 ( Malacanthusplumieri)
- Opistognathidae (Perciformes)
- Opistognathus Cuvier, 1816 (Opistognathidae)
- opistophthalmus Ranzani, 1840 (Conger), see Ariosoma balearicum
- Opladelus Rafinesque, 1820 (Ictaluridae), see Pylodictis
- Oplegnathidae (Perciformes)
- Oplegnathus Richardson, 1840 (Oplegnathidae)
- Oplichthys N.A., - (Bembridae), see Hoplichthys
- Oplopoma Girard, 1856 (Ophiodontinae), see Ophiodon
- Oplopomops Smith, 1959 (Gobiidae)
- Oplopomus Valenciennes (ex Ehrenberg), 1837 (Gobiidae)
- oplopomus Valenciennes (ex Ehrenberg), 1837 (Oplopomus)
- oplopomus Valenciennes, 1837 (Gobius), see Oplopomus oplopomus
- opokororo Hector, 1871 (Retropinna), see Prototroctes upokororo
- Opostomias Gìnther, 1887 (Melanostomiinae)
- oppositus Poey, 1860 (Monacantus), see Monacanthus hispidus
- Opsanus Rafinesque, 1818 (Batrachoididae)
- Opsaridium Peters, 1854 (Rasborinae)
- Opsariichthys Bleeker, 1863 (Leuciscinae)
- Opsarius McClelland, 1839 (Rasborinae), see Barilius
- opsifrontalis Chapman & Schultz, 1952 (Ecsenius)
- Opsipseudochromis Fowler, 1934 (Cepolidae), see Owstonia
- Opsodentex Fowler, 1925 (Nemipteridae), see Dentex
- Opsodoras Eigenmann, 1925 (Doradidae)
- opsophthalmus Tortonese, 1973 ( Dentexmacrophthalmus)
- Opsopoea Jordan & Evermann, 1896 (Leuciscinae), see Notropis
- Optivus Whitley, 1947 (Trachichthyidae)
- Optonurus Gìnther, 1887 (Macrourinae), see Lepidorhynchus
- Opua Jordan, 1925 (Gobiidae)
- opudi Kottelat, 1991 (Telmatherina)
- ?oquassa Girard, 1854 (Salmo)
- orae Whitley, 1950 (Histiogamphelus briggsii), see Histiogamphelus briggsii
- oramin Bloch & Schneider, 1801 (Amphacanthus guttatus var. ), see Siganus canaliculatus
- oramin Bloch & Schneider, 1801 (Amphacanthus), see Siganus canaliculatus
- oramin Kyushin et al., 1977 (Siganus), see Siganus canaliculatus
- orangiensis Vaillant, 1888 (Muraenolepis)
- oraniensis Barnard, 1943 (Barbus anoplus f. ), see Barbus anoplus
- orarius Last & Gomon, 1987 (Urolophus)
- oratai Kottelat, Whitten, Kartikasari & Wirjoatmodjo, 1993 (Pseudogobius)
- oratai Herre, 1940 (Vaimosa), see Pseudogobius oratai
- orbe Lacep¨de, 1798 (Diodon), see Chilomycterus spinosus
- orbicularis (Brachychalcinus)
- orbicularis Hayashi, 1984 (Sphaeramia)
- orbicularis Steindachner, 1875 (Chaetobranchopsis)
- orbicularis Dor, 1984 (Platax)
- orbicularis (Cyclichthys)
- ?orbicularis Bloch & Schneider, 1801 (Raja)
- orbicularis Bloch, 1785 (Diodon), see Cyclichthys orbicularis
- orbicularis Cuvier (ex Kuhl & van Hasselt), 1828 (Apogon), see Sphaeramia orbicularis
- orbicularis Dor, 1984 (Chilomycterus), see Cyclichthys orbicularis
- orbicularis Forssk¥l, 1775 (Chaetodon), see Platax orbicularis
- orbicularis Guichenot, 1866 (Psettus), see Monodactylus falciformis
- orbicularis Guichenot, 1866 (Rhombus), see Peprilus paru
- orbicularis Hombron & Jacquinot, 1853 (Glyphisodon), see Amblyglyphidodon leucogaster
- orbicularis Jordan & Seale (ex Bleeker), 1907 (Scaeops), see Engyprosopon grandisquamum
- orbicularis Ortega & Vari, 1986 (Poptella), see Brachychalcinus orbicularis
- orbicularis Smith, 1947 (Gephyroberyx), see Gephyroberyx darwinii
- orbicularis Steindachner, 1875 (Chaetobranchus), see Chaetobranchopsis orbicularis
- orbicularis Steindachner, 1908 (Myletes), see Metynnis lippincottianus
- orbicularis Steindachner, 1908 (Myleus), see Metynnis lippincottianus
- orbicularis Valenciennes (ex Quoy & Gaimard), 1835 (Acanthurus), see Acanthurus achilles
- orbicularis Valenciennes, 1830 (Cantharus), see Spondyliosoma cantharus
- orbicularis Valenciennes, 1850 (Tetragonopterus), see Brachychalcinus orbicularis
- orbicularis Visweswara Rao, 1971 (Paragobiopsis), see Bathygobius ostreicola
- orbiculatus (Astronotus)
- orbignianus Valenciennes, 1842 (Conger)
- orbignianus Valenciennes, 1847 (Exocoetus), see Cheilopogon pinnatibarbatus
- orbignyana McAllister, 1990 (Paralichthys)
- orbignyana Jenyns (ex Valenciennes), 1842 (Platessa), see Paralichthys orbignyana
- orbignyana Valenciennes, 1842 (Platessa), see Paralichthys orbignyana
- orbignyana Valenciennes, 1847 (Pellona), see Pellona flavipinnis
- orbignyanus Fowler (Brycon)
- orbignyanus Valenciennes, 1850 (Salminus)
- ?orbignyanus Valenciennes, 1850 (Tetragonopterus)
- orbignyanus Nakamura et al., 1986 (Conger), see Conger orbignianus
- orbignyanus Valenciennes, 1850 (Chalceus), see Brycon orbignyanus
- orbignyi S©ret & McEachran, 1986 (Potamotrygon)
- orbignyi Castelnau, 1855 (Taenura), see Potamotrygon orbignyi
- orbignyi Castelnau, 1855 (Trygon), see Potamotrygon orbignyi
- orbis Cuvier, 1816 (Ephippus)
- orbis Playfair, 1867 (Tripterodon)
- orbis Lindberg & Legeza, 1955 (Eumicrotremus)
- Orbis Fischer von Waldheim (ex Lacep¨de), 1813 (Tetraodontinae), see Tetraodon
- orbis Bloch, 1787 (Chaetodon), see Ephippus orbis
- orbis Cantor, 1849 (Ilarches), see Ephippus orbis
- orbis Fowler, 1938 (Gymnocranius), see Gymnocranius griseus
- orbis Gìnther, 1861 (Cyclopterus), see Eumicrotremus orbis
- ?orbisulcus Anderson & Gutherz, 1967 (Trichopsetta)
- orbitalis Iwamoto, 1979 (Nezumia)
- orbitalis Garman, 1899 (Macrurus), see Nezumia orbitalis
- ?orbitarius Poey, 1860 (Pagellus)
- ?orbitosus Poey, 1875 (Chilomycterus)
- orca Collett, 1874 (Gobius), see Lebetus scorpioides
- orca Jordan & Evermann, 1896 (Orcella), see Notropis simus
- orca Jordan & Evermann, 1900 (Orcula), see Notropis simus
- orca Whitley, 1931 (Nazatexico), see Notropis simus
- orca Woolman, 1895 (Notropis), see Notropis simus
- orcadensis Tomo, 1981 (Pogonophryne)
- orcadensis Gìnther, 1866 (Salmo), see Salmo trutta
- Orcella Jordan & Evermann, 1896 (Leuciscinae), see Notropis
- orcesi McAllister, 1990 (Boehlkea)
- orcesi Weitzman & Nijssen, 1970 ( Corydoraspastazensis)
- orcesi Bæhlke, 1958 (Hemibrycon), see Boehlkea orcesi
- orcini Cuvier, 1831 (Brama)
- orc©si Bæhlke, 1958 (Hemibrycon), see Boehlkea orcesi
- Orcula Jordan & Evermann, 1900 (Leuciscinae), see Notropis
- orcutti Page & Burr, 1993 (Phoxinus), see Gila orcuttii
- orcutti Page & Burr, 1993 (Tigoma), see Gila orcuttii
- orcuttii Lee et al., 1980 (Gila)
- orcuttii Eigenmann & Eigenmann, 1890 (Phoxinus), see Gila orcuttii
- orcuttii Eigenmann & Eigenmann, 1890 (Tigoma), see Gila orcuttii
- Orcynopsis Gill, 1862 (Scombridae)
- ?orcynus Volta, 1796-09 (Scomber)
- Orcynus Cuvier, 1816 (Thunninae), see Thunnus
- Orcynus Rafinesque, 1815 (Carangidae), see Scomberoides
- ordensis Whitley, 1945 (Moolgarda), see Liza alata
- ordensis Whitley, 1945 (Planiliza), see Liza alata
- ordinalis (Plectorhinchus)
- ?ordinalis Scott, 1959 (Plectorhynchus), see Plectorhinchus ordinalis
- ordinatus Cope, 1871 (Epinephelus), see Epinephelus labriformis
- ordinatus Cope, 1873 (Chirus), see Hexagrammos octogrammus
- ordwayi Hildebrand & Barton, 1949 (Brotula)
- oreas Lee et al., 1980 (Phoxinus)
- oreas Boulenger, 1902 (Barbus), see Barbus intermedius
- oreas Cope, 1868 (Chrosomus), see Phoxinus oreas
- oreas Gasowska, 1979 (Parchrosomus), see Phoxinus oreas
- oreas Jordan & Fowler, 1903 (Orthrias), see Nemacheilus toni
- Orectolobidae (Orectolobiformes)
- Orectolobiformes (Chondrichthyes)
- Orectolobus Bonaparte, 1834 (Orectolobidae)
- oregona Briggs & Berry, 1959 (Draconetta), see Centrodraco oregonus
- oregonensis Lee et al., 1980 (Ptychocheilus)
- oregonensis Stein, 1978 (Careproctus)
- oregonensis Richardson (ex Gairdner), 1836 (Cyprinus), see Ptychocheilus oregonensis
- oregonensis Richardson (ex Gairdner), 1836 (Leuciscus), see Ptychocheilus oregonensis
- oregonensis Snyder, 1908 (Rutilus), see Gila bicolor
- oregoni Smith & Kanazawa, 1977 (Parabathymyrus)
- oregoni Castle, 1960 (Synaphobranchus)
- oregoni (Dipturus)
- oregoni Bigelow & Schroeder, 1958 (Raja), see Dipturus oregoni
- oregoni Parr, 1952 (Talismania), see Talismania homoptera
- oregonia Jordan & Snyder, 1913 (Atherinops), see Atherinops affinis
- Oregonichthys Hubbs in Schultz, 1929 (Cyprinidae)
- oregonium Jordan, 1919 (Irillion), see Prosopium williamsoni
- oregonius Jordan & Snyder, 1909 (Coregonus), see Prosopium williamsoni
- oregonus Fricke, 1982 (Centrodraco)
- oregosoma Greenwood, 1980 (Astatotilapia)
- oregosoma Greenwood, 1973 (Haplochromis), see Astatotilapia oregosoma
- Oreichthys Smith, 1933 (Cyprinidae)
- oreinos Iwamoto & Sazonov, 1988 (Coryphaenoides)
- Oreinus McClelland, 1839 (Cyprininae), see Schizothorax
- oremaculatus Nani & Fuster, 1947 (Hypophthalmus)
- oreni Dooley, 1978 (Hoplolatilus)
- oreni Clark & Ben-Tuvia, 1973 (Asymmetrurus), see Hoplolatilus oreni
- Oreochromis Gìnther, 1889 (Cichlidae)
- Oreoglanis Smith, 1933 (Sisoridae)
- Oreogobius Boulenger, 1899 (Gobiinae), see Sicydium
- Oreoleuciscus Warpachowski, 1897 (Leuciscinae)
- Oreonectes Gìnther, 1868 (Nemacheilinae)
- Oreosoma Cuvier, 1829 (Oreosomatidae)
- Oreosomatidae (Zeiformes)
- oresigenes (Puntius), see Puntius binotatus
- oresigenes Bleeker, 1850 (Barbus), see Puntius binotatus
- Orestias Valenciennes, 1839 (Cyprinodontinae)
- orestis Burgess, 1989 (Hassar)
- orestis Steindachner (ex Agassiz), 1875 (Oxydoras), see Hassar orestis
- Orfus Fitzinger, 1873 (Leuciscinae), see Rutilus
- orfus Linnaeus, 1758 (Cyprinus), see Leuciscus idus
- ?orgila Eschmeyer & Allen, 1971 (Scorpaena)
- ori Iwamoto, 1979 (Ventrifossa)
- ori Winterbottom, 1980 (Natalichthys)
- ori Hulley, 1986 (Anacanthobatis)
- ori Smith, 1968 (Macruroplus), see Ventrifossa ori
- ori Wallace, 1967 (Springeria), see Anacanthobatis ori
- ori© Bennett, 1840 (Balistes), see Balistes oire
- orianae Regan, 1914 (Artedidraco)
- oriens Musyl & Keenan, 1992 (Macquaria ambigua), see Macquaria ambigua
- oriental Eydoux & Souleyet, 1850 (Chanos), see Chanos chanos
- orientale Buckup & Reis, 1997 (Characidium)
- orientale Elvira, 1987 (Chondrostoma)
- orientale Paxton, 1979 (Myctophum)
- orientale Kullander, 1983 (Cichlasoma)
- orientale Tominaga, 1971 (Melanostigma)
- orientale Temminck & Schlegel, 1843 (Peristedion)
- orientale Miller, 1974 (Satyrichthys)
- ?orientale Regan, 1913 (Bathystethus)
- orientale Cuvier, 1829 (Holocentrum), see Sargocentron orientalis
- orientale Fowler, 1938 (Nemaperistedion), see Satyrichthys orientale
- orientale Kaup, 1873 (Polyacantichthys), see Peristedion orientale
- orientale Paxton et al., 1989 (Nemiperistedion), see Satyrichthys orientale
- orientalis Machida & Ohta, 1994 (Apterichtus)
- orientalis McCosker & Castle, 1986 (Lamnostoma)
- orientalis Brembach, 1991 (Dermogenys)
- orientalis (Sargocentron)
- orientalis (Herzenstein, 1888) (Triplophysa)
- orientalis (Cyprinus)
- orientalis Nichols, 1925 (Garra)
- orientalis Steindachner & Dæderlein, 1883 (Doederleinia)
- orientalis Pallas, 1814 (Anarhichas)
- orientalis Fricke, 1982 (Synchiropus)
- orientalis Scopoli (ex Gronow), 1777 (Channa)
- orientalis Allen & Hoese, 1991 (Mogurnda)
- orientalis Matsubara & Iwai, 1952 (Neoepinnula)
- orientalis Hutchins, 1991 (Cochleoceps)
- orientalis Myers, 1991 (Plectorhinchus)
- orientalis (Labrus)
- orientalis Collette & Chao, 1975 (Sarda)
- orientalis Gibbs & Collette, 1967 ( Thunnusthynnus)
- orientalis (Sparus)
- orientalis Ochiai, 1984 (Symphurus)
- orientalis (Euryglossa)
- orientalis (Salmo)
- orientalis Kirillov, 1972 ( Salvelinusalpinus)
- orientalis Jordan & Richardson, 1908 (Dactyloptena)
- orientalis Boulenger, 1902 (Bagrus)
- orientalis Burgess, 1989 (Astroblepus)
- orientalis Trewavas, 1964 (Irvineia)
- orientalis Gibbs, Clarke & Gomon, 1983 (Eustomias)
- ?orientalis de Buen, 1950 (Odontesthes)
- ?orientalis Xu, Fang & Wang, 1984 (Leptobotia)
- ?orientalis Vaillant, 1893 (Cyprinion)
- ?orientalis Tomiyama, 1955 (Alticus)
- ?orientalis Fowler, 1933 (Pseudupeneus)
- ?orientalis Kamohara, 1938 (Arnoglossus)
- orientalis (Alosa brashnikovi), see Alosa brashnikovi
- orientalis (Astyanax), see Astyanax bimaculatus
- orientalis Berg, 1912 (Leuciscus cephalus), see Leuciscus cephalus
- orientalis Berg, 1949 (Abramis brama), see Abramis brama
- orientalis Berg, 1949 (Capoetobrama kuschakewitschi), see Capoetobrama kuschakewitschi
- orientalis Berg, 1949 (Leuciscus cephalus), see Leuciscus cephalus
- orientalis Bianco & Banarescu, 1982 (Chondrostoma cyri), see Chondrostoma orientale
- orientalis Blache & Miton, 1961 (Barilius senegalensis), see Raiamas senegalensis
- orientalis Blache, 1963 (Stomias colubrinus), see Stomias lampropeltis
- orientalis Bleeker, 1879 (Aphoristia), see Symphurus orientalis
- orientalis Bloch & Schneider, 1801 (Callionymus), see Synchiropus orientalis
- orientalis Bloch & Schneider, 1801 (Grammistes), see Grammistes sexlineatus
- orientalis Bloch & Schneider, 1801 (Pleuronectes), see Euryglossa orientalis
- orientalis Bloch & Schneider, 1801 (Rhynchobdella), see Macrognathus aculeatum
- orientalis Bloch, 1793 (Anthias), see Plectorhinchus orientalis
- orientalis Boulenger, 1903 (Arges), see Astroblepus orientalis
- orientalis Brevoort, 1856 (Salmo), see Oncorhynchus keta
- orientalis Cantor, 1849 (Synaptura), see Euryglossa orientalis
- orientalis Cope, 1870 (Tetragonopterus), see Astyanax bimaculatus
- orientalis Cuvier, 1829 (Dactylopterus), see Dactyloptena orientalis
- orientalis Dæderlein, 1883 (Acanthocephalus), see Doederleinia orientalis
- orientalis Fujii, 1984 (Diplophos), see Diplophos taenia
- orientalis Gilbert, 1913 (Dasyscopelus), see Myctophum orientale
- orientalis Gilchrist & von Bonde, 1924 (Epinnula), see Neoepinnula orientalis
- orientalis Gìnther, 1863 (Labrax), see Dicentrarchus punctatus
- orientalis Herzenstein, 1888 (Nemacheilus), see Triplophysa orientalis
- orientalis Herzenstein, 1888 (Nemachilus kungessanus), see Triplophysa orientalis
- orientalis Kessler, 1874 (Schizothorax), see Schizothorax argentatus
- orientalis Koelz, 1929 (Leucichthys kiyi), see Coregonus kiyi
- orientalis Kuhl, 1847 (Lutodeira), see Chanos chanos
- orientalis Kulmatycki, 1928 (Coregonus lavaretus grp. ), see Coregonus lavaretus
- orientalis Lacep¨de, 1802 (Lutjanus), see Anthias lineatus
- orientalis Lelek, 1987 (Huso huso), see Huso huso
- orientalis Majorowa, 1934 (Engraulis encrasicholus ponticus nat. ), see Engraulis encrasicholus
- orientalis Matsubara, 1940 (Diplophos taenia), see Diplophos taenia
- orientalis McClelland, 1844 (Dalophis), see Lamnostoma orientalis
- orientalis Mikhailovsky, 1941 (Caspialosa brashnikovi), see Alosa brashnikovi
- orientalis Nikolskii, 1934 (Capoetobrama kuschakewitschi), see Capoetobrama kuschakewitschi
- orientalis Nordmann, 1840 (Leuciscus), see Leuciscus cephalus
- orientalis Ochiai, 1984 (Synaptura), see Euryglossa orientalis
- orientalis Pallas, 1814 (Acipenser), see Huso dauricus
- orientalis Pallas, 1814 (Salmo), see Oncorhynchus tshawytscha
- orientalis Sal'nikov & Malyatskii, 1934 (Huso huso ponticus nat. ), see Huso huso
- orientalis Schmidt, 1927 (Gymnocanthus tricuspis), see Gymnocanthus tricuspis
- orientalis Schmidt, 1928 (Anguilla australis f. ), see Anguilla australis
- orientalis Seale, 1910 (Lutianus), see Lutjanus russellii
- orientalis Seale, 1910 (Otolithus), see Otolithes ruber
- orientalis Sinitzyn, 1900 (Idus melanotus var. ), see Leuciscus idus
- orientalis Swainson, 1839 (Brachirus), see Euryglossa orientalis
- orientalis Temminck & Schlegel, 1844 (Chorinemus), see Scomberoides lysan
- orientalis Temminck & Schlegel, 1844 (Histiophorus), see Istiophorus platypterus
- orientalis Temminck & Schlegel, 1844 (Pelamys), see Sarda orientalis
- orientalis Temminck & Schlegel, 1844 (Thynnus), see Thunnus thynnus orientalis
- orientalis Valenciennes (ex Kuhl), 1847 (Chanos), see Chanos chanos
- orientalis Weber, 1894 (Hemiramphus), see Dermogenys orientalis
- orinocense Kullander, 1983 (Cichlasoma)
- orinocensis La Marca, 1997 (Laemolyta)
- orinocensis (Anodus)
- orinocensis Humboldt, 1821 (Cichla)
- orinocensis Fern¡ndez-Y©pez, 1968 (Hildadoras)
- orinocensis Steindachner, 1879 (Anostomus), see Laemolyta orinocensis
- orinocensis Steindachner, 1887 (Elopomorphus), see Anodus orinocensis
- orinocensis Steindachner, 1908 (Myletes), see Metynnis hypsauchen
- orinocensis Steindachner, 1908 (Myleus), see Metynnis hypsauchen
- orinoco Mago-Leccia, 1994 (Sternarchella)
- orinoco La Marca, 1997 (Pseudocetopsis)
- orinoco Isbrìcker, Nijssen & Cala, 1988 (Lithoxancistrus)
- orinoco Schultz, 1944 (Cetopsorhamdia)
- orinoco Myers, 1927 (Ochmacanthus)
- orinoco Burgess, 1989 (Hemicetopsis plumbeus), see Pseudocetopsis orinoco
- Orinocodoras Myers, 1927 (Doradidae)
- orinocoi Fowler, 1915 (Hoplosternum), see Megalechis thoracata
- orissaensis Banarescu, 1971 ( Salmostomaphulo)
- Orissagobius Herre, 1945 (Gobiidae), see Obliquogobius
- ornata (Cyprinella)
- ornata L©vªque & Daget, 1984 (Garra)
- ornata (Limia)
- ornata Roberts, 1992 (Chitala)
- ornata (Parapetenia)
- ornata Whitley, 1951 (Parkraemeria)
- ornata Mooi & Jubb, 1996 (Pempheris)
- ornata Eschmeyer & Herald, 1983 (Pholis)
- ornata Schmidt, 1936 (Bilabria)
- ornata Gomon et al., 1994 (Aracana)
- ornata Fourmanoir & Rivaton, 1979 (Draconetta), see Centrodraco ornatus
- ornata Garman, 1881 (Raja ackleyi var. ), see Leucoraja garmani
- ornata Garman, 1881 (Raja), see Leucoraja garmani
- ornata Girard, 1855 (Embiotoca), see Embiotoca lateralis
- ornata Girard, 1856 (Codoma), see Cyprinella ornata
- ornata Gray, 1838 (Ostracion), see Aracana ornata
- ornata Herre, 1942 (Coronichthys), see Diademichthys lineatus
- ornata Kaup, 1858 (Aphoristia), see Symphurus plagiusa
- ornata Kaup, 1860 (Poecilophis), see Echidna xanthospilos
- ornata Lesueur, 1817 (Hydrargira), see Fundulus heteroclitus
- ornata Regan, 1905 (Crenicichla), see Crenicichla lenticulata
- ornata Rosen & Bailey, 1963 (Poecilia), see Limia ornata
- ornata Soldatov, 1922 (Lycenchelys), see Bilabria ornata
- ornata Toyoshima, 1984 (Lycenchelys), see Bilabria ornata
- ornata Valenciennes (ex Lesueur), 1847 (Amia), see Amia calva
- ornaticauda Kottelat, 1991 (Parosphromenus)
- ornaticeps Bizerril & Peres-Neto, 1995 (Bryconamericus)
- ornaticeps Ahl, 1936 (Heptapterus)
- ornatipinnis Myers, 1924 (Neofundulus)
- ornatipinnis Nakabo, 1984 (Repomucenus)
- ornatipinnis Poll, 1949 (Lamprologus)
- ornatipinnis Boulenger, 1901 (Xenotilapia)
- ornatipinnis Boulenger, 1902 (Polypterus)
- ornatipinnis Boulenger, 1899 (Synodontis)
- ornatipinnis Ahl, 1936 (Apistogramma), see Apistogramma steindachneri
- ornatipinnis Borodin, 1936 (Ectodus descampsii), see Callochromis melanostigma
- ornatipinnis Regan, 1905 (Callionymus), see Repomucenus ornatipinnis
- ornatissima Smith, 1959 (Vanderhorstia)
- ornatissima Whitley, 1966 (Karumba), see Karumba ornatissimus
- ornatissimus Cuvier (ex Solander), 1831 (Chaetodon)
- ornatissimus Araga, 1984 (Halichoeres)
- ornatissimus Poss & Eschmeyer, 1978 (Karumba)
- ornatissimus Gosse, 1982 (Synodontis)
- ornatissimus (Balistes)
- ornatissimus Doi, 1997 (Nemacheilus), see Nemacheilus elegantissimus
- ornatissimus Garrett, 1863 (Julis), see Halichoeres ornatissimus
- ornatissimus Kaup, 1856 (Herpetoichthys), see Ophichthus regius
- ornatissimus Lesson, 1831 (Balistes), see Rhinecanthus aculeatus
- ornatissimus Swainson, 1839 (Rhinecanthus), see Rhinecanthus aculeatus
- ornatissimus Whitley, 1933 (Bathyaploactis curtisensis), see Karumba ornatissimus
- ornatum Girard, 1856 (Campostoma)
- ornatum Compagno, 1984 (Centroscyllium)
- ornatum Alcock, 1889 (Paracentroscyllium), see Centroscyllium ornatum
- ornatum Eschmeyer, Editor, 1998 (Cichlasoma), see Parapetenia ornata
- ornatum Girard, 1856 (Codoma), see Cyprinella ornata
- ornatum Gray, 1830 (Scyllium), see Chiloscyllium plagiosum
- ornatum Kossmann & R¤uber, 1877 (Diagramma), see Plectorhinchus flavomaculatus
- ornatum Regan, 1905 (Cichlosoma), see Parapetenia ornata
- ornatus Regan, 1914 (Rhadinocentrus)
- ornatus Vari, 1979 (Ichthyborus)
- ornatus Kottelat, 1990 (Nemacheilus)
- ornatus Sauvage, 1883 (Barilius)
- ornatus Garman, 1895 (Rivulus)
- ornatus Eccles & Trewavas, 1989 (Eclectochromis)
- ornatus Boulenger, 1898 (Julidochromis)
- ornatus Stephens & Springer, 1974 (Myxodes)
- ornatus Gilbert, 1892 (Gillellus)
- ornatus Fricke, 1982 (Centrodraco)
- ornatus Kottelat & Whitten, 1996 (Stiphodon)
- ornatus Prince Akihito, 1984 (Istigobius)
- ornatus Randall, 1978 (Macropharyngodon)
- ornatus Russell, 1983 (Nelabrichthys)
- ornatus (Sparus)
- ornatus Fricke, 1997 (Enneapterygius)
- ornatus Boulenger, 1902 (Chrysichthys)
- ornatus Burgess, 1989 (Pelteobagrus)
- ornatus Nijssen & Isbrìcker, 1976 (Corydoras)
- ornatus Kner, 1858 (Pimelodus)
- ornatus Compagno, 1984 (Orectolobus)
- ?ornatus Girard, 1854 (Esox)
- ?ornatus Fourmanoir, 1966 (Lubricogobius)
- ?ornatus Wade, 1946 (Kathetostoma)
- ?ornatus (Poey, 1867) (Tetraodon)
- ornatus (Lycocyprinus), see Epiplatys singa
- ornatus Ahl, 1928 (Panchax), see Epiplatys singa
- ornatus Ahl, 1934 (Hyphessobrycon), see Hyphessobrycon rosaceus
- ornatus Anonymous [Bennett], 1830 (Gomphosus), see Gomphosus caeruleus
- ornatus Baird & Girard, 1854 (Cochlognathus), see Pimephales vigilax
- ornatus Boulenger, 1899 (Neoborus), see Ichthyborus ornatus
- ornatus Boulenger, 1920 (Synodontis), see Synodontis ornatissimus
- ornatus Carmichael, 1819 (Labrus), see Nelabrichthys ornatus
- ornatus Castelnau, 1873 (Galaxias), see Galaxias olidus
- ornatus Cuvier, 1831 (Scatophagus), see Scatophagus argus
- ornatus Day, 1871 (Gobius), see Istigobius ornatus
- ornatus De Vis, 1883 (Crossorhinus), see Orectolobus ornatus
- ornatus De Vis, 1884 (Lethrinus), see Lethrinus nebulosus
- ornatus Duncker, 1904 (Pseudobagrus), see Pelteobagrus ornatus
- ornatus Ehrenberg, 1836 (Salarias), see Salarias fasciatus
- ornatus Fourmanoir, 1955 (Anthias), see Holanthias borbonius
- ornatus Fowler, 1931 (Synchiropus), see Synchiropus lateralis
- ornatus Gilbert, 1978 (Notropis), see Cyprinella ornata
- ornatus Gilchrist & Thompson, 1908 (Clinus), see Clinus superciliosus
- ornatus Girard, 1854 (Gunellus), see Pholis ornata
- ornatus Goren, 1979 (Acentrogobius), see Istigobius ornatus
- ornatus Gray, 1831 (Chaetodon), see Chaetodon ornatissimus
- ornatus Gray, 1831 (Notopterus), see Chitala ornata
- ornatus Gronow, 1854 (Labrus), see Thalassoma bifasciatum
- ornatus Herre, 1942 (Coronichthys), see Diademichthys lineatus
- ornatus Hilgendorf, 1899 (Salarias), see Salarias fasciatus
- ornatus Hollard (ex Guichenot), 1857 (Ostracion), see Ostracion whitleyi
- ornatus Jenyns, 1841 (Blennechis), see Hypsoblennius sordidus
- ornatus Kner, 1864 (Thysanocheilus), see Labrichthys unilineatus
- ornatus Kner, 1865 (Thysanocheilus), see Labrichthys unilineatus
- ornatus Lacep¨de, 1802 (Achirus), see Symphurus plagiusa
- ornatus Lindberg & Krasyukova, 1975 (Bilabria), see Bilabria ornata
- ornatus Lindberg & Krasyukova, 1975 (Pholis), see Pholis ornata
- ornatus Murdy & McEachran, 1982 (Gobius), see Istigobius ornatus
- ornatus Myers, 1924 (Phagoborus), see Ichthyborus ornatus
- ornatus Nichols & Griscom, 1917 (Discognathus), see Garra ornata
- ornatus Pappenheim & Boulenger, 1914 (Synodontis), see Synodontis nigrita
- ornatus Poey, 1867 (Tetrodon), see Tetraodon ornatus
- ornatus Poll, 1943 (Clarias), see Clarias liocephalus
- ornatus Proce, 1822 (Balistes), see Aluterus scriptus
- ornatus Regan, 1922 (Haplochromis), see Eclectochromis ornatus
- ornatus Roux, 1830 (Smaris), see Spicara smaris
- ornatus Rìppell, 1830 (Gobius), see Istigobius ornatus
- ornatus Soldatov, 1922 (Lycenchelys), see Bilabria ornata
- ornatus Swainson, 1839 (Blennius), see Aidablennius sphynx
- ornatus Valenciennes, 1830 (Lethrinus), see Lethrinus nebulosus
- ornatus Valenciennes, 1839 (Labrus), see Thalassoma bifasciatum
- ornatus Wildekamp, Romand & Scheel, 1986 (Epiplatys), see Epiplatys singa
- ornatus von Bonde, 1922 (Samaris), see Samaris cristatus
- Ornichthys Swainson, 1839 (Triglinae), see Prionotus
- ornithocephala Collette, 1985 (Zenarchopterus)
- ornithorincha De la Pylaie, 1835 (Anguilla [vulgaris] var. ), see Anguilla anguilla
- ornithostoma Kottelat, 1991 (Thryssocypris)
- oro Jordan, 1927 (Aspasmagaster), see Conidens samoensis
- oronensis Kalashnikov, 1968 (Coregonus ludoga), see Coregonus megalops
- orontis Sauvage, 1882 (Alburnus)
- orontis Aksiray, 1948 (Aphanius cypris), see Aphanius mento
- orontis Berg, 1949 (Acanthobrama marmid), see Acanthobrama marmid
- orontis Gìnther, 1864 (Clarias), see Clarias gariepinus
- oroyae Eigenmann & Eigenmann, 1889 (Pygidium), see Trichomycterus rivulatus
- oroyae Ortega & Vari, 1986 (Trichomycterus), see Trichomycterus rivulatus
- orphnopterus Weitzman & Nijssen, 1970 (Corydoras)
- orphoides ( Puntiussarana)
- orphoides (Systomus), see Puntius sarana orphoides
- orphoides Cuvier & Valenciennes, 1842 (Barbus), see Puntius sarana orphoides
- orphoides Valenciennes, 1842 (Barbus), see Puntius sarana orphoides
- ?orphus Valenciennes, 1830 (Pagrus)
- orphus Linnaeus, 1758 (Sparus), see Sparus pagrus
- orphus Risso, 1827 (Aurata), see Pagrus pagrus
- orqueta Jordan & Gilbert, 1883 (Chloroscombrus), see Chloroscombrus chrysurus
- orri Fowler, 1943 (Poecilia), see Poecilia sphenops
- orsini Ranzani, 1839 (Ozodura), see Mola mola
- orstedii Allen & Robertson, 1994 (Selene)
- ?orstedii Lìtken (ex Kro{/yer), 1875 (Tetragonopterus)
- ortagoriscus Risso, 1827 (Cephalus), see Mola mola
- ortegai Vari & G©ry, 1980 (Cheirodon)
- ortegai Kullander, 1986 (Bujurquina)
- orteguasae G©ry, 1977 (Knodus)
- orteguasae Fowler, 1943 (Moenkhausia)
- ?orteguasae Fowler, 1943 ( Astyanaxfasciatus)
- orteguasae Fowler, 1943 (Bryconamericus), see Knodus orteguasae
- ortenburgeri Hubbs, 1927 (Notropis)
- orthacanthus Eigenmann, 1925 (Opsodoras)
- Orthagoriscus Cuvier, 1816 (Molidae), see Mola
- Orthichthys Gill, 1862 (Macroramphosinae), see Macroramphosus
- orthiocarinatus Pinna, 1992 (Copionodon)
- ?orthocauda Mai, 1978 (Barbatula)
- Orthochromis Greenwood, 1954 (Cichlidae)
- Orthocraeros Smith, 1956 (Xiphiidae), see Makaira
- Orthodon Girard, 1856 (Cyprinidae)
- orthodus Eigenmann, 1907 (Astyanax)
- ?orthoentera Balsamo-Crivelli & Maggi, 1872 (Anguilla)
- orthognathus Kottelat, 1990 (Oryzias)
- orthognathus Eccles & Trewavas, 1989 (Caprichromis)
- orthognathus Matthes, 1959 (Petrochromis)
- orthognathus Trewavas, 1935 (Haplochromis), see Caprichromis orthognathus
- orthogoniata Vaillant, 1902 (Homaloptera)
- orthogrammus Iwamoto, 1990 (Coryphaenoides)
- orthogrammus Gushiken, 1984 (Carangoides)
- orthogrammus Jordan & Gilbert, 1882 (Caranx), see Carangoides orthogrammus
- orthogrammus Smith & Radcliffe, 1912 (Macrourus), see Coryphaenoides orthogrammus
- ortholepis Eigenmann, 1913 (Bryconamericus)
- Orthomyleus Eigenmann, 1903 (Myleinae), see Myleus
- Orthonopias Starks & Mann, 1911 (Cottidae)
- ?orthonops Eigenmann & Kennedy, 1903 (Hemiodus)
- orthonopterus Allen & Robertson, 1994 (Cynoscion)
- orthonotus Peters, 1868 (Nothobranchius)
- orthonotus Eigenmann & Eigenmann, 1889 (Ditrema), see Phanerodon atripes
- orthonotus Hermann, 1804 (Cyprinus), see Leuciscus cephalus
- orthonotus Peters, 1844 (Cyprinodon), see Nothobranchius orthonotus
- Orthophallus Rivas, 1963 (Poeciliinae), see Gambusia
- Orthopristis (Haemulidae)
- Orthopristis Girard, 1858 (Haemulidae), see Pomadasys
- Orthopsetta Gill, 1862 (Paralichthyidae), see Citharichthys
- orthorhynchus Richardson, 1846 (Hippoglossus), see Psettodes erumei
- orthos Mago-Leccia, 1994 (Sternarchella)
- Orthospinus Reis, 1989 (Stethaprioninae)
- Orthosternarchus Ellis, 1913 (Apteronotidae)
- Orthostoechus Gill, 1862 (Haemulidae), see Haemulon
- Orthostomus (Ptereleotrinae)
- orthotaenia Gìnther, 1864 (Brycon)
- orthotaenia Eigenmann, 1903 (Bryconodon), see Brycon orthotaenia
- Orthragoriscus Bloch & Schneider, 1801 (Molidae), see Mola
- Orthragus Rafinesque, 1810 (Molidae), see Mola
- Orthrias Jordan & Fowler, 1903 (Nemacheilinae)
- Orthroleucos Derjavin, 1937 (Leuciscinae), see Rutilus
- orthus Durbin, 1909 (Hemigrammus), see Hemigrammus bellottii
- ortmanni Kullander & Nijssen, 1989 (Apistogramma)
- ortmanni Haseman, 1911 (Pimelodus)
- ortmanni Eigenmann, 1912 (Heterogramma), see Apistogramma ortmanni
- ortoni Fowler, 1915 (Rhamdia)
- ortoni Gill, 1870 (Sorubimichthys), see Sorubimichthys planiceps
- ortonianus Cope, 1878 (Prochilodus)
- ?ortonii Gill, 1870 (Tetragonopterus)
- ortonii Cope, 1876 (Orestias), see Orestias agassizii
- Orycnopsis N.A., - (Scombridae), see Orcynopsis
- orycteropus Poll, Gosse & Orts, 1982 (Campylomormyrus)
- oryx Valenciennes (ex Ehrenberg), 1836 (Salarias), see Istiblennius rivulatus
- oryzae Jordan & Seale, 1906 (Rhodeus), see Tanakia limbata
- oryzae Jordan & Thompson, 1914 (Tanakia), see Tanakia limbata
- Oryzias Jordan & Snyder, 1906 (Oryziinae)
- Oryziinae (Adrianichthyidae)
A
AF
AM
AO
AS
AV
B
BD
BJ
BR
BT
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CE
CI
CR
CW
D
DH
DR
E
EN
EV
F
FL
FS
G
GJ
GU
H
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HW
I
IO
J
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KR
L
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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
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VI
W
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Markku Savela