All (in this database) Fish list (Scientific names): Part RH
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AF
AM
AO
AS
AV
B
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BJ
BR
BT
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CE
CI
CR
CW
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FS
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GU
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HW
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IO
J
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KR
L
LB
LH
LT
M
MB
MF
MK
MV
N
NG
NJ
O
OH
OS
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PE
PF
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PY
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Z
- Rhabdaethiops Fowler, 1936 (Distichodinae), see Neolebias
- Rhabdalestes (Alestiinae)
- Rhabdamia Weber, 1909 (Apogoninae)
- Rhabdoblennius Whitley, 1930 (Blenniidae)
- rhabdolepis Klunzinger, 1871 (Caranx), see Caranx
- Rhabdolichops Eigenmann & Allen, 1942 (Sternopygidae)
- Rhabdopetersius Hoedeman, 1951 (Alestiinae), see Rhabdalestes
- rhabdophora Regan, 1913 (Brachyrhaphis)
- rhabdophora Regan, 1908 (Gambusia), see Brachyrhaphis rhabdophora
- rhabdophora Reznick et al., 1993 (Brachyraphis), see Brachyrhaphis rhabdophora
- rhabdophorus Burgess, 1989 (Sisor), see Sisor rabdophorus
- rhabdops Fowler, 1913 (Ctenobrycon), see Ctenobrycon hauxwellianus
- Rhabdosargus Fowler, 1933 (Sparidae)
- Rhabdosebastes Fowler & Bean, 1922 (Scorpaenidae), see Centrogenys
- rhabdostigma Fowler, 1914 (Megalonema), see Pimelodus ornatus
- rhabdotrachelus (Rhabdoblennius)
- rhabdotrachelus Fowler & Ball, 1924 (Blennius), see Rhabdoblennius rhabdotrachelus
- rhabdotum Fowler & Bean, 1923 (Lepthaemulon), see Orthopristis rhabdotus
- rhabdotus Gosse, 1976 (Gymnogeophagus)
- rhabdotus Fricke, 1994 (Enneapterygius)
- ?rhabdotus Smith-Vaniz, 1969 (Tomicodon)
- ?rhabdotus Fowler & Bean, 1923 (Orthopristis)
- rhabdotus Hensel, 1870 (Geophagus), see Gymnogeophagus rhabdotus
- rhabdotus Jenkins, 1903 (Carangus), see Caranx sexfasciatus
- rhabdoura (Rainboth, 1996) (Lobocheilus)
- rhabdoura Fowler, 1934 (Tylognathus), see Lobocheilus rhabdoura
- rhabdoura Rainboth, 1996 (Lobocheilos), see Lobocheilus rhabdoura
- Rhabdura Ogilby, 1907 (Muraenidae), see Strophidon
- Rhachinotus Cantor, 1849 (Dasyatidae), see Urogymnus
- rhacina (Lotella), see Lotella rhacinus
- rhacinus (Lotella)
- rhacinus Forster, 1801 (Gadus), see Lotella rhacinus
- Rhacochilus Agassiz, 1854 (Embiotocidae)
- rhadinaeus (Paracobitis)
- rhadinaeus Regan, 1906 (Nemacheilus), see Paracobitis rhadinaeus
- rhadinaeus Regan, 1906 (Nemachilus), see Paracobitis rhadinaeus
- Rhadinesthes Regan & Trewavas, 1929 (Astronesthinae)
- rhadineus Coad, 1981 (Noemacheilus), see Paracobitis rhadinaeus
- Rhadinocentrus Regan, 1914 (Melanotaeniidae)
- Rhadinoloricaria Isbrìcker & Nijssen, 1974 (Loricariinae)
- rhadinus Szelistowski, 1990 ( Tomicodoneos)
- ?rhadinus Jordan & Evermann, 1902 (Polydactylus)
- rhakoura Randall & Anderson, 1997 (Chlorurus)
- Rhamdella Eigenmann & Eigenmann, 1888 (Pimelodinae)
- Rhamdia Bleeker, 1858 (Pimelodinae)
- Rhamdioglanis Ihering, 1907 (Pimelodinae), see Imparfinis
- Rhamdiopsis Haseman, 1911 (Pimelodinae)
- rhami Isbrìcker & Nijssen, 1983 (Crossoloricaria)
- Rhamphichthyidae (Gymnotiformes)
- Rhamphichthys Mìller & Troschel, 1848 (Rhamphichthyidae)
- ?rhamphidognatha Cohen, 1987 (Saccogaster)
- Rhamphobatis Gill, 1862 (Rhininae), see Rhina
- Rhamphoberyx Gill, 1863 (Myripristinea), see Myripristis
- Rhamphocetichthys (Cetomimidae)
- Rhamphochromis Regan, 1922 (Cichlidae)
- Rhamphocottidae (Scorpaeniformes)
- Rhamphocottus Gìnther, 1874 (Rhamphocottidae)
- Rhamphodermogenys Fowler & Bean, 1922 (Hemiramphidae), see Dermogenys
- Rhamphosternarchus Gìnther, 1870 (Apteronotidae), see Sternarchorhynchus
- Rhaphiobelone Fowler, 1934 (Belonidae), see Strongylura
- Rhaphiodon Agassiz in Spix & Agassiz, 1829 (Rhaphiodontinae)
- Rhaphiodontichthys Amaral Campos, 1945 (Rhaphiodontinae), see Rhaphiodon
- Rhaphiodontinae (Characidae)
- Rhaphiolepis Fowler, 1905 (Carangidae), see Scomberoides
- Rhechias Jordan, 1921 (Congrinae)
- Rhectogramma Norman, 1930 (Percichthyinae), see Howella
- rhegma Fowler, 1935 (Mystus)
- Rhegma Gilbert in Jordan & Evermann, 1900 (Grammistinae), see Pseudogramma
- rheinardti Kottelat, 1986 (Rhodeus)
- rheinardti Tirant, 1883 (Danio), see Rhodeus rheinardti
- rhenana Fatio, 1890 (Salmo lacustris var. ), see Salmo trutta
- Rhencus Jordan & Evermann, 1896 (Haemulidae), see Pomadasys
- rheni Gosse, 1984 (Marcusenius)
- rheni Fowler, 1936 (Gnathonemus), see Marcusenius rheni
- rheocharis Menezes & Weitzman, 1990 (Mimagoniates)
- Rheocles Jordan & Hubbs in Jordan, 1919 (Bedotiidae)
- Rheoglanis Poll, 1966 (Claroteinae)
- Rheohaplochromis Thys van den Audenaerde, 1963 (Cichlidae), see Schwetzochromis
- rheophila Daget, 1962 (Tilapia)
- rheophila Thys van den Audenaerde, 1969 (Dagetia), see Tilapia rheophila
- rheophilus Daget, 1959 (Amphilius)
- rheophilus Poll, 1948 (Haplochromis), see Schwetzochromis neodon
- rheophilus Seegers & Staeck, 1985 (Theraps), see Theraps lentiginosus
- rheophilus Thys van den Audenaerde, 1963 (Haplochromis), see Schwetzochromis torrenticola
- Rheopresbe Jordan & Starks, 1904 (Cottidae), see Cottus
- Rheorhamphochromis (Cichlidae), see Orthochromis
- rhessodon Smith, 1881 (Gobiesox)
- rhessodon Reid, 1943 (Blenniella), see Blenniella gibbifrons
- Rhexipanchax Huber, 1999 (Aplocheilichthyinae), see Procatopus
- Rhigophila DeWitt, 1962 (Zoarcidae), see Lycodichthys
- Rhina Bloch & Schneider, 1801 (Rhininae)
- rhina Eschmeyer & Herald, 1983 (Raja)
- Rhina Gill (ex Klein), 1862 (Rhininae), see Squatina
- Rhina Klein, 1776 (Rhininae), see Squatina
- Rhina Rafinesque, 1810 (Rhininae), see Squatina
- Rhina Schaeffer, 1760 (Rhininae), see Squatina
- rhina Garman, 1899 (Antimora), see Antimora rostrata
- rhina Jordan & Gilbert, 1880 (Raia), see Raja rhina
- Rhincodon Smith, 1829 (Rhincodontidae)
- Rhincodontidae (Orectolobiformes)
- Rhinecanthus Swainson, 1839 (Balistidae)
- Rhinechidna Barbour, 1908 (Muraenidae), see Enchelycore
- Rhinelepis Agassiz in Spix & Agassiz, 1829 (Hypostominae)
- Rhinenchelys Blache & Bauchot, 1972 (Ophichthinae), see Ichthyapus
- Rhinesomus Swainson, 1839 (Ostraciinae)
- Rhinhoplichthys Fowler, 1938 (Bembridae), see Hoplichthys
- rhinichthyoides Cope, 1872 (Tigoma), see Rhinichthys osculus
- Rhinichthys Agassiz, 1849 (Leuciscinae)
- Rhininae (Rhinobatidae)
- Rhiniodon Smith, 1828 (Rhincodontidae), see Rhincodon
- Rhinobagrus Bleeker, 1865 (Bagrinae), see Leiocassis
- Rhinobatidae (Rajiformes)
- Rhinobatinae (Rhinobatidae)
- Rhinobatos Linck, 1790 (Rhinobatinae)
- rhinobatos Linck, 1790 (Rhinobatos)
- rhinobatos Bloch & Schneider, 1801 (Rhinobatus), see Rhinobatos rhinobatos
- rhinobatos Bonaparte, 1846 (Glaucostegus), see Rhinobatos rhinobatos
- rhinobatos Linnaeus, 1758 (Raja), see Rhinobatos rhinobatos
- Rhinobatus Bloch & Schneider, 1801 (Rhinobatinae), see Rhinobatos
- Rhinoberyx Gill, 1862 (Myripristinea), see Myripristis
- Rhinobrycon Myers, 1944 (Tetragonopterinae)
- rhinoceratus Richardson, 1844 (Channichthys)
- rhinoceros Hansen, 1986 (Helcogramma)
- ?rhinoceros Hollard (ex Cuvier), 1855 (Aluterus)
- rhinoceros Copley, 1938 (Barbus), see Barbus mariae
- rhinoceros DeKay (ex Mitchill), 1842 (Squalus), see Cetorhinus maximus
- Rhinochimaera Garman, 1901 (Rhinochimaeridae)
- Rhinochimaeridae (Chimaeriformes)
- Rhinocryptis Peters, 1844 (Protopteridae), see Protopterus
- rhinocryptis Gray, 1850 (Protopterus), see Protopterus annectens
- Rhinodactylus Smith, 1957 (Nasinae), see Naso
- Rhinodoras Bleeker, 1862 (Doradidae)
- rhinodus Weitzman & Fink, 1985 (Scopaeocharax)
- rhinodus Bæhlke, 1958 (Tyttocharax), see Scopaeocharax rhinodus
- Rhinoglanis Gìnther, 1864 (Mochokinae), see Mochokus
- Rhinogobio Bleeker, 1870 (Cyprinidae)
- Rhinogobioides Rendahl, 1928 (Cyprinidae), see Rhinogobio
- Rhinogobiops Hubbs, 1926 (Gobiidae), see Coryphopterus
- Rhinogobius Gill, 1859 (Gobiinae)
- Rhinoliparis Gilbert, 1896 (Liparinae)
- Rhinomugil Gill, 1863 (Mugilidae)
- Rhinomuraena Garman, 1888 (Muraenidae)
- Rhinopetitia G©ry, 1964 (Tetragonopterinae)
- rhinophanes P©ron, 1807 (Squalus), see Galeorhinus galeus
- rhinophorus Boulenger, 1910 (Barbus)
- Rhinopias Gill, 1905 (Scorpaeninae)
- Rhinoplagusia Bleeker, 1870 (Cynoglossinae), see Paraplagusia
- Rhinoprenes Munro, 1964 (Ephippidae)
- Rhinoptera Cuvier, 1829 (Rhinopterinae)
- Rhinopterinae (Myliobatidae)
- Rhinoraja Ishiyama, 1952 (Rajidae)
- rhinorhijnchos Bleeker, 1852 (Petroskirtes), see Plagiotremus rhinorhynchos
- rhinorhynchos Dor, 1984 (Plagiotremus)
- rhinorhynchos Bleeker, 1852 (Ostracion)
- rhinorhynchos Bleeker, 1852 (Engraulis), see Thryssa kammalensis
- rhinorhynchos Bleeker, 1852 (Petroskirtes), see Plagiotremus rhinorhynchos
- rhinorhynchos Dor, 1984 (Petroskirtes), see Plagiotremus rhinorhynchos
- rhinorhynchus Dor, 1984 (Petroskirtes), see Plagiotremus rhinorhynchos
- rhinorhynchus Masuda et al., 1984 (Ostracion), see Ostracion rhinorhynchos
- Rhinosardinia Eigenmann, 1912 (Clupeidae)
- Rhinoscion Gill, 1861 (Sciaenidae), see Cheilotrema
- Rhinoscopelus Lìtken, 1892 (Myctophidae), see Gonichthys
- Rhinoscymnus Gill, 1865 (Somniosinae), see Somniosus
- rhinosimus Linstow, 1878 (Abramis), see Vimba melanops x rutilus rutilus
- rhinosimus Linstow, 1878 (Abramis), see Rutilus rutilus x vimba melanops
- Rhinosolea Fowler, 1946 (Soleidae)
- Rhinotriacis Gill, 1863 (Triakinae), see Mustelus
- rhipidodorsalis Okamura, 1984 (Ventrifossa)
- rhizacanthus Regan, 1906 (Raia), see Raja clavata
- Rhizoiketicus Vaillant, 1893 (Carapinae), see Carapus
- rhizophora Bussing, 1990 (Lythrypnus)
- rhizophora Heller & Snodgrass, 1903 (Gobius), see Lythrypnus rhizophora
- rhizophorae Rivas, 1969 (Gambusia)
- rhizophorae Goode, 1877 (Fundulus), see Fundulus bermudae
- Rhizophryne Bertelsen, 1982 (Linophrynidae), see Linophryne
- Rhizoprion Ogilby, 1915 (Carcharhinidae), see Rhizoprionodon
- Rhizoprionodon Whitley, 1929 (Carcharhinidae)
- rhoadesii Eccles & Trewavas, 1989 (Buccochromis)
- rhoadesii Boulenger, 1908 (Chilotilapia)
- rhoadesii Boulenger, 1908 (Barbus), see Barbus litamba
- rhoadesii Boulenger, 1908 (Paratilapia), see Buccochromis rhoadesii
- Rhoadsia Fowler, 1911 (Rhoadsiinae)
- Rhoadsiinae (Characidae)
- rhodadenia Gilbert, 1905 (Cyclothone), see Gonostoma elongatum
- rhodanensis Kottelat, 1997 (Salmo)
- rhodanensis Blanchard, 1866 (Chondrostoma), see Chondrostoma genei
- rhodanensis Quignard & Douchement, 1991 (Alosa fallax), see Alosa fallax
- rhodanensis Roule, 1924 (Alosa finta), see Alosa fallax
- rhodanensis Steinmann, 1950 (Coregonus lavaretus nat. ), see Coregonus fera
- rhodensis K¤hsbauer, 1965 (Blennius tentacularis var. ), see Parablennius tentacularis
- Rhodeops Fowler, 1910 (Acheilognathinae), see Acheilognathus
- rhodesianus Gosse, 1984 (Marcusenius)
- rhodesianus Boulenger, 1902 (Barbus), see Barbus marequensis
- rhodesianus Gilchrist & Thompson, 1917 (Anabas), see Ctenopoma multispine
- rhodesianus M¤¤r, 1962 (Gnathonemus), see Marcusenius rhodesianus
- rhodesiensis Paugy, 1984 (Rhabdalestes)
- rhodesiensis Paugy, 1984 (Hemigrammopetersius), see Rhabdalestes rhodesiensis
- rhodesiensis Paugy, 1984 (Micralestes tangensis), see Rhabdalestes rhodesiensis
- rhodesiensis Ricardo-Bertram, 1943 (Petersius), see Rhabdalestes rhodesiensis
- Rhodeus Agassiz, 1832 (Acheilognathinae)
- rhodioni Vasil'yeva & Vasil'ev, 1994 (Neogobius)
- rhodocephalus Bleeker, 1865 (Gymnothorax), see Gymnothorax formosus
- rhodochilus Bleeker, 1863 (Echidna)
- rhodochir Gilbert, 1905 (Laemonema)
- rhodochloris Jordan & Gilbert, 1880 (Sebastichthys), see Sebastes helvomaculatus
- rhodochrous Gìnther, 1867 (Cheilinus)
- ?rhodochrous Gìnther, 1872 (Sebastes)
- rhodomelas Gilbert & Burke, 1912 (Careproctus)
- Rhodoniichthys Takagi, 1966 (Gobiidae), see Chaenogobius
- rhodonotus Randall & Yamakawa, 1988 (Hologymnosus)
- rhodonotus Bleeker, 1846 (Bagrus), see Arius bilineatus
- rhodonotus Bleeker, 1853 (Pomacentrus), see Pomacentrus chrysurus
- rhodonotus Fowler, 1946 (Synchiropus), see Neosynchiropus ocellatus
- rhodopeplus Katayama, 1984 (Odontanthias)
- rhodopeplus Gìnther, 1872 (Anthias), see Odontanthias rhodopeplus
- rhodophyga Fischer et al., 1995 (Xenomedea), see Xenomedea rhodopyga
- rhodopinnis Okamura, 1982 (Physiculus)
- rhodopleura Myers, 1929 (Brycinus)
- rhodopleura Boulenger, 1906 (Alestes), see Brycinus rhodopleura
- rhodopleura Hoedeman, 1951 (Alestes macrolepidotus), see Brycinus rhodopleura
- Rhodopleuriscus Fowler, 1944 (Cyprinidae), see Clinostomus
- rhodopterus Bleeker, 1852 (Apogon)
- rhodopterus Bleeker, 1852 (Lethrinus), see Lethrinus harak
- rhodopterus Bleeker, 1852 (Triacanthus), see Triacanthus biaculeatus
- rhodopterus Gìnther, 1861 (Gobius), see Pomatoschistus pictus
- ?rhodopterygius Bleeker, 1846 (Bagrus)
- rhodopus Gill, 1863 (Trachinotus)
- rhodopus Gill, 1863 (Trachynotus), see Trachinotus rhodopus
- rhodopyga Rosenblatt & Taylor, 1971 (Xenomedea)
- rhodorus Jordan & Gilbert, 1880 (Ascelichthys)
- rhodosoma Burke, 1930 (Liparis), see Liparis ochotensis
- rhodospilus Briggs, 1955 (Arcos)
- rhodospilus Gìnther, 1864 (Gobiesox), see Arcos rhodospilus
- rhodostigma Boulenger, 1906 (Pelmatochromis), see Callochromis pleurospilus
- rhodostigma Poll, 1946 (Pelmatochromis), see Callochromis pleurospilus
- rhodostomus Ahl, 1924 (Hemigrammus)
- rhodotaenia Bleeker, 1851 (Ophicephalus), see Channa melasoma
- rhodoterus Tarp, 1952 (Amphistichus)
- rhodoterus Agassiz, 1854 (Holconotus), see Amphistichus rhodoterus
- rhodurus Jordan & McGregor, 1925 (Oncorhynchus), see Oncorhynchus keta
- Rhodymenichthys Jordan & Evermann, 1896 (Pholidae)
- rhomaleum Meek & Hildebrand, 1928 (Sparisoma), see Sparisoma rubripinne
- rhomaleus Allen & Robertson, 1994 (Opistognathus)
- rhomaleus Jordan & Gilbert, 1882 (Opisthognathus), see Opistognathus rhomaleus
- rhomaleus Jordan & Starks, 1906 (Areliscus), see Cynoglossus semilaevis
- rhomaleus Snyder, 1911 (Abudefduf), see Neoglyphidodon melas
- Rhombatractus Gill, 1894 (Melanotaeniidae), see Melanotaenia
- rhombea Arai & Akai, 1988 (Acheilognathus), see Acheilognathus rhombeus
- rhombea Forster, 1832 (Psetta), see Trachinotus goreensis
- rhombea Temminck & Schlegel, 1846 (Capoeta), see Acheilognathus rhombeus
- rhombeus Sawada, 1984 (Acheilognathus)
- rhombeus Deckert & Greenfield, 1987 (Diapterus)
- ?rhombeus Forster, 1795 (Gasterosteus)
- ?rhombeus Kittlitz, 1834 (Acanthurus)
- ?rhombeus Guichenot, 1879 (Scorpis)
- ?rhombeus Bloch & Schneider, 1801 (Pleuronectes)
- rhombeus Bleeker, 1863 (Paracheilognathus), see Acheilognathus rhombeus
- rhombeus Bloch & Schneider, 1801 (Chaetodon), see Monodactylus sebae
- rhombeus Cuvier (ex Commerson), 1829 (Psettus), see Monodactylus sebae
- rhombeus Cuvier, 1829 (Gerres), see Diapterus rhombeus
- rhombeus Dum©ril, 1806 (Serrasalmo), see Serrasalmus normani
- rhombeus Forssk¥l, 1775 (Scomber), see Monodactylus argenteus
- rhombeus Klunzinger, 1871 (Urogymnus), see Urogymnus asperrimus
- rhombeus Lacep¨de, 1801 (Centropodus), see Monodactylus argenteus
- rhombeus Lacep¨de, 1803 (Serrasalmus), see Serrasalmus normani
- rhombeus Linnaeus, 1766 (Salmo), see Serrasalmus normani
- rhombeus Ortega & Vari, 1986 (Serrasalmus), see Serrasalmus normani
- rhombeus Oshima, 1926 (Carassioides), see Carassioides cantonensis
- rhombica Smith, 1959 (Seriola), see Seriola dumerili
- Rhombiscus Jordan & Snyder, 1901 (Paralichthyidae), see Pseudorhombus
- rhombocephala Miranda-Ribeiro, 1939 (Harttia)
- Rhombochirus Gill, 1863 (Echeneidae), see Remora
- Rhombocyttus Gill, 1893 (Zeidae), see Cyttus
- Rhomboida Browne, 1789 (Carangidae), see Selene
- rhomboidalis G©ry et al., 1991 (Myleus)
- rhomboidalis Randall, 1988 (Cirrhilabrus)
- rhomboidalis (Archosargus)
- rhomboidalis Gilchrist, 1906 (Neocyttus)
- ?rhomboidalis Valenciennes, 1844 (Leuciscus)
- ?rhomboidalis Posada, 1909 (Tetragonopterus)
- ?rhomboidalis Tilesius, 1802 (Raja)
- rhomboidalis Cuvier, 1817 (Myletes), see Myleus rhomboidalis
- rhomboidalis Cuvier, 1829 (Otolithus), see Cynoscion acoupa
- rhomboidalis Goldfuss, 1820 (Lebias), see Cyprinodon variegatus
- rhomboidalis G©ry, 1972 (Prosomyleus), see Myleus rhomboidalis
- rhomboidalis Linnaeus, 1758 (Perca), see Archosargus rhomboidalis
- rhomboidalis Valenciennes, 1821 (Lebias), see Cyprinodon variegatus
- rhomboide Rafinesque, 1810 (Solea), see Bothus podas
- rhomboidea Kossmann & R¤uber, 1877 (Pempheris), see Pempheris mangula
- rhomboidea McCulloch, 1915 (Antigonia), see Antigonia rubescens
- rhomboides Eigenmann & Eigenmann, 1889 (Psectrogaster)
- rhomboides Chu & Cui, 1989 (Barbodes)
- rhomboides (Pomacanthus)
- rhomboides Holbrook, 1855 (Lagodon)
- ?rhomboides Cuvier, 1816 (Pleuronectes)
- Rhomboides Goldfuss, 1820 (Scophthalmidae), see Scophthalmus
- rhomboides (Barbus), see Barbodes rhomboides
- rhomboides (Puntius), see Barbodes rhomboides
- rhomboides Bloch, 1787 (Chaetodon), see Trachinotus falcatus
- rhomboides Bonaparte, 1833 (Rhombus), see Bothus podas
- rhomboides Gilchrist & Thompson, 1908 (Holacanthus), see Pomacanthus rhomboides
- rhomboides Kotthaus, 1974 (Carangoides), see Carangoides malabaricus
- rhomboides Lacep¨de, 1802 (Acanthinion), see Trachinotus falcatus
- rhomboides Lee et al., 1980 (Lagodon), see Archosargus rhomboidalis
- rhomboides Linnaeus, 1766 (Sparus), see Lagodon rhomboides
- rhomboides Meek & Hildebrand, 1925 (Hemicaranx), see Hemicaranx amblyrhynchus
- rhomboides Tang, 1942 (Varicorhinus), see Varicorhinus ovalis
- rhomboides Wu et al., 1977 (Varicorhinus ovalis), see Varicorhinus ovalis
- Rhomboidichthys Bleeker, 1856 (Bothinae), see Bothus
- rhomboidichthys Facciol , 1885 (Charybdia), see Arnoglossus imperialis
- ?rhombomaculatus K¡roli, 1882 (Gobius)
- rhomboocellatus Koumans, 1940 (Puntius)
- rhomboocellatus (Barbus), see Puntius rhomboocellatus
- Rhomboplites Gill, 1862 (Lutjaninae)
- Rhomboplitoides Fowler, 1918 (Lutjaninae), see Lutjanus
- Rhomboserranus Fowler, 1943 (Acropomatidae), see Doederleinia
- Rhombosolea Gìnther, 1862 (Rhombosoleinae)
- Rhombosoleinae (Pleuronectidae)
- Rhombosoma Regan, 1914 (Melanotaeniidae), see Melanotaenia
- rhombosomoides Allen, 1980 (Cairnsichthys)
- rhombosomoides Nichols & Raven, 1928 (Rhadinocentrus), see Cairnsichthys rhombosomoides
- Rhomboteuthis Fowler, 1944 (Acanthurinae), see Acanthurus
- Rhombotides Bleeker (ex Klein), 1863 (Acanthurinae), see Acanthurus
- Rhombotides Klein, 1775 (Acanthurinae), see Acanthurus
- rhombus (Scophthalmus)
- ?rhombus Basilewsky, 1855 (Myliobatis)
- Rhombus Cuvier, 1816 (Scophthalmidae), see Scophthalmus
- Rhombus Klein, 1775 (Scophthalmidae), see Scophthalmus
- Rhombus Lacep¨de, 1800 (Stromateidae), see Peprilus
- Rhombus Walbaum (ex Klein), 1792 (Scophthalmidae), see Scophthalmus
- rhombus Cuvier, 1816 (Rhombus), see Scophthalmus rhombus
- rhombus Goldfuss, 1820 (Rhomboides), see Scophthalmus rhombus
- rhombus Linnaeus, 1758 (Pleuronectes), see Scophthalmus rhombus
- rhombus Walbaum (ex Klein), 1792 (Rhombus), see Scophthalmus rhombus
- Rhonciscus Jordan & Evermann, 1896 (Haemulidae), see Pomadasys
- rhothea Smith, 1882 (Uranidea), see Cottus rhotheus
- rhotheus Lee et al., 1980 (Cottus)
- rhotheus Cope, 1861 (Leucosomus), see Semotilus corporalis
- rhothion Fricke, 1997 (Enneapterygius)
- rhothoeca (Thoburnia)
- Rhothoeca Jordan, 1885 (Etheostomatinae), see Etheostoma
- rhothoecum Lee et al., 1980 (Moxostoma), see Thoburnia rhothoeca
- rhothoecus Thoburn, 1896 (Catostomus), see Thoburnia rhothoeca
- rhothophilus Paxton et al., 1989 (Iso)
- rhothophilus Ogilby, 1895 (Tropidostethus), see Iso rhothophilus
- rhothophilus Schultz, 1950 (Tropidostethops), see Iso rhothophilus
- Rhyacanthias Jordan, 1921 (Acropomatidae), see Symphysanodon
- Rhyacichthyidae (Perciformes)
- Rhyacichthys Boulenger, 1901 (Rhyacichthyidae)
- rhyacophila Weitzman, Fink, Machado-Allison and Royero L., 1994 (Ptychocharax)
- rhyacophilus Briggs, 1951 (Gobiesox), see Gobiesox juradoensis
- rhyacophilus Weitzman, Fink, Machado-Allison & Royero L., 1994 (Ptychocharax), see Ptychocharax rhyacophila
- rhyax Polunin & Lubbock, 1979 (Amblyeleotris)
- Rhycherus Ogilby, 1907 (Antennariidae)
- Rhynchactis Regan, 1925 (Gigantactinidae)
- ?rhynchaenus Michahelles, 1829 (Syngnathus)
- rhynchaeus Agassiz, 1850 (Acipenser), see Acipenser stellatus
- rhynchaeus Heckel, 1836 (Acipenser), see Acipenser stellatus
- Rhynchias Gill in Jordan & Evermann, 1898 (Hypoptychidae), see Hypoptychus
- Rhynchichthys Valenciennes in Cuvier & Valenciennes, 1831 (Myripristinea), see Myripristis
- Rhynchobatinae (Rhinobatidae)
- Rhynchobatus Mìller & Henle, 1837 (Rhynchobatinae)
- Rhynchobdella Bloch & Schneider, 1801 (Mastacembelidae)
- Rhynchoceratias Regan, 1925 (Himantolophidae), see Himantolophus
- Rhynchoconger Jordan & Hubbs, 1925 (Congrinae)
- Rhynchocymba Jordan & Hubbs, 1925 (Congrinae), see Gnathophis
- Rhynchocypris Gìnther, 1889 (Cyprinidae)
- Rhynchodoras Klausewitz & Ræssel, 1961 (Doradidae)
- Rhynchogadus Tortonese, 1948 (Moridae)
- Rhynchohyalus Barnard, 1925 (Opisthoproctidae)
- rhyncholepis Bleeker, 1852 (Serranus), see Epinephelus rivulatus
- rhyncholepis Bleeker, 1869 (Glyphidodon), see Abudefduf margariteus
- rhyncholepis Katayama, 1984 (Epinephelus), see Epinephelus rivulatus
- rhynchomacer Dum©ril, 1870 (Hippocampus), see Hippocampus kuda
- Rhynchopelates Fowler, 1931 (Teraponidae)
- rhynchophorus Gosse, 1984 (Campylomormyrus)
- rhynchophorus Boulenger, 1898 (Gnathonemus), see Campylomormyrus rhynchophorus
- Rhynchorhamphus Fowler, 1928 (Hemiramphidae)
- Rhynchostomias Regan & Trewavas, 1930 (Melanostomiinae), see Eustomias
- rhynchota Koller, 1926 (Garra), see Garra orientalis
- Rhynchotes Troschel (ex Bibron), 1856 (Canthigasterinae), see Canthigaster
- Rhytejulis Fowler & Bean, 1928 (Corinae), see Stethojulis
- rhytidoderma Gìnther, 1870 (Ophichthys), see Ophichthus rutidoderma
- rhytidodermatoides Gìnther, 1870 (Ophichthys), see Ophichthus rutidodermatoides
- Rhytidostomus Heckel, 1843 (Cycleptinae), see Cycleptus
- Rhytiodus Kner, 1858 (Anostominae)
- rhytisma (Amphilophus)
- rhytisma Bæhlke, 1961 (Symphurus)
- rhytisma Lãpez S., 1983 (Cichlasoma), see Amphilophus rhytisma
- riali Rafinesque, 1810 (Onus), see Merluccius merluccius
- ribeirae Eigenmann, 1911 (Astyanax)
- ribeirensis Langeani, 1990 (Neoplecostomus)
- Ribeiroa Jordan, 1920 (Agonidae), see Agonus
- Ribeiroclinus Pinto, 1965 (Clinidae)
- ribeiroi (Mixobrycon)
- ribeiroi Miller, 1965 (Bellator)
- ribeiroi Haseman, 1911 (Glanidium)
- ribeiroi Eschmeyer, 1990 (Glyptothorax)
- ribeiroi ( Rajaagassizi)
- ribeiroi Eigenmann, 1907 (Cheirodon), see Mixobrycon ribeiroi
- ribeiroi Fowler & Bean, 1923 (Xystreurys), see Paralichthys orbignyana
- ribeiroi Gomes, 1955 (Pseudotocinclus), see Schizolecis guntheri
- ribeiroi Hora, 1921 (Laguvia), see Glyptothorax ribeiroi
- ribeiroi Pinto, 1970 (Antobrantia), see Ophichthus ophis
- riberae Cardona & Guerao, 1994 (Astroblepus)
- ribulorum (Chaetodon)
- ricae G©ry, 1977 (Bryconamericus)
- ricardi Cuvier, 1828 (Mesoprion), see Lutjanus mahogoni
- ricardoae Seegers, 1996 (Synodontis)
- ?ricasolii Di Caporiacco, 1935 (Gobius)
- ricei Lee et al., 1980 (Cottus)
- ricei Das, 1966 (Anabas testudineus), see Anabas testudineus
- ricei Nelson, 1876 (Cottopsis), see Cottus ricei
- richardi Iwamoto, 1990 (Sphagemacrurus)
- richardi Fowler, 1925 (Jordanites), see Eurypharynx pelecanoides
- richardi Fowler, 1925 (Rouleina), see Eurypharynx pelecanoides
- richardi Holbrook, 1855 (Caranx), see Caranx latus
- richardi Roule, 1914 (Eurypharynx), see Eurypharynx pelecanoides
- richardi Vaillant, 1888 (Nemichthys), see Serrivomer beanii
- richardi Valenciennes, 1847 (Hemiramphus), see Hyporhamphus unifasciatus
- richardi Weber, 1913 (Macrurus), see Sphagemacrurus richardi
- richardi Zugmayer, 1913 (Echiostoma), see Photonectes margarita
- ?richardii Suckley, 1861 (Salmo)
- richardsoni (Wongratana, 1983) (Sardinella)
- richardsoni Goren, 1974 ( Aphaniusdispar)
- richardsoni T¥ning, 1932 (Diaphus)
- richardsoni Bleeker, 1876 (Pseudopentaceros)
- richardsoni Allen & Randall, 1974 (Pomachromis)
- richardsoni Gibbs, 1964 (Astronesthes)
- richardsoni Vladykov & Follett, 1965 (Lampetra)
- richardsoni Stehmann, 1973 (Bathyraja)
- ?richardsoni Kaup, 1858 (Phycis)
- richardsoni Agassiz, 1850 (Cottus), see Cottus bairdii
- richardsoni Boulenger, 1907 (Cyprinodon), see Aphanius dispar richardsoni
- richardsoni Castelnau, 1872 (Labrichthys), see Notolabrus tetricus
- richardsoni Castelnau, 1872 (Therapon), see Bidyanus bidyanus
- richardsoni Castelnau, 1873 (Chatoessus), see Nematalosa erebi
- richardsoni Fowler, 1908 (Lepidaplois), see Bodianus bilunulatus
- richardsoni Garrick, 1961 (Raja), see Bathyraja richardsoni
- richardsoni Gìnther, 1859 (Tephraeops), see Girella tephraeops
- richardsoni Gìnther, 1874 (Rhamphocottus), see Rhamphocottus richardsonii
- richardsoni Harper & Nichols, 1919 (Catostomus), see Catostomus commersonii
- richardsoni Hatooka, 1984 (Gymnothorax), see Gymnothorax richardsonii
- richardsoni Hubbs & Green, 1926 (Notropis heterodon), see Notropis texanus
- richardsoni Jordan & Snyder, 1908 (Ulua), see Ulua mentalis
- richardsoni Masuda et al., 1984 (Rhamphocottus), see Rhamphocottus richardsonii
- richardsoni Poey, 1852 (Chauliodus), see Astronesthes richardsoni
- richardsoni Smith, 1844 (Pentaceros), see Pseudopentaceros richardsoni
- richardsoni Snyder, 1909 (Abudefduf), see Pomachromis richardsoni
- richardsoni Wongratana, 1983 (Clupeonia), see Sardinella richardsoni
- Richardsonia Castelnau, 1872 (Pentacerotidae), see Paristiopterus
- Richardsonia Steindachner, 1866 (Retropinninae), see Retropinna
- Richardsonichthys Smith, 1958 (Aploactinidae)
- richardsonii Castle & McCosker, 1986 (Gymnothorax)
- richardsonii Shrestha, 1978 (Schizothorax)
- richardsonii (Chelon)
- richardsonii (Scorpis)
- richardsonii Gìnther, 1874 (Rhamphocottus)
- ?richardsonii Steindachner, 1866 (Eleotris)
- ?richardsonii Gìnther, 1866 (Coregonus)
- richardsonii Bleeker, 1852 (Muraena), see Gymnothorax richardsonii
- richardsonii Bleeker, 1853 (Gobius), see Stenogobius gymnopomus
- richardsonii Bleeker, 1854 (Callionymus), see Repomucenus curvicornis
- richardsonii Bleeker, 1855 (Alepisaurus), see Alepisaurus ferox
- richardsonii Cuvier, 1830 (Corvina), see Aplodinotus grunniens
- richardsonii Dum©ril, 1870 (Acipenser), see Acipenser fulvescens
- richardsonii Dum©ril, 1870 (Huso), see Acipenser fulvescens
- richardsonii Dum©ril, 1870 (Hymenolomus), see Syngnathus hymenolomus
- richardsonii Gill, 1862 (Retropinna), see Retropinna retropinna
- richardsonii Gray, 1832 (Cyprinus), see Schizothorax richardsonii
- richardsonii Gìnther, 1859 (Lethrinus), see Lethrinus haematopterus
- richardsonii Gìnther, 1862 (Odax), see Haletta semifasciata
- richardsonii Gìnther, 1862 (Plectropoma), see Othos dentex
- richardsonii Gìnther, 1869 (Anthias), see Caesioperca lepidoptera
- richardsonii Heckel, 1837 (Trachidermus), see Cottus asper
- richardsonii Jordan, 1876 (Eutychelithus), see Aplodinotus grunniens
- richardsonii Nakabo, 1984 (Repomucenus), see Repomucenus curvicornis
- richardsonii Smith, 1846 (Mugil), see Chelon richardsonii
- richardsonii Steindachner, 1867 (Pseudolabrus var. ), see Pseudolabrus guentheri
- richardsonii Thomson, 1986 (Liza), see Chelon richardsonii
- Richardsonius Girard, 1856 (Cyprinidae)
- richei Whitley, 1947 (Contusus)
- ?richei Bleeker, 1855 (Gastrophysus)
- richei Fr©minville, 1813 (Tetrodon), see Contusus richei
- richersoni Parenti, 1984 (Orestias)
- Richia Coker, 1926 (Etheostomatinae), see Etheostoma
- Richiella Coker, 1927 (Etheostomatinae), see Etheostoma
- ?richii Cuvier, 1830 (Gerres)
- richmondi Fowler & Bean, 1928 (Halichoeres)
- richmondia Whitehead, 1985 (Potamalosa)
- richmondia Macleay, 1879 (Clupea), see Potamalosa richmondia
- rickettsi Schultz, 1942 (Hypsoblenniops), see Hypsoblennius gentilis
- ?ricnorhynchus McClelland, 1839 (Gobio)
- Ricola Isbrìcker & Nijssen, 1978 (Loricariinae)
- ?ricordii Dum©ril, 1858 (Echeneis)
- rictolata Garman, 1899 (Bothrocaropsis), see Bothrocara alalongum
- Rictugobius Koumans in Smith, 1932 (Gobiidae), see Waitea
- rictuosus Murdy, 1989 (Parapocryptes)
- rictuosus Valenciennes, 1837 (Apocryptes), see Parapocryptes rictuosus
- rictus Garman, 1899 (Xenomystax), see Xenomystax atrarius
- Ricuzenius Jordan & Starks, 1904 (Cottidae)
- riddlei Eigenmann, 1903 (Toxus), see Girardinus creolus
- riddlei Eigenmann, 1908 (Pristella), see Pristella maxillaris
- riddlei Meek, 1907 (Hemigrammus), see Pristella maxillaris
- riddlei Meek, 1907 (Holopristes), see Pristella maxillaris
- ridens Roberts, 1982 (Gastromyzon)
- ridens Yoshino, 1984 (Tenacigobius)
- ridens Smith, 1959 (Bryaninops), see Tenacigobius ridens
- ridgwayi (Halosaurus)
- ridgwayi Fowler, 1934 (Halosauropsis), see Halosaurus ridgwayi
- rieffeli Kaup, 1873 (Satyrichthys)
- rieffeli Kaup, 1859 (Peristethus), see Satyrichthys rieffeli
- Riekertia Smith, 1952 (Batrachoididae)
- riemling Hermann, 1804 (Cyprinus), see Alburnoides bipunctatus
- rierai Heemstra, 1995 (Narcine)
- rierai Lloris & Rucabado, 1991 (Heteronarce), see Narcine rierai
- riesei G©ry, 1966 (Axelrodia)
- rifti Kotlyar, 1986 (Hoplostethus)
- riggenbachi Wildekamp et al., 1986 (Aphyosemion)
- riggenbachi Ahl, 1924 (Fundulopanchax), see Aphyosemion riggenbachi
- riggenbachi Ahl, 1924 (Fundulus), see Aphyosemion riggenbachi
- riggenbachi Ahl, 1927 (Anabas), see Ctenopoma petherici
- riggenbachi Gosse, 1986 (Ctenopoma), see Ctenopoma petherici
- riggenbachi Gìnther, 1902 (Barbus), see Barbus fritschii
- riggenbachi Radda, 1971 (Chromaphyosemion), see Aphyosemion riggenbachi
- riggsi Richards & Saksena, 1977 (Lepidotrigla), see Lepidotrigla spiloptera
- ?rigidus Spix & Agassiz, 1829 (Pimelodus)
- rigilius Prince Akihito, 1984 (Istigobius)
- rigilius Herre, 1953 (Pallidogobius), see Istigobius rigilius
- rigoletto Smith, 1951 (Naso), see Naso brachycentron
- ?rigonis Whitley, 1938 ( Ophiocaraaporos)
- riisei Gill, 1858 (Corynopoma)
- rijgersmaei Cope, 1871 (Ocyurus), see Ocyurus chrysurus
- rikuzenius Jordan & Starks, 1904 (Dexistes)
- rikuzenius Jordan & Snyder, 1901 (Urocampus), see Urocampus nanus
- rilla Lacep¨de, 1803 (Salmo), see Salmo salar
- rilli Chaudhuri, 1912 (Labeo), see Labeo dero
- rim (Scomber)
- rimae Anderson, 1989 (Pachycara)
- rimator Jordan & Swain, 1884 (Haemulon), see Haemulon aurolineatum
- rimensis Eschmeyer & Herald, 1983 (Oligocottus)
- rimensis Greeley, 1899 (Rusciculus), see Oligocottus rimensis
- Rimicola Jordan & Evermann in Jordan, 1896 (Gobiesocinae)
- rimiculus Gilbert & Snyder, 1898 (Catostomus)
- rimosus Goode & Bean, 1885 (Etropus)
- Rineloricaria Bleeker, 1862 (Loricariinae)
- ringens (Lestidium)
- ringens Jenyns, 1842 (Engraulis)
- ringens Moore, 1967 (Xanthichthys)
- ringens Bocage & Capello, 1864 (Scymnodon)
- ?ringens Osbeck, 1770 (Perca)
- ringens Jordan & Evermann, 1905 (Hippocampus), see Hippocampus kuda
- ringens Jordan & Gilbert, 1880 (Sudis), see Lestidium ringens
- ringens Linnaeus, 1758 (Balistes), see Xanthichthys ringens
- ringens Lowe, 1852 (Phaenodon), see Astronesthes niger
- ringens authors (Lestidiops), see Lestidium ringens
- ringsjoensis Malm, 1877 (Coregonus lavaretus f. ), see Coregonus megalops
- ringueleti Gosztonyi, 1977 (Piedrabuenia)
- Rinoctes Parr, 1952 (Alepocephalidae)
- riodourensis (Spaniblennius)
- riodourensis Metzelaar, 1919 (Blennius), see Spaniblennius riodourensis
- riojae Fowler, 1915 (Rhamdia), see Rhamdia quelen
- riojae Ortega & Vari, 1986 (Rhamdia), see Rhamdia quelen
- riojai Solãrzano & Lãpez, 1966 (Chirostoma)
- riojanum Berg [C.], 1897 (Pygidium), see Trichomycterus riojanus
- riojanum Burgess, 1989 (Pygidium), see Trichomycterus riojanus
- riojanus Burgess, 1989 (Trichomycterus)
- riomuniensis Thys van den Audenaerde, 1981 (Nanochromis)
- rionica Kamensky, 1899 (Barbus tauricus var. ), see Barbus tauricus
- Rioraja Whitley, 1939 (Rajidae), see Raja
- rios Bleeker, 1851 (Pangasius), see Pangasius micronema
- riparium Poey, 1875 (Holocentrum), see Sargocentron vexillarium
- ?ripilepis Richardson, 1846 (Gobius)
- ripleyi Doi, 1997 (Homaloptera)
- ripleyi Fowler, 1940 (Homalopterula), see Homaloptera ripleyi
- riqueti Roule, 1902 (Atherina), see Atherina boyeri
- risae Vladykov & Petit, 1930 (Leuciscus svallize zrmanjae nat. ), see Leuciscus cephalus
- Risor Ginsburg, 1933 (Gobiidae)
- risso (Arctozenus)
- risso Goode & Bean, 1896 (Electrona)
- risso Fricke, 1982 (Callionymus)
- risso Bonaparte, 1840 (Paralepis), see Arctozenus risso
- risso Cocco, 1829 (Scopelus), see Electrona risso
- risso Paxton et al., 1989 (Notolepis), see Arctozenus risso
- risso Risso, 1810 (Stolephorus), see Synodus saurus
- risso Risso, 1827 (Alpismaris), see Synodus saurus
- risso Valenciennes, 1835 (Atherina), see Atherina boyeri
- rissoanum Sarato, 1887 (Nansenia), see Nansenia oblita
- rissoanus Bleeker, 1874 (Polyacanthonotus)
- rissoanus De Filippi & Verany, 1857 (Notacanthus), see Polyacanthonotus rissoanus
- ?rissoi Kaup, 1856 (Tilurus)
- rissoi Fricke, 1982 (Callionymus), see Callionymus risso
- rissoi Giglioli, 1880 (Trachurus), see Trachurus picturatus
- rissoi Gìnther, 1861 (Atherina), see Atherina boyeri
- rissoi Krefft & Bekker, 1973 (Scopelus), see Electrona risso
- rissoi Post, 1973 (Notolepis), see Arctozenus risso
- rissoi Post, 1973 (Paralepis), see Arctozenus risso
- rissoi Schinz, 1840 (Leuciscus), see Leuciscus cephalus
- rissoi Valenciennes, 1839 (Crenilabrus), see Symphodus ocellatus
- rissoii Swainson, 1838 (Lepidion), see Lepidion lepidion
- Rissola Jordan & Evermann, 1896 (Ophidiinae), see Ophidion
- ?risua Hamilton, 1822 (Polynemus)
- Rita Bleeker, 1853 (Ritinae)
- rita Shrestha, 1978 (Rita)
- rita Hamilton, 1822 (Pimelodus), see Rita rita
- ritae G©ry, 1965 (Klausewitzia)
- ritchieana McClelland, 1842 (Schizothorax), see Schizothorax labiatus
- ritense Haseman, 1911 (Heterogramma), see Apistogramma borellii
- Ritinae (Bagridae)
- ritoides Valenciennes, 1840 (Arius), see Rita rita
- ritteri Starks & Morris, 1907 (Pleuronichthys)
- ritteri Gilbert, 1915 (Xeneretmus)
- ritteri Jordan & Fowler, 1903 (Centroscyllium)
- ritteri Kanayama, 1991 (Xenertmus), see Xeneretmus ritteri
- riukianus Schmidt, 1931 (Pseudochromichthys), see Plesiops coeruleolineatus
- riukiuensis Aoyagi, 1954 (Dinematichthys)
- riukiuensis Fowler, 1946 (Holotrachys), see Plectrypops lima
- riukiuensis Wakiya, Evermann & Tanaka, 1927 (Uraspis), see Uraspis secunda
- Riukiuia Fowler, 1946 (Gobiidae), see Hetereleotris
- riusensis Steinmann, 1950 (Coregonus lavaretus nat. ), see Coregonus suidteri
- ?rivalis Fabricius, 1780 (Salmo)
- rivalis Peters, 1869 (Syngnathus spicifer var. ), see Hippichthys heptagonus
- Rivasella Fern¡ndez-Y©pez, 1948 (Curimatinae), see Steindachnerina
- rivasi Barus & Wohlgemuth, 1994 ( Girardinusmicrodactylus)
- rivasi Rodriguez, 1997 (Poecilia)
- rivasi Stephens, 1970 (Acanthemblemaria)
- rivasi Fern¡ndez-Y©pez, 1950 (Apuredoras)
- rivasi Franz & Burgess, 1983 (Limia), see Poecilia rivasi
- ?rivatoni Bourret, 1985 (Diaphus)
- rivatoni Fricke, 1993 (Callionymus gardineri), see Callionymus gardineri
- riverendi ( Cyprinodonvariegatus)
- riverendi Poey, 1860 (Trifarcius), see Cyprinodon variegatus riverendi
- riveri Bigelow & Schroeder, 1944 (Apristurus)
- riveri Das, 1966 (Anabas testudineus), see Anabas testudineus
- Riverina Castelnau, 1872 (Percichthyinae), see Macquaria
- riverina Macleay, 1881 (Murrayia), see Macquaria australasica
- riverinae Macleay, 1881 (Nannoperca), see Nannoperca australis
- riveroi Banarescu, 1971 (Paralaubuca)
- riveroi Fowler, 1935 (Culter), see Paralaubuca riveroi
- riverosi Fowler, 1951 (Blennius), see Hypsoblennius sordidus
- riversandersoni (Diplacanthopoma)
- riversandersoni Miller, 1974 (Peristedion)
- rivers-andersoni Alcock, 1894 (Peristethium), see Peristedion riversandersoni
- rivers-andersoni Alcock, 1895 (Diplacanthopoma), see Diplacanthopoma riversandersoni
- riversandersoni Alcock, 1894 (Peristethium), see Peristedion riversandersoni
- riveti Pellegrin, 1907 (Astyanax), see Bryconamericus brevirostris
- riveti Pellegrin, 1907 (Tetragonopterus), see Bryconamericus brevirostris
- rivoliana Valenciennes, 1833 (Seriola)
- rivularis (Abbottina)
- ?rivularis Lìtken, 1875 (Tetragonopterus)
- rivularis Ayres, 1855 (Salmo), see Phoxinus phoxinus
- rivularis Basilewsky, 1855 (Gobio), see Abbottina rivularis
- rivularis Berg, 1914 (Pseudogobio), see Abbottina rivularis
- rivularis Berg, 1949 (Pseudogobio), see Abbottina rivularis
- rivularis Larraáaga, 1923 (Silurus), see Rhamdia quelen
- rivularis Pallas, 1773 (Salmo), see Phoxinus phoxinus
- rivularum Larraáaga, 1925 (Chaetodon multi-spinosus vel), see Chaetodon rivulorum
- rivulata Allen & Randall, 1977 (Canthigaster)
- rivulata (Genyoroge), see Lutjanus rivulatus
- rivulata Cuvier, 1828 (Diacope), see Lutjanus rivulatus
- rivulata Gìnther, 1860 (Chromis), see Aequidens rivulatus
- rivulata Temminck & Schlegel, 1845 (Equula), see Leiognathus rivulatus
- rivulatoides Bleeker, 1847 (Scarus), see Scarus rivulatus
- rivulatum Burgess, 1989 (Trichomycterus), see Trichomycterus rivulatus
- rivulatus (Rìppell, 1830) (Istiblennius)
- rivulatus Ortega & Vari, 1986 (Aequidens)
- rivulatus Allen & Robertson, 1994 (Cirrhitus)
- rivulatus Dor, 1984 (Gobiodon)
- rivulatus Uyeno & Yabumoto, 1984 (Leiognathus)
- rivulatus Kyushin et al., 1977 (Lutjanus)
- rivulatus Valenciennes, 1840 (Scarus)
- rivulatus Heemstra & Randall, 1986 (Epinephelus)
- rivulatus Forssk¥l, 1775 (Siganus)
- rivulatus Valenciennes, 1846 (Trichomycterus)
- rivulatus Bennett, 1835 (Dentex), see Gymnocranius grandoculis
- rivulatus Cuvier, 1818 (Diodon), see Chilomycterus schoepfii
- rivulatus Klunzinger, 1870 (Gymnocranius), see Gymnocranius grandoculis
- rivulatus Poey, 1860 (Serranus), see Mycteroperca tigris
- rivulatus Rìppell, 1830 (Gobius), see Gobiodon rivulatus
- rivulatus Rìppell, 1830 (Salarias), see Istiblennius rivulatus
- rivulatus Rìppell, 1830 (Salaris), see Istiblennius rivulatus
- rivulatus Rìppell, 1837 (Balistes), see Pseudobalistes fuscus
- rivulatus Rìppell, 1838 (Dentex), see Gymnocranius grandoculis
- rivulatus Temminck & Schlegel, 1850 (Tetraodon), see Canthigaster rivulata
- rivulatus Valenciennes, 1830 (Serranus), see Epinephelus rivulatus
- rivulatus Valenciennes, 1840 (Cheilinus), see Cheilinus trilobatus
- rivulatus Valenciennes, 1846 (Cirrhites), see Cirrhitus rivulatus
- Rivulichthys Myers, 1927 (Rivulinae), see Trigonectes
- rivulicola (Physoschistura)
- rivulicola Hora, 1929 (Nemacheilus), see Physoschistura rivulicola
- rivulicola Hora, 1929 (Nemachilus), see Physoschistura rivulicola
- rivulicola Menon, 1987 (Noemacheilus), see Physoschistura rivulicola
- Rivulidae (Cyprinodontiformes)
- rivulina Swainson, 1839 (Diacope), see Lutjanus rivulatus
- Rivulinae (Rivulidae)
- rivuloides Lu et al., 1977 (Gobio gobio), see Gobio gobio
- rivuloides Nichols, 1925 (Gobio), see Gobio gobio
- rivulorum (Chaetodon)
- Rivulus Poey, 1860 (Rivulinae)
- roanoka Lee et al., 1980 (Percina)
- roanoka Jordan & Jenkins, 1889 (Etheostoma), see Percina roanoka
- roanokense Raney & Lachner, 1947 (Hypentelium)
- robalito Jordan & Gilbert, 1882 (Centropomus)
- robbersi McAllister, 1990 (Atherinella)
- robbersi Fowler, 1950 (Adenops), see Atherinella robbersi
- robbianus Smith, 1865 (Erpetoichthys), see Erpetoichthys calabaricus
- robbianus Smith, 1875 (Synodontis), see Synodontis schall
- robbyi Gilbert & Tyler, 1997 (Apogon)
- robecchii Steindachner & Bellotti, 1887 (Semicossyphus), see Semicossyphus reticulatus
- robecchii Vinciguerra, 1893 (Clarias), see Clarias gariepinus
- robensis Whitley, 1948 (Histiogamphelus maculatus), see Histiogamphelus briggsii
- roberti Cervigãn, Cipriani, Fischer, Garibaldi, Hendrickx, Lemus, M¡rquez, Poutiers, Rob, 1992 (Hyporhamphus)
- roberti (Haplochromis)
- roberti Mìller & Troschel, 1848 (Exocoetus), see Hirundichthys affinis
- roberti Pellegrin, 1913 (Astatotilapia), see Haplochromis roberti
- roberti Valenciennes, 1847 (Hemiramphus), see Hyporhamphus roberti
- robertsi Parenti, 1989 (Neostethus)
- robertsi Collette, 1982 (Zenarchopterus)
- robertsi (Hyphessobrycon)
- robertsi Siebert, 1991 (Acanthopsoides)
- robertsi Kottelat, 1990 (Schistura)
- robertsi Springer, 1981 (Omobranchus)
- robertsi G©ry, 1964 (Moenkhausia)
- robertsi Greenwood, 1987 (Limbochromis)
- robertsi Stiassny, 1989 (Tylochromis)
- robertsi Randall & Hoese, 1995 (Plectranthias)
- robertsi del Cerro & Lloris, 1997 (Pterygotrigla)
- robertsi Kailola, 1990 (Arius)
- robertsi Poll, 1974 (Synodontis)
- robertsi Vreven & Teugels, 1996 (Aethiomastacembelus)
- robertsi Hulley, 1970 (Raja)
- ?robertsi Banister, 1984 (Varicorhinus)
- robertsi Jordan & Rutter, 1897 (Stolephorus), see Cetengraulis edentulus
- robertsi Thys van den Audenaerde & Loiselle, 1971 (Nanochromis), see Limbochromis robertsi
- robertsii (Mobula), see Mobula hypostoma
- robertsii Boulenger, 1897 (Ceratobatis), see Mobula hypostoma
- robertsoni Parenti, 1981 (Fundulopanchax)
- robertsoni (Amphilophus)
- robertsoni Allen, 1995 (Thalassoma)
- robertsoni Conkel, 1993 (Cichlasoma), see Amphilophus robertsoni
- robertsoni Radda & Scheel, 1974 (Aphyosemion), see Fundulopanchax robertsoni
- robertsoni Radda, 1977 (Paludopanchax), see Fundulopanchax robertsoni
- robertsoni Regan, 1905 (Cichlosoma), see Amphilophus robertsoni
- Robia (Caulophrynidae)
- robiginosa (Pangio)
- robiginosus Raut, 1957 (Acanthophthalmus), see Pangio robiginosa
- robineae Burgess, 1983 (Corydoras)
- robinii Valenciennes, 1840 (Hypostomus)
- robinsae Sulak & Shcherbachev, 1997 (Ilyophis)
- robinsi Bæhlke, 1997 (Gymnothorax)
- robinsi Iwamoto, 1997 (Trachonurus)
- robinsi Fahay, 1992 (Ophidion)
- robinsi Bæhlke & Randall, 1968 (Apogon)
- robinsi Garzãn-Ferreira & Acero P., 1991 (Priolepis)
- robinsi Gilmore, 1997 (Lipogramma)
- robinsi Smith-Vaniz, 1997 (Opistognathus)
- robinsi Topp & Hoff (ex Jutare), 1972 (Bothus)
- robinsi Richards, 1997 (Lepidotrigla)
- robinsi Schofield & Burgess, 1997 (Etmopterus)
- robinsi Wisner & McMillan, 1995 (Myxine), see Myxine robinsorum
- Robinsia Bæhlke & Smith, 1967 (Chlopsidae)
- Robinsichthys (Gobiidae)
- robinsoni Heemstra, 1986 (Oplegnathus)
- robinsoni Fowler, 1929 (Parapercis)
- robinsoni Regan, 1921 (Parabembras)
- robinsoni Fowler, 1941 (Rhamdella)
- robinsoni Fowler, 1934 (Rhinogobius), see Papillogobius reichei
- robinsoni Gilchrist & Thompson, 1908 (Chrysophrys), see Acanthopagrus berda
- robinsoni Gilchrist & Thompson, 1908 (Umbrina), see Umbrina ronchus
- robinsoni Gilchrist & Thompson, 1909 (Dentex), see Gymnocranius grandoculis
- robinsoni Gilchrist & Thompson, 1913 (Barbus), see Barbus natalensis
- robinsoni Gilchrist & Thompson, 1914 (Platyglossus), see Nelabrichthys ornatus
- robinsoni Kyushin et al., 1977 (Gymnocranius), see Gymnocranius grandoculis
- robinsoni Regan, 1916 (Hoplegnathus), see Oplegnathus robinsoni
- robinsoni Regan, 1916 (Scarostoma), see Oplegnathus robinsoni
- robinsonii Clarke, 1899 (Galaxias), see Galaxias brevipinnis
- robinsorum Wisner & McMillan, 1995 (Myxine)
- ?robinsorum Cohen, 1973 (Calamopteryx)
- ?robolo Lacep¨de, 1803 (Lepisosteus)
- roborowskii Herzenstein, 1891 (Gymnocypris), see Gymnocypris przewalskii
- ?robsoni Hector, 1875 (Leptoscopus)
- robusta Osãrio, 1911 (Muraena)
- robusta Randall & Greenfield, 1996 (Myripristis)
- robusta Dahl, 1955 (Saccoderma)
- robusta Ding, 1994 (Triplophysa)
- robusta Baird & Girard, 1853 (Gila)
- robusta Kullander, 1986 (Bujurquina)
- robusta Mead & De Falla, 1965 (Rosenblattia)
- robusta Stead, 1908 (Sillago)
- robusta Ding, Fu & Ye, 1991 (Pareuchiloglanis)
- robusta Boeseman, 1966 (Sundagagata)
- ?robusta Herre, 1923 (Moringua)
- ?robusta Wu, 1939 (Botia)
- ?robusta Rutter, 1903 (Agosia)
- ?robusta Abe, 1976 (Nansenia)
- ?robusta Osburn & Nichols, 1916 (Hermosilla)
- ?robusta Yu, Kwang & Ni, 1986 (Siniperca)
- robusta Burgess, 1989 (Gagata), see Nangra itchkeea
- robusta Couch, 1832 (Perca), see Epinephelus guaza
- robusta Gìnther, 1866 (Belone), see Tylosurus choram
- robusta Mirza & Awan, 1973 (Nangra), see Nangra itchkeea
- robusta Regan, 1904 (Oxyloricaria), see Sturisoma robustum
- robusta Schultz, 1953 (Rhaphiobelone), see Strongylura incisa
- robusta Smith & Radcliffe, 1911 (Amia), see Apogon cookii
- robustior Walecki, 1863 (Squalius vulgaris var. ), see Leuciscus leuciscus
- robustula Allen [W. R.], 1942 (Curimata), see Steindachnerina guentheri
- robustula Ortega & Vari, 1986 (Curimata), see Steindachnerina guentheri
- robustulus Ortega & Vari, 1986 (Hyphessobrycon)
- robustulus Cope, 1870 (Hemigrammus), see Hyphessobrycon robustulus
- robustum Gìnther, 1862 (Laemonema)
- robustum Ginsburg, 1933 (Gobiosoma)
- robustum Isbrìcker, 1980 (Sturisoma)
- ?robustum Meek & Hildebrand, 1913 (Megalonema)
- robustum Clarke, 1879 (Tripterygium), see Forsterygion varium
- robustus Gìnther, 1866 (Hemiramphus)
- robustus Menezes, 1969 (Oligosarcus)
- robustus Ogilby, 1897 (Spratelloides)
- robustus (Acanthorhodeus)
- robustus Ahl, 1935 (Nothobranchius)
- robustus Parenti, 1984 (Orestias)
- robustus Hubbs & Turner, 1937 (Alloophorus)
- robustus Costa, 1995 (Millerichthys)
- robustus McCulloch, 1911 (Solegnathus)
- robustus Smith & Smith, 1986 (Valamugil)
- robustus Smith & Radcliffe, 1913 (Bassozetus)
- robustus Goode & Bean, 1896 (Benthocometes)
- robustus Machida, 1984 (Oligopus)
- robustus Gìnther, 1860 (Chaetodon)
- robustus Johnson, 1985 (Melanochromis)
- robustus Skelton & Teugels, 1991 (Serranochromis)
- robustus Gilchrist & Thompson, 1908 (Clinus)
- robustus Gon, 1986 (Epigonus)
- robustus Nakamura & Fujii, 1983 (Tongaichthys)
- robustus Kyushin et al., 1977 (Choerodon)
- robustus Gìnther, 1873 (Cynoglossus)
- robustus Gill & Townsend, 1897 (Hippoglossoides)
- robustus Peden, 1970 (Nautichthys)
- robustus Inger & Chin, 1959 (Leiocassis)
- robustus Nijssen & Isbrìcker, 1980 (Corydoras)
- robustus Maul, 1973 (Scopeloberyx)
- robustus Imai, 1941 (Leptostomias)
- robustus Gomon et al., 1994 (Anoplocapros)
- robustus (Carcharias)
- ?robustus Ayres, 1855 (Mylopharodon)
- ?robustus Mohr, 1927 (Myxus)
- ?robustus Meek, 1912 (Astyanax)
- ?robustus De Vis, 1884 (Eleotris)
- ?robustus Deng, Xiong & Zhan, 1985 (Centrophorus)
- robustus Arai & Akai, 1988 (Acheilognathus), see Acanthorhodeus robustus
- robustus Ayres, 1854 (Clypeocottus), see Enophrys bison
- robustus Barnard, 1927 (Parahynnodus), see Epigonus robustus
- robustus Bean, 1892 (Fundulus), see Alloophorus robustus
- robustus Espinosa P©rez et al., 1993 (Allophorus), see Alloophorus robustus
- robustus Fourmanoir, 1977 (Luzonichthys), see Luzonichthys waitei
- robustus Fraser-Brunner, 1941 (Strophiurichthys), see Anoplocapros robustus
- robustus Gilbert & Hubbs, 1916 (Cetonurus), see Cetonurus globiceps
- robustus Gilchrist & Thompson, 1917 (Pelmatochromis), see Serranochromis giardi
- robustus Goode & Bean, 1886 (Neobythites), see Benthocometes robustus
- robustus Gìnther (ex Schlegel), 1859 (Ambassis), see Parambassis wolffii
- robustus Gìnther, 1861 (Mugil), see Valamugil robustus
- robustus Gìnther, 1862 (Chaetobranchus), see Chaetobranchus flavescens
- robustus Gìnther, 1862 (Pomacentrus), see Abudefduf concolor
- robustus Gìnther, 1862 (Xiphochilus), see Choerodon robustus
- robustus Gìnther, 1864 (Auchenipterus), see Parauchenipterus galeatus
- robustus Gìnther, 1864 (Hemichromis), see Serranochromis robustus
- robustus Gìnther, 1866 (Exocoetus), see Cheilopogon pinnatibarbatus
- robustus Gìnther, 1866 (Hemirhamphus), see Hemiramphus robustus
- robustus Gìnther, 1867 (Cristiceps), see Heteroclinus perspicillatus
- robustus Gìnther, 1883 (Cynolebias), see Millerichthys robustus
- robustus Gìnther, 1887 (Melamphaes), see Scopeloberyx robustus
- robustus Hildebrand, 1946 (Hypsoblennius), see Hypsoblennius paytensis
- robustus Kessler, 1876 (-nemacheilus), see Triplophysa robusta
- robustus Kessler, 1876 (Nemachilus), see Triplophysa robusta
- robustus Maug© & Bauchot, 1984 (Byssochaetodon), see Chaetodon robustus
- robustus Meek, 1902 (Notropis), see Notropis braytoni
- robustus Miller & Hubbs, 1974 (Rivulus), see Millerichthys robustus
- robustus Nichols, 1925 (Varicorhinus), see Varicorhinus barbatulus
- robustus Ogilby, 1908 (Neosilurus), see Tandanus hyrtlii
- robustus Ogilby, 1910 (Macrorhamphosus), see Macroramphosus elevatus
- robustus Ogilby, 1916 (Nemipterus), see Nemipterus furcosus
- robustus Pietschmann, 1934 (Gobiomorphus), see Asterropteryx semipunctatus
- robustus Smith & Radcliffe, 1913 (Grammonus), see Oligopus robustus
- robustus Smith, 1966 (Caboclinus), see Clinus robustus
- rocaberti Dum©ril, 1870 (Hemithylacus), see Microphis mento
- rocadasi Boulenger, 1910 (Barbus)
- rocadasi Boulenger, 1910 (Labeo)
- rocasensis Allen, 1991 (Stegastes)
- rocasensis Emery, 1972 (Eupomacentrus), see Stegastes rocasensis
- roccae Eigenmann, 1917 (Pimelodella)
- Roccus Mitchill, 1814 (Moronidae), see Morone
- rochai Ihering, 1907 (Aspidoras)
- rochai (Corydoras), see Aspidoras rochai
- rocheanus Risso, 1827 (Thynnus), see Auxis rochei
- rochebrunei (Mobula)
- rochebrunei Vaillant, 1879 (Cephaloptera), see Mobula rochebrunei
- rochefoucauldi (Bathyaethiops), see Micralestes altus
- rochefoucauldi (Brachypetersius), see Micralestes altus
- rochefoucauldi Fowler, 1936 (Micralestes), see Micralestes altus
- rochefoucauldi Paugy, 1984 (Alestopetersius), see Micralestes altus
- rochefoucauldi Paugy, 1984 (Phenacogrammus), see Micralestes altus
- rochei Mìller, 1845 (Ophidion)
- rochei Cuvier, 1829 (Auxis)
- rochei Risso, 1810 (Scomber), see Auxis rochei
- rochensis Abella, 1972 (Carcharhinus), see Carcharhinus brachyurus
- rockinghamensis Whitley, 1943 (Atherinosoma), see Atherina elongata
- ?rodactylus McClelland, 1839 (Barbus)
- rodactylus (Puntius), see Barbus rodactylus
- rodenbaughi Schultz & Chapman, 1960 (Istiblennius), see Blenniella gibbifrons
- rodens Agassiz, 1835 (Leuciscus), see Leuciscus leuciscus
- rodericensis (Kumococius)
- rodericensis Cuvier, 1829 (Platycephalus), see Kumococius rodericensis
- rodericensis Gìnther, 1876 (Mugil), see Liza macrolepis
- rodericensis Shao & Chen, 1987 (Suggrundus), see Kumococius rodericensis
- ?rodinogaster Nardo, 1827 (Trigla)
- rodo Cuvier, 1830 (Pristipoma), see Anisotremus virginicus
- ?rododactylus Gìnther, 1868 (Barbus)
- rodolphoi G©ry, 1977 (Hemiodopsis)
- rodolphoi Fowler, 1941 (Hemiodus), see Hemiodopsis rodolphoi
- rodopterus Posada, 1909 (Chalceus), see Brycon orbignyanus
- rodopterus Valenciennes, 1850 (Chalceus), see Brycon orbignyanus
- rodriguesi Pinna, 1992 (Glaphyropoma)
- ?rodriquesi von Bonde, 1934 (Holacanthus)
- rodwayi Durbin, 1909 (Hemigrammus)
- rodwayi Johnston, 1902 (Pseudochromis), see Trachinops caudimaculatus
- Roeboexodon G©ry, 1959 (Characinae)
- Roeboides Gìnther, 1864 (Characinae)
- roeboides Myers, 1924 (Rohtee), see Osteobrama cotio
- roei Nafpaktitis, 1974 (Diaphus)
- roelandti Bleeker, 1860 (Trichiurus), see Lepturacanthus savala
- roemeri Allen, 1991 (Redigobius)
- roemeri Vari, 1978 (Hephaestus)
- roemeri Weber, 1910 (Therapon), see Hephaestus roemeri
- roemeri Weber, 1911 (Gobius), see Redigobius roemeri
- roesseli G©ry, 1965 (Characidium)
- Roestes Gìnther, 1864 (Characinae)
- rofeni Miller, 1988 (Thorogobius)
- ?rofeni Springer, 1967 (Entomacrodus)
- rogaa Fowler, 1904 (Aethaloperca)
- rogaa Forssk¥l, 1775 (Perca), see Aethaloperca rogaa
- rogad insidiator, Forssk¥l (Cottus), see Platycephalus indicus
- rogad Forssk¥l, 1775 (Cottus), see Platycephalus indicus
- Rogadius Jordan & Richardson, 1908 (Platycephalidae)
- Rogenia Valenciennes in Cuvier & Valenciennes, 1847 (Clupeidae), see Clupea
- rogeri Roux, 1986 (Pomadasys)
- rogerii Cuvier, 1830 (Pristipoma), see Pomadasys rogeri
- rogersi Miyake & McEachran, 1988 (Urotrygon)
- rogersi Boulenger, 1911 (Barbus), see Barbus radiatus
- rogersi Bussing, 1987 (Rhamdia), see Rhamdia laticauda
- rogersi Jordan & Starks, 1895 (Urolophus), see Urotrygon rogersi
- rogersi Regan, 1907 (Pimelodus), see Rhamdia laticauda
- rogoaguae Costa, 1990 (Trigonectes)
- rogoaguae Pearson & Myers, 1924 (Rivulus), see Trigonectes rogoaguae
- rogoaguae Pearson, 1924 (Megalamphodus), see Hyphessobrycon megalopterus
- rohani Pellegrin, 1921 (Barbus)
- Rohanus Chu, 1935 (Cyprinidae), see Anabarilius
- rohita Shrestha, 1978 (Labeo)
- Rohita Valenciennes in Cuvier & Valenciennes, 1842 (Cyprininae), see Labeo
- rohita Hamilton, 1822 (Cyprinus), see Labeo rohita
- rohita Valenciennes, 1842 (Rohita), see Labeo rohita
- Rohitichthys Bleeker, 1859 (Cyprininae), see Labeo
- rohito¯des Bleeker, 1857 (Lobocheilos), see Osteochilus pleurotaenia
- rohitoides Bleeker, 1857 (Lobocheilos), see Osteochilus pleurotaenia
- Rohtee Sykes, 1839 (Cyprinidae)
- Rohteichthys Bleeker, 1859 (Cyprinidae)
- ?roigi Arratia & Menu-Marque, 1984 (Trichomycterus)
- roissali Bauchot & Quignard, 1973 (Symphodus)
- roissali Risso, 1810 (Lutjanus), see Symphodus roissali
- rolandi Sauvage, 1881 (Hemichromis), see Hemichromis letourneuxi
- rolfbolini Wisner, 1971 (Diaphus), see Diaphus phillipsi
- rollandi Allen, 1991 (Chrysiptera)
- rollandi Whitley, 1961 (Chromis), see Chrysiptera rollandi
- roloffi G©ry, 1972 (Odontostilbe)
- roloffi G©ry, 1968 (Ladigesia)
- roloffi (Barbus)
- roloffi Roloff, 1936 (Aphyosemion)
- roloffi Romand, 1978 (Epiplatys)
- roloffi Roloff, 1938 (Rivulus)
- roloffi Daget, 1991 (Pelvicachromis)
- roloffi Klausewitz, 1957 (Puntius), see Barbus roloffi
- roloffi Radda, 1987 (Scriptaphyosemion), see Aphyosemion roloffi
- roloffi Roloff, 1966 (Roloffia), see Aphyosemion roloffi
- roloffi Thys van den Audenaerde, 1968 (Pelmatochromis), see Pelvicachromis roloffi
- Roloffia Clausen, 1966 (Aplocheilinae), see Aphyosemion
- romana Shaw, 1803 (Muraena), see Muraena helena
- romani Mees, 1988 (Tatia)
- romanica Kottelat, 1997 (Sabanejewia)
- romanica Bacescu, 1943 (Cobitis caspia), see Sabanejewia romanica
- romanica Muus & Dahlstræm, 1968 (Cobitis), see Sabanejewia romanica
- Romanichthys Dumitrescu, Banarescu & Stoica, 1957 (Luciopercinae)
- Romanogobio Banarescu, 1961 (Cyprinidae)
- romanovi Kawraiskii, 1896 (Salmo lacustris var. ), see Salmo trutta
- romeri Allen, 1991 (Gobius), see Redigobius roemeri
- romeritus Valenciennes, 1843 (Acantholabrus), see Centrolabrus trutta
- romeroi Fowler, 1941 (Roeboides)
- romeroi Fowler, 1941 (Trichomycterus)
- romeroi Fowler, 1941 (Pygidium), see Trichomycterus romeroi
- romerus Valenciennes, 1843 (Acantholabrus), see Centrolabrus trutta
- romosa (Enchelycore), see Enchelycore ramosa
- ?ronaldi Fowler, 1938 (Monacanthus)
- Roncador Jordan & Gilbert, 1880 (Sciaenidae)
- roncador Jordan & Gilbert, 1882 (Umbrina)
- roncador Natterer, 1859 (Salmo), see Curimata vittata
- roncallii Martn Salazar, 1964 (Farlowella), see Farlowella vittata
- Ronchifex Gistel, 1848 (Bodianinae), see Bodianus
- ronchus Greenfield & Thomerson, 1997 (Bairdiella)
- ronchus Valenciennes, 1843 (Umbrina)
- ronchus Cuvier, 1830 (Corvina), see Bairdiella ronchus
- ronchus Valenciennes, 1838 (Pristipoma), see Pomadasys incisus
- rondeleti Bougis, 1959 (Raja)
- Rondeletia Goode & Bean, 1895 (Rondeletiidae)
- rondeletii (Hippocampus)
- ?rondeletii Shaw, 1803 (Pleuronectes)
- rondeletii Bleeker (ex Klein), 1863 (Glaucus), see Trachinotus ovatus
- rondeletii Bleeker, 1863 (Glaucus), see Trachinotus ovatus
- rondeletii Costa, 1842 (Trachypterus), see Trachipterus trachypterus
- rondeletii Delaroche, 1809 (Syngnathus), see Syngnathus typhle
- rondeletii Dum©ril, 1856 (Peromere), see Syngnathus typhle
- rondeletii Leach, 1818 (Xiphias), see Xiphias gladius
- rondeletii Moreau, 1881 (Thalassinus), see Prionace glauca
- rondeletii Mìller & Henle, 1839 (Carcharodon), see Carcharodon carcharias
- rondeletii Ranzani, 1839 (Orthragoriscus), see Mola mola
- rondeletii Risso, 1810 (Squalus), see Prionace glauca
- rondeletii Shaw, 1802 (Cyprinus), see Cyprinus carpio
- rondeletii Valenciennes, 1830 (Sargus), see Diplodus sargus
- rondeletii Valenciennes, 1838 (Thalassorhinus), see Prionace glauca
- rondeletii Valenciennes, 1846 (Scombresox), see Scomberesox saurus
- rondeletii Valenciennes, 1848 (Coregonus), see Coregonus lavaretus
- Rondeletiidae (Stephanoberyciformes)
- rondoni Schwassmann, 1989 (Gymnorhamphichthys)
- rondoni Eschmeyer, Editor, 1998 (Aequidens)
- rondoni Miranda-Ribeiro, 1914 (Ageneiosus)
- rondoni Isbrìcker, 1980 (Hypostomus)
- rondoni Miranda-Ribeiro, 1912 (Plecostomus), see Hypostomus rondoni
- rondoni Miranda-Ribeiro, 1918 (Acaropsis), see Aequidens rondoni
- rondoni Miranda-Ribeiro, 1918 (Heterogramma), see Apistogramma borellii
- rondoni Miranda-Ribeiro, 1920 (Rivulus), see Trigonectes balzanii
- rondoni Miranda-Ribeiro, 1920 (Urumara), see Gymnorhamphichthys rondoni
- rondoni Myers, 1927 (Rivulichthys), see Trigonectes balzanii
- rone Ascanius, 1772 (Labrus), see Symphodus melops
- ronin Jordan & Fowler, 1902 (Holacanthus), see Chaetodontoplus septentrionalis
- ronquilloi Wongratana, 1983 (Stolephorus)
- Ronquilus Jordan & Starks, 1895 (Bathymasteridae)
- roosendaali Ben-Tuvia, 1993 (Bathycongrus)
- roosendaali Weber & de Beaufort, 1916 (Congrellus), see Bathycongrus roosendaali
- ?roosevelti Ginsburg, 1939 (Pycnomma)
- ?roosevelti Evermann, 1906 (Salmo)
- roosevelti Borodin, 1927 (Pseudopimelodus), see Zungaro zungaro
- roosevelti Eigenmann, 1915 (Metynnis), see Metynnis lippincottianus
- Rooseveltia Jordan & Evermann in Jordan & Seale, 1906 (Etelinae), see Pristipomoides
- Rooseveltiella Eigenmann, 1915 (Serrasalminae), see Pygocentrus
- roquensis Martn Salazar, 1956 (Mycteroperca), see Mycteroperca interstitialis
- roraima Provenzano R., Lasso & Ponte, 1995 (Neblinichthys)
- roraimae Kullander, 1980 (Apistogramma)
- ?rore Curtiss, 1938 (Anthias)
- rosacea Heemstra & Randall, 1993 (Mycteroperca)
- rosacea Herre, 1935 (Melanotaenia), see Glossolepis multisquamatus
- rosacea Streets, 1877 (Epinephelus), see Mycteroperca rosacea
- rosaceus Durbin, 1909 (Hyphessobrycon)
- rosaceus (Leuciscus)
- rosaceus Costa, Nielsen & Luca, 2001 (Simpsonichthys)
- rosaceus Smith & Radcliffe, 1912 (Antennarius)
- rosaceus Jordan & Evermann, 1896 (Zalembius)
- rosaceus Gilbert, 1890 (Paraliparis)
- rosaceus Girard, 1854 (Sebastes)
- rosaceus Gill, 1864 (Sebastomus), see Sebastes rosaceus
- rosaceus Jordan & Gilbert, 1880 (Cymatogaster), see Zalembius rosaceus
- rosaceus Poey, 1870 (Mesoprion), see Lutjanus analis
- rosaceus Risso, 1827 (Hippocampus), see Hippocampus ramulosus
- rosae Eschmeyer & Herald, 1983 (Hyporhamphus)
- rosae Boulenger, 1910 (Barbus)
- rosae Steindachner, 1894 (Labeo)
- rosae Lucena & Lucena, 1992 (Deuterodon)
- rosae Schultz, 1943 (Pseudoplesiops)
- rosae Lee et al., 1980 (Amblyopsis)
- rosae Burgess, 1989 (Imparfinis)
- ?rosae Jordan & Evermann, 1896 (Clevelandia)
- rosae Burgess, 1989 (Heptapterus), see Imparfinis rosae
- rosae Eigenmann, 1897 (Typhlichthys), see Amblyopsis rosae
- rosae Eigenmann, 1899 (Troglichthys), see Amblyopsis rosae
- rosae Eigenmann, 1922 (Chasmocranes), see Imparfinis rosae
- rosae Eigenmann, 1922 (Chasmocranus), see Imparfinis rosae
- rosae Jordan & Gilbert, 1880 (Hemirhamphus), see Hyporhamphus rosae
- rosae Steindachner, 1908 (Joinvillea), see Deuterodon rosae
- rosaliae Howell Rivero, 1932 (Ahynnodontophis), see Gymnothorax maderensis
- rosamariae (Gymnorhamphichthys)
- rosamondae Borodin, 1928 (Hippocampus), see Hippocampus zosterae
- rosapinnis Hoedeman, 1950 (Pseuderythrinus), see Hoplerythrinus unitaeniatus
- rosapinto Smith, 1986 (Kentrocapros)
- rosapinto Smith, 1949 (Aracanostracion), see Kentrocapros rosapinto
- rosarium Dum©ril, 1870 (Acipenser), see Acipenser fulvescens
- rosarium Dum©ril, 1870 (Huso), see Acipenser fulvescens
- Rosaura Tucker, 1954 (Giganturidae), see Gigantura
- ?roschal Walbaum, 1792 (Salmo)
- rosea Toyoshima, 1985 (Lycenchelys)
- rosea Dor, 1984 (Scorpaenopsis)
- ?rosea Fourmanoir, 1985 (Parapercis)
- rosea Day, 1868 (Scorpaena), see Scorpaenopsis rosea
- rosea Gill, 1862 (Cyttopsis), see Cyttus roseus
- rosea Heemstra, 1980 (Cyttopsis), see Cyttus roseus
- rosea Popta, 1904 (Dangila), see Labiobarbus leptocheilus
- rosea Quoy & Gaimard, 1834 (Julis), see Hologymnosus doliatus
- rosea Robins & Colin, 1979 (Lipogramma), see Lipogramma roseum
- rosea Vaillant & Sauvage, 1875 (Coris), see Coris ballieui
- rosea Vaillant & Sauvage, 1875 (Hemicoris), see Coris ballieui
- rosea Valenciennes, 1830 (Diacope), see Lutjanus gibbus
- roseafascia Randall & Lubbock, 1982 (Cirrhilabrus)
- rosei Eigenmann, 1922 (Astroblepus)
- ?rosei Jordan & McGregor, 1924 (Salmo)
- roseiceps Valenciennes, 1840 (Scarus), see Bolbometopon bicolor
- roseigaster Paxton et al., 1989 (Siphamia)
- roseigaster Macleay, 1881 (Mesoprion), see Lutjanus argentimaculatus
- roseigaster Ramsey & Ogilby, 1887 (Apogon), see Siphamia roseigaster
- roseipinnis Page & Burr, 1991 (Lythrurus)
- roseipinnis Talwar & Jhingran, 1991 (Puntius)
- roseipinnis ( Apogonannularis)
- roseipinnis Clausen, 1959 (Andreasenius), see Procatopus aberrans
- roseipinnis Clausen, 1959 (Procatopus), see Procatopus aberrans
- roseipinnis Cuvier, 1829 (Apogon), see Apogon fleurieu
- roseipinnis Hay, 1885 (Notropis), see Lythrurus roseipinnis
- roseipinnis Valenciennes, 1842 (Barbus), see Puntius roseipinnis
- roseipunctata Hutton, 1880 (Labrichthys), see Pseudolabrus miles
- roseiventer Fowler, 1944 (Scarus), see Scarus vetula
- rosemariae Kullander, 1997 (Crenicichla)
- rosenbergii (Opistognathus)
- rosenbergii Bleeker, 1859-60 (Amphiprion), see Amphiprion perideraion
- rosenbergii Bleeker, 1861 (Datnia), see Mesopristes cancellatus
- rosenbergii Steindachner, 1875 (Cottoperca), see Cottoperca gobio
- rosenbergii Steindachner, 1876 (Cottoperca), see Cottoperca gobio
- Rosenblatella Shen, 1994 (Tripterygiidae)
- rosenblatti McCosker, 1974 (Letharchus)
- rosenblatti Baldwin, Johnson & Paxton, 1997 (Protoblepharon)
- rosenblatti Pietsch, 1974 (Oneirodes)
- rosenblatti Stephens, 1963 (Coralliozetus)
- rosenblatti Allen & Robertson, 1991 (Opistognathus)
- rosenblatti Bertelsen & Nielsen, 1987 (Monognathus)
- rosenblatti Chen, 1971 (Sebastes)
- rosenblatti Bussing, 1996 (Sphoeroides)
- Rosenblattia Mead & De Falla, 1965 (Epigonidae)
- Rosenblattichthys Johnson, 1974 (Scopelarchidae)
- rosengarteni Fowler, 1934 (Parathunnus), see Thunnus atlanticus
- rosenhaueri J¤ckel, 1866 (Alburnus), see Alburnus alburnus x scardinius erythrophthalmus
- rosenhaueri J¤ckel, 1866 (Alburnus), see Blicca bjoerkna x scardinius erythrophthalmus
- rosenhaueri J¤ckel, 1866 (Alburnus), see Scardinius erythrophthalmus x alburnus alburnus
- rosenhaueri J¤ckel, 1866 (Alburnus), see Scardinius erythrophthalmus x blicca bjoerkna
- roseni Mok, Lee & Chan, 1991 (Meadia)
- roseni Vari, 1989 (Curimata)
- roseni Bussing, 1988 (Brachyrhaphis)
- roseni Mago-Leccia, 1994 (Sternarchorhynchus)
- roseni Bailey & Gans, 1998 (Monopterus)
- roseni Meyer & Wischnath, 1981 (Xiphophorus), see Xiphophorus couchianus x xiphophorus variatus
- roseni Meyer & Wischnath, 1981 (Xiphophorus), see Xiphophorus variatus x xiphophorus couchianus
- roseobrunneus Macleay, 1881 (Apogonichthys), see Glossamia aprion
- roseofuscus Gilbert & Burke, 1912 (Careproctus)
- ?roseola Hastings & Shipp, 1981 (Chaenopsis)
- roseo-pictus Hutton, 1904 (Bovichthys), see Bovichtus variegatus
- roseopictus Hutton, 1904 (Bovichthys), see Bovichtus variegatus
- roseopunctatus Paugy, Gu©gan & Agn¨se, 1990 (Labeo)
- roseopunctatus Reis, Weber & Malabarba, 1990 (Hypostomus)
- roseoviridis Okamura, 1984 (Parapercis)
- roseoviridis Gilbert, 1905 (Neopercis), see Parapercis roseoviridis
- ?rosetta Valenciennes, 1844 (Leuciscus)
- roseum Gilmore & Jones, 1988 (Lipogramma)
- roseum Gilbert, 1905 (Bembradium)
- roseum Gìnther, 1880 (Propoma), see Symphysanodon typus
- roseum Miranda-Ribeiro, 1903 (Peristedion), see Peristedion altipinnis
- roseus Weitzman & Palmer, 1997 (Hyphessobrycon)
- roseus Alcock, 1891 (Physiculus)
- roseus (Bathychaunax)
- roseus (Petraites)
- roseus Cope, 1870 (Cryptotomus)
- roseus Day, 1875 (Cocotropus)
- roseus Jordan & Evermann, 1887 (Prionotus)
- roseus (Cyttus)
- ?roseus Tanaka, 1917 (Ophichthus)
- ?roseus Dabry de Thiersant, 1872 (Hemibarbus)
- ?roseus Pallas, 1814 (Blennius)
- ?roseus Valenciennes, 1837 (Amblyopus)
- ?roseus Valenciennes, 1840 (Cheilinus)
- roseus Barbour, 1941 (Chaunax), see Bathychaunax roseus
- roseus Bean, 1903 (Abramis crysoleucas), see Notemigonus crysoleucas
- roseus Bleeker, 1874 (Gunnellops), see Blennius roseus
- roseus Bonaparte, 1839 (Leuciscus), see Rutilus pigus
- roseus Castelnau, 1879 (Aphareus), see Pristipomoides filamentosus
- roseus Fischer, 1885 (Apogon), see Ambassis gymnocephalus
- roseus Gomon et al., 1994 (Heteroclinus), see Petraites roseus
- roseus G©ry, 1960 (Megalamphodus), see Hyphessobrycon roseus
- roseus Gìnther, 1861 (Cristiceps), see Petraites roseus
- roseus Heemstra, 1980 (Cyttopsis), see Cyttus roseus
- roseus Jordan, 1877 (Luxilus), see Notropis texanus
- roseus Lowe, 1843 (Zeus), see Cyttus roseus
- roseus Odenwall, 1927 (Cottus gobio var. ), see Cottus gobio
- roseus Shaw, 1796 (Pleuronectes), see Platichthys flesus
- roseus Toyoshima, 1985 (Lycenchelys), see Lycenchelys rosea
- roseus Valenciennes, 1828 (Serranus), see Variola louti
- Rosicola Jordan & Evermann, 1896 (Sebastinae), see Sebastes
- rosispinis Gill & Townsend, 1897 (Raia), see Bathyraja parmifera
- rosmarus Lacep¨de, 1802 (Holocentrus), see Epinephelus fasciatus
- rospigliosii (Orestias)
- rossi Balushkin & Fedorov, 1981 (Melanocetus)
- rossi Malmgren, 1865 (Lycodes)
- rossi Alcock, 1898 (Centrophorus), see Centroscymnus crepidater
- rossica Coad, 1981 (Garra)
- rossica Cuvier, 1829 (Acerina), see Gymnocephalus acerinus
- rossicus Berg, 1924 (Alburnoides bipunctatus), see Alburnoides bipunctatus
- rossicus Nikolskii, 1900 (Discognathus), see Garra rossica
- rossignoli Hutchins, 1986 (Perulibatrachus)
- rossignoli Roux, Rossignol & Roux, 1957 (Batrachus), see Perulibatrachus rossignoli
- rossii Richardson, 1844 (Notothenia)
- ?rossii Bleeker, 1854 (Mugil)
- ?rossii Richardson, 1835 (Salmo)
- rossii Bleeker, 1854 (Glyphisodon), see Chrysiptera unimaculata
- rossii Gill, 1862 (Macronotothen), see Notothenia rossii
- rossikowi Nikolskii, 1900 (Pseudoscaphirhynchus), see Pseudoscaphirhynchus hermanni
- rostellata Risso, 1810 (Raia), see Raja alba
- rostellatus Kaup, 1856 (Mystriophis)
- rostellatus Nilsson, 1855 (Syngnathus)
- rostellatus Richardson, 1848 (Ophisurus), see Mystriophis rostellatus
- rostellatus Valenciennes, 1842 (Rohita), see Osteochilus hasseltii
- rostellum Bradbury, 1980 (Ogcocephalus)
- rostellum Dum©ril, 1870 (Acipenser), see Acipenser brevirostrum
- rostellum Dum©ril, 1870 (Huso), see Acipenser brevirostrum
- rostrata Goode & Bean, 1896 (Aldrovandia)
- rostrata Lee et al., 1980 (Anguilla)
- rostrata Gìnther, 1868 (Botia)
- rostrata Gìnther, 1878 (Antimora)
- rostrata Goode & Bean, 1896 (Alcockia)
- rostrata (Holtbyrnia)
- rostrata (Gerres)
- rostrata Swainson, 1839 (Canthigaster)
- rostrata (Raja)
- rostrata Paxton et al., 1989 (Aptychotrema)
- rostrata Alleyne & Macleay, 1877 (Gerreomorpha), see Gerres rostrata
- rostrata Banks, 1841 (Raja), see Aptychotrema rostrata
- rostrata Bleeker (ex Kuhl & van Hasselt), 1858 (Sarcogenys), see Netuma nasuta
- rostrata Boulenger, 1899 (Tilapia), see Fossorochromis rostratus
- rostrata Castelnau, 1873 (Raja), see Raja whitleyi
- rostrata Castelnau, 1873 (Raya), see Raja whitleyi
- rostrata Faber, 1829 (Belone), see Belone belone
- rostrata Gill, 1861 (Brachyopsis), see Brachyopsis segaliensis
- rostrata Goode & Bean, 1895 (Macdonaldia), see Notacanthus rostratus
- rostrata Gronow, 1854 (Albula), see Albula vulpes
- rostrata Kaup, 1856 (Altona), see Rhamphichthys rostratus
- rostrata Lesueur, 1817 (Muraena), see Anguilla rostrata
- rostrata Shaw, 1794 (Raja), see Aptychotrema rostrata
- rostrata Spix & Agassiz, 1829 (Loricaria), see Sturisoma rostratum
- rostrata Trewavas, 1935 (Aulonocara), see Aulonocara rostratum
- rostrata van der Hoeven, 1849 (Loricaria), see Rineloricaria caracasensis
- rostratum Kailola, 1991 (Zebrasoma)
- rostratum Trewavas, 1935 (Aulonocara)
- rostratum Amaoka, Mihara & Rivaton, 1993 (Engyprosopon)
- rostratum Swainson, 1838 (Sturisoma)
- rostratum Bussing, 1987 (Cichlasoma), see Amphilophus rostratus
- rostratum Garman, 1906 (Acanthidium), see Deania calcea
- rostratum Poey, 1860 (Holocentrum), see Sargocentron praslin
- rostratus Collett, 1889 (Notacanthus)
- rostratus Parin, 1995 ( Fodiatoracutus)
- rostratus Gìnther, 1864 (Distichodus)
- rostratus Boulenger, 1899 (Paraphago)
- rostratus Drjagin, 1933 ( Catostomuscatostomus)
- rostratus Whitley, 1948 (Hypselognathus)
- rostratus Mago-Leccia, 1994 (Apteronotus)
- rostratus Mìller & Troschel, 1848 (Rhamphichthys)
- rostratus Risso, 1820 (Alepocephalus)
- rostratus Klunzinger, 1872 (Galaxias)
- rostratus Cloquet, 1817 (Chelmon)
- rostratus (Amphilophus)
- rostratus Eccles & Trewavas, 1989 (Fossorochromis)
- rostratus Girard, 1854 (Heterostichus)
- rostratus Bauchot & Quignard, 1973 (Symphodus)
- rostratus Gìnther, 1862 (Ammotretis)
- rostratus Reis & Pereira, 2000 (Loricariichthys)
- rostratus Krefft & Tortonese, 1973 (Somniosus)
- ?rostratus Quoy & Gaimard, 1824 (Ophisurus)
- ?rostratus Gronow, 1854 (Holocentrus)
- ?rostratus Borodin, 1931 (Anostomus)
- ?rostratus Gìnther, 1862 (Phycis)
- ?rostratus Valenciennes (ex Solander) [Bleeker], 1836 (Petroscirtes)
- ?rostratus Hermann, 1804 (Scomber)
- ?rostratus Gronow, 1854 (Pleuronectes)
- ?rostratus Valenciennes, 1840 (Arius)
- ?rostratus (Pardo, 1919) (Rhinobatos)
- rostratus Agassiz, 1831 (Gymnothorax), see Gymnothorax moringa
- rostratus Bloch & Schneider, 1801 (Lepadogaster), see Lepadogaster lepadogaster purpurea
- rostratus Bloch, 1786 (Tetrodon), see Canthigaster rostrata
- rostratus Bloch, 1791 (Lutjanus), see Symphodus rostratus
- rostratus Cartier, 1874 (Cheilinus), see Cheilinus oxyrhynchus
- rostratus Cuvier, 1814 (Corycus), see Symphodus rostratus
- rostratus Cuvier, 1836 (Lepidosteus), see Lepisosteus osseus
- rostratus Gill, 1865 (Rhinoscymnus), see Somniosus rostratus
- rostratus Gill, 1877 (Heros), see Amphilophus rostratus
- rostratus Gìnther, 1866 (Exocoetus), see Fodiator acutus rostratus
- rostratus Gìnther, 1875 (Acanthurus), see Zebrasoma rostratum
- rostratus Gìnther, 1878 (Bathytroctes), see Holtbyrnia rostrata
- rostratus Gìnther, 1878 (Haloporphyrus), see Antimora rostrata
- rostratus Gìnther, 1878 (Halosaurus), see Aldrovandia rostrata
- rostratus Gìnther, 1887 (Porogadus), see Alcockia rostrata
- rostratus Heckel, 1836 (Acipenser), see Acipenser stellatus
- rostratus Hildebrand, 1946 (Menticirrhus), see Menticirrhus elongatus
- rostratus Jardine, 1843 (Centrarchus), see Acaronia nassa
- rostratus Kanayama, 1984 (Brachyopsis), see Brachyopsis segaliensis
- rostratus Krefft, 1973 (Mentodus), see Holtbyrnia rostrata
- rostratus Kuhl & van Hasselt, 1858 (Sarcogenys), see Netuma nasuta
- rostratus Linnaeus, 1758 (Chaetodon), see Chelmon rostratus
- rostratus Linnaeus, 1766 (Gymnotus), see Rhamphichthys rostratus
- rostratus Lowe, 1838 (Pagellus), see Pagellus erythrinus
- rostratus Macri, 1819 (Squalus), see Cetorhinus maximus
- rostratus Meek & Hildebrand, 1913 (Stenarchus), see Apteronotus rostratus
- rostratus Meek & Hildebrand, 1913 (Sternarchus), see Apteronotus rostratus
- rostratus Mitchill, 1815 (Zeus), see Selene vomer
- rostratus Nielsen, 1997 (Alcockia), see Alcockia rostrata
- rostratus Ogilby, 1916 (Laephichthys), see Zebrasoma rostratum
- rostratus Pardo, 1919 (Rhinobatus), see Rhinobatos rostratus
- rostratus Parr, 1951 (Mentodus), see Holtbyrnia rostrata
- rostratus Poey, 1860 (Scarus), see Scarus coelestinus
- rostratus Risso, 1827 (Scymnus), see Somniosus rostratus
- rostratus Schmidt, 1909 (Leptocephalus), see Ilyophis blachei
- rostratus Seale, 1910 (Callyodon), see Scarus sordidus
- rostratus Shaw, 1803 (Scarus), see Scarus coelestinus
- rostratus Shaw, 1804 (Lophius), see Ogcocephalus nasutus
- rostratus Shaw, 1804 (Salmo), see Coregonus oxyrinchus
- rostratus Solander, 1836 (Blennius), see Petroscirtes rostratus
- rostratus Tilesius ex Pallas, 1811 (Cyprinus), see Catostomus catostomus rostratus
- rostratus Tilesius, 1813 (Agonus), see Brachyopsis segaliensis
- rostratus Tilesius, 1813 (Cyprinus), see Catostomus catostomus rostratus
- rostratus Valenciennes (ex Agassiz), 1844 (Leuciscus), see Leuciscus leuciscus
- rostratus Valenciennes (ex Kuhl & van Hasselt), 1830 (Lethrinus), see Lethrinus olivaceus
- rostratus Valenciennes, 1835 (Amphacanthus), see Siganus argenteus
- rostratus Waite & Hale, 1921 (Histiogamphelus), see Hypselognathus rostratus
- Rostrogobio Taranetz, 1937 (Cyprinidae)
- rostrum Bortone, 1974 (Diplectrum)
- ?rostrum Volta, 1796-09 (Uranoscopus)
- rotchii Clark, 1936 (Rabula), see Echidna nocturna
- ?rotengulus Valenciennes, 1844 (Leuciscus)
- rothrocki Bean, 1890 (Poroclinus)
- rothrocki (Stichaeus)
- rothschildi Richards, 1967 (Stemonosudis)
- rothschildi Isbrìcker, 1980 (Ancistrus)
- rothschildi Gìnther, 1901 (Barbus), see Barbus fritschii
- rothschildi Pellegrin, 1905 (Discognathus), see Garra makiensis
- rothschildi Regan, 1905 (Xenocara), see Ancistrus rothschildi
- ?rotondifrons Thiolli¨re, 1857 (Salarias)
- rottleri Bleeker, 1851 (Megalaspis), see Megalaspis cordyla
- rottleri Bloch, 1793 (Scomber), see Megalaspis cordyla
- Rotuma Springer, 1988 (Xenisthmidae)
- rotunda Chen, 1981 (Neomerinthe)
- rotunda Cuvier, 1798 (Mola), see Mola mola
- rotunda Tucker, 1954 (Rosaura), see Gigantura indica
- rotundata Risso, 1827 (Microstoma), see Microstoma microstoma
- rotundatus Ortega & Vari, 1986 (Triportheus)
- rotundatus Gilchrist, 1903 (Melanocetus), see Melanocetus johnsonii
- rotundatus Jardine, 1841 (Chalceus), see Triportheus rotundatus
- rotundatus Marion de Proc©, 1822 (Balistes), see Canthidermis maculatus
- rotundatus Michahelles, 1829 (Syngnathus), see Syngnathus typhle
- rotundatus Nakashima, 1941 (Chalcinus), see Triportheus rotundatus
- rotundicauda Costa, 1866 (Centrolophus), see Schedophilus ovalis
- rotundicauda Martens, 1868 (Homaloptera), see Oreonectes platycephalus
- rotundicauda Martens, 1868 (Octonema), see Oreonectes platycephalus
- rotundicaudata Wakiya & Mori, 1929 (Cobitis)
- rotundicaudum Martens, 1868 (Octonema), see Oreonectes platycephalus
- rotundiceps (Omobranchus)
- rotundiceps Macleay, 1881 (Petroscirtes)
- rotundiceps Risch, 1986 (Leptoglanis)
- rotundiceps Hilgendorf, 1905 (Gephyroglanis), see Leptoglanis rotundiceps
- rotundifrons (Clinus)
- rotundifrons Greenwood, 1961 (Dinotopterus)
- rotundifrons Jackson, 1959 (Bathyclarias), see Dinotopterus rotundifrons
- rotundifrons Penrith, 1969 (Gymnoclinus), see Clinus rotundifrons
- rotundifrons Smith, 1946 (Gynutoclinus), see Clinus rotundifrons
- rotundipinnis Parenti, 1984 (Orestias)
- rotundirostris Krasyukova (ex Schmidt), 1984 (Liparis), see Liparis latifrons
- rotundiventralis Takahashi, Yanagisawa & Nakaya, 1997 (Microdontochromis)
- rotundiventris (Wu & Chen, 1979) (Triplophysa)
- rotundiventris Wu & Chen, 1979 (Nemacheilus), see Triplophysa rotundiventris
- rotundiventris Wu & Chen, 1979 (Nemachilus), see Triplophysa rotundiventris
- rotundus Linnaeus, 1758 (Chaetodon), see Abudefduf septemfasciatus
- rouaneti Daget, 1962 (Labeo)
- ?roughleyi Whitley, 1930 (Plectorhinchus)
- Roughleyia Whitley, 1931 (Sparidae), see Sparus
- roulei Yang & Hwang, 1964 (Atrilinea)
- roulei de Buen, 1928 (Gobius)
- roulei Banarescu, 1971 (Onychostoma), see Varicorhinus lepturus
- roulei Bertin & Est¨ve, 1948 (Leuciscus leuciscus), see Leuciscus leuciscus
- roulei Bertin & Est¨ve, 1948 (Leuciscus leuciscus nat. ), see Leuciscus leuciscus
- roulei Regan & Trewavas, 1929 (Borostomias), see Borostomias antarcticus
- roulei Regan & Trewavas, 1932 (Edriolychnus), see Haplophryne mollis
- roulei Tchang, 1929 (Gyrinocheilus), see Semilabeo prochilus
- roulei Tchang, 1930 (Megagobio), see Megagobio ventralis
- roulei Vladykov, 1931 (Leuciscus leuciscus nat. ), see Leuciscus leuciscus
- roulei Wu, 1931 (Barbus), see Varicorhinus lepturus
- roulei Wu, 1931 (Barilius), see Atrilinea roulei
- roulei Wu, 1932 (Cynoglossus), see Cynoglossus semilaevis
- Rouleina Jordan, 1923 (Alepocephalidae)
- Rouleina Fowler, 1925 (Eurypharyngidae), see Eurypharynx
- ?rousseau Kaup, 1856 (Syngnathus)
- ?rousseauxii Castelnau, 1855 (Bagrus)
- roussellei Ladiges & Voelker, 1961 (Barbus)
- rouxi Whitehead, 1985 (Sardinella)
- rouxi Daget, 1961 (Barbus)
- rouxi Golani, 1996 (Parablennius)
- rouxi Snoeks & De Boeck, 1991 (Steatocranus)
- rouxi Stehmann, 1990 (Raja)
- ?rouxi (Blennius)
- ?rouxi Weber, 1911 (Gobius)
- rouxi Pellegrin, 1928 (Leptotilapia), see Steatocranus rouxi
- rouxi Poll, 1953 (Harengula), see Sardinella rouxi
- rov Montrouzier, 1857 (Orphie), see Tylosurus crocodilus
- rowleyi Hora & Misra, 1941 (Psilorhynchus homaloptera var. ), see Psilorhynchoides homaloptera
- Roxasella Fowler, 1943 (Hemerocoetinae), see Matsubaraea
- roxasi Herre, 1936 (Schismatogobius)
- royauxi Boulenger, 1902 (Microthrissa)
- royauxi Boulenger, 1902 (Euchilichthys)
- royerii Bowdich, 1825 (Smaris), see Centracanthus cirrus
- royeroi Ferraris, 1996 (Denticetopsis)
- roylii Boulenger, 1912 (Barbus)
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Markku Savela