All (in this database) Fish list (Scientific names): Part MK
A
AF
AM
AO
AS
AV
B
BD
BJ
BR
BT
C
CE
CI
CR
CW
D
DH
DR
E
EN
EV
F
FL
FS
G
GJ
GU
H
HG
HW
I
IO
J
K
KR
L
LB
LH
LT
M
MB
MF
MK
MV
N
NG
NJ
O
OH
OS
P
PE
PF
PN
PS
PY
Q
R
RH
RP
S
SE
SI
SO
SQ
SU
T
TH
TS
U
V
VI
W
X
Y
Z
- mkuziensis Fowler, 1934 (Fundulus), see Nothobranchius orthonotus
- mkuziensis Wildekamp, Romand & Scheel, 1986 (Nothobranchius), see Nothobranchius orthonotus
- mìlleri Bleeker, 1846 (Silurus), see Silurus muelleri
- mìlleri Gmelin, 1789 (Salmo), see Maurolicus muelleri
- mìlleri Gìnther, 1859 (Leporinus), see Leporinus muelleri
- mìlleri Gìnther, 1864 (Pimelodus), see Rhamdia muelleri
- mìlleri Gìnther, 1870 (Ginglymostoma), see Ginglymostoma ferrugineum
- mìlleri Klunzinger, 1880 (Pseudochromis), see Pseudochromis punctatus
- mìlleri Pietschmann, 1939 (Clarias), see Clarias gariepinus
- mìlleri Poey, 1860 (Pempheris), see Pempheris muelleri
- mìlleri Shen et al., 1986 (Salarias), see Istiblennius muelleri
- mìlleri Steindachner, 1876 (Leporinus), see Leporinus moralesi
- mìlleri Steindachner, 1876 (Paragoniates), see Paragoniates muelleri
- mìlleri Steindachner, 1878 (Leptobrama), see Leptobrama muelleri
- mìlleri Steindachner, 1879 (Sciaena), see Nibea soldado
- mìlleri Steindachner, 1881 (Rhamphosternarchus), see Sternarchorhamphus muelleri
- mìlleri Steindachner, 1881 (Sternarchus), see Sternarchorhamphus muelleri
- mloto Eccles & Trewavas, 1989 (Copadichromis)
- mloto Iles, 1960 (Haplochromis), see Copadichromis mloto
- Mnierpes Jordan & Evermann, 1896 (Labrisomidae)
- mniotiltus Ward & Fritzsche, 1987 ( Catostomusoccidentalis)
- ?moa Bleeker, 1850 (Anguilla)
- moadetta Cuvier (ex Ehrenberg), 1832 (Chorinemus), see Scomberoides lysan
- moadetta Ehrenberg, 1831 (Lichia), see Scomberoides lysan
- moae Kullander, 1980 (Apistogramma)
- moai Allen, 1970 (Antennarius), see Antennarius coccineus
- moaiab Montrouzier, 1857 (Diagramma), see Diagramma pictum
- ?moana Jordan & Seale, 1906 (Pseudupeneus)
- Moapa Hubbs & Miller, 1948 (Cyprinidae)
- moapae Williams & Wilde, 1981 ( Crenichthysbaileyi)
- ?moapae Williams, 1978 ( Rhinichthysosculus)
- ?moar Montrouzier, 1857 (Hemiramphus)
- mo-ara Temminck & Schlegel, 1842 (Serranus), see Epinephelus bruneus
- moara Katayama, 1984 (Epinephelus), see Epinephelus bruneus
- moara Temminck & Schlegel, 1842 (Serranus), see Epinephelus bruneus
- mo¯avan Montrouzier, 1857 (Upeneus), see Parupeneus barberinus
- Mobula Rafinesque, 1810 (Mobulinae)
- mobular Krefft & Stehmann, 1973 (Mobula)
- mobular Bonnaterre, 1788 (Raia), see Mobula mobular
- Mobulinae (Myliobatidae)
- ?mocasinus Rafinesque, 1814 (Sparus)
- mochara Osbeck, 1792 (Sparus), see Sparus scriptus
- Mochokidae (Siluriformes)
- Mochokiella Howes, 1980 (Mochokinae)
- Mochokinae (Mochokidae)
- Mochokus Joannis, 1835 (Mochokinae)
- mochon Cuvier, 1829 (Atherina), see Atherina boyeri
- mocoensis Trewavas, 1936 (Barbus)
- mocquardi Pellegrin, 1903 (Lamprologus)
- mocquardianus (Brachyalestes microstoma var. ), see Bryconaethiops microstoma
- mocquardianus Thominot, 1886 (Brachyalestes), see Bryconaethiops microstoma
- mocquardianus Thominot, 1886 (Hemiramphus), see Hemiramphus far
- modesta Regan, 1917 (Gonialosa)
- modesta Bleeker, 1865 (Botia)
- modesta Menon, 1987 (Homaloptera)
- modesta International Union for Conservation of Nature & Natural Resources (IUCN), 1990 (Gila)
- modesta Waite, 1899 (Lepidotrigla)
- ?modesta Castelnau, 1873 (Eleotris)
- modesta Ahl, 1923 (Gambusia), see Gambusia myersi
- modesta Boulenger, 1900 (Leptocypris), see Leptocypris modestus
- modesta Castelnau, 1872 (Atherinichthys), see Atherinason esox
- modesta Cohen, 1990 (Haloporphyrus), see Laemonema modestum
- modesta Fischer, 1885 (Pellonula), see Sardinella maderensis
- modesta Garman, 1881 (Cheonda), see Gila modesta
- modesta Kaup, 1860 (Muraena), see Gymnothorax richardsonii
- modesta Steindachner, 1898 (Notothenia), see Patagonotothen cornucola
- modesta Troschel, 1865 (Gambusia), see Poecilia sphenops
- modesta Vinciguerra, 1890 (Helgia), see Homaloptera modesta
- ?modestini Curtiss, 1938 (Mullus)
- modestoides Matsuura, 1984 (Thamnaconus)
- modestoides Barnard, 1927 (Cantherines), see Thamnaconus modestoides
- modestum Talwar & Jhingran, 1992 (Cyprinion)
- modestum Okamura, 1984 (Laemonema)
- ?modestum Tschudi, 1846 (Haemulon)
- modestum Gìnther, 1872 (Chiloscyllium), see Brachaelurus waddi
- modestum Ogilby, 1907 (Brachaelurus), see Brachaelurus waddi
- modestum Ogilby, 1908 (Cirriscyllium), see Brachaelurus waddi
- modestus Vari, 1992 (Cyphocharax)
- modestus Boulenger, 1900 (Leptocypris)
- modestus Talwar & Jhingran, 1991 (Barilius)
- modestus Wildekamp et al., 1986 (Hypsopanchax)
- modestus Costa, 1991 (Rivulus)
- modestus Temminck & Schlegel, 1844 (Chaetodon)
- modestus Colombe & Allgayer, 1985 (Neolamprologus)
- modestus Johnson, 1974 (Pseudotropheus)
- modestus Eccles & Trewavas, 1989 (Stigmatochromis)
- modestus (Gobius)
- modestus Yoshino & Yamamoto, 1984 (Paragobiodon)
- modestus Cantor, 1842 (Periophthalmus)
- modestus (Pomacentrus)
- modestus Snyder, 1911 (Ocynectes)
- modestus Burgess, 1989 (Pimelodella)
- modestus Matsuura, 1984 (Thamnaconus)
- modestus Roberts, 1989 (Chonerhinos)
- ?modestus Kner, 1867 (Puntius)
- ?modestus Bleeker, 1875 (Asterropteryx)
- modestus (Barbus), see Puntius modestus
- modestus Ahl, 1928 (Platypanchax), see Hypsopanchax modestus
- modestus Bleeker, 1847 (Halichoeres), see Halichoeres chloropterus
- modestus Bleeker, 1847 (Julis), see Halichoeres chloropterus
- modestus Bleeker, 1851 (Arothron), see Chonerhinos modestus
- modestus Bleeker, 1851 (Tetraodon), see Chonerhinos modestus
- modestus Bleeker, 1854 (Apogon), see Apogon novaeguineae
- modestus Bleeker, 1863 (Lutjanus), see Lutjanus endecacanthus
- modestus Boulenger, 1898 (Lamprologus), see Neolamprologus modestus
- modestus Boulenger, 1899 (Petersius), see Rhabdalestes hilgendorfi
- modestus Castelnau, 1872 (Heteroscarus), see Odax acroptilus
- modestus Castelnau, 1875 (Pseudoscarus), see Odax acroptilus
- modestus Day, 1870 (Chatoessus), see Gonialosa modesta
- modestus Day, 1870 (Chato«ssus), see Gonialosa modesta
- modestus Day, 1870 (Semiplotus), see Cyprinion modestum
- modestus Day, 1872 (Pachystomus), see Barilius modestus
- modestus Fern¡ndez-Y©pez (ex Amaral Campos), 1948 (Curimatorbis), see Cyphocharax modestus
- modestus Franz, 1910 (Haloporphyrus), see Laemonema modestum
- modestus Garrett, 1864 (Crenilabrus), see Bodianus bilunulatus
- modestus Gilchrist & Thompson, 1909 (Epinephelus), see Epinephelus chabaudi
- modestus Girard, 1854 (Julis), see Oxyjulis californica
- modestus Gìnther, 1860 (Pimelodus), see Pimelodella modestus
- modestus Gìnther, 1870 (Syngnathus), see Vanacampus poecilolaemus
- modestus Gìnther, 1877 (Monacanthus), see Thamnaconus modestus
- modestus Gìnther, 1880 (Monocanthus), see Thamnaconus modestus
- modestus Gìnther, 1894 (Hemichromis), see Stigmatochromis modestus
- modestus Heckel, 1840 (Heros), see Heros severus
- modestus Jordan & Metz, 1913 (Pseudaspius), see Phoxinus lagowskii
- modestus Pappenheim & Boulenger, 1914 (Haplochilus), see Hypsopanchax modestus
- modestus Paugy, 1984 (Hemigrammopetersius), see Rhabdalestes hilgendorfi
- modestus Paugy, 1984 (Micralestes), see Rhabdalestes hilgendorfi
- modestus Philippi, 1896 (Salarias), see Scartichthys viridis
- modestus Regan, 1908 (Gobiopterus), see Paragobiodon modestus
- modestus Sauvage, 1879 (Syngnathus), see Vanacampus poecilolaemus
- modestus Schlegel & Mìller, 1839 (Glyphisodon), see Chrysiptera glauca
- modestus Schmidt & Lindberg, 1930 (Paracanthochaetodon), see Chaetodon modestus
- Modicus (Gobiesocinae)
- modificatus Gilbert & Hubbs, 1916 (Squalogadus)
- Modigliania Perugia, 1893 (Nemacheilinae), see Nemacheilus
- ?modiglianii Perugia, 1893 (Homaloptera)
- ?modiglianii Perugia, 1893 (Gobius)
- modjensis Boulenger, 1904 (Chiloglanis)
- moebii Boulenger, 1911 (Etropius), see Schilbe moebiusii
- moebii Boulenger, 1911 (Eutropius), see Schilbe moebiusii
- moebiusii De Vos, 1986 (Schilbe)
- moebiusii Pfeffer, 1896 (Eutropius), see Schilbe moebiusii
- moeiensis Kottelat, 1990 (Schistura)
- Moema Costa, 1989 (Rivulinae)
- Moenkhausia Eigenmann, 1903 (Tetragonopterinae)
- moenkhausii Ortega & Vari, 1986 (Knodus)
- moenkhausii Eigenmann & Kennedy, 1903 (Poecilurichthys), see Knodus moenkhausii
- moense ( Fundulopanchaxmirabilis)
- moense Huber, 1978 (Aphyosemion), see Fundulopanchax mirabilis moense
- moense Kottelat, 1976 (Paraphyosemion mirabile), see Fundulopanchax mirabilis moense
- moense Radda, 1970 (Aphyosemion mirabile), see Fundulopanchax mirabilis moense
- moensi Bleeker, 1860 (Scarus), see Scarus javanicus
- moensii Bleeker, 1855 (Lethrinus), see Lethrinus semicinctus
- moeone Phillipps, 1927 (Polyprion)
- moerens Gronow, 1854 (Gonopterus), see Zanclus canescens
- moeruensis Gour¨ne & Teugels, 1990 (Microthrissa)
- moeruensis L©vªque & Daget, 1984 (Neobola)
- moeruensis Wildekamp et al., 1986 (Aplocheilichthys)
- moeruensis van Oijen et al., 1991 (Haplochromis)
- moeruensis (Aethiomastacembelus)
- moeruensis Boulenger, 1899 (Paratilapia), see Haplochromis moeruensis
- moeruensis Boulenger, 1914 (Haplochilus), see Aplocheilichthys moeruensis
- moeruensis Boulenger, 1914 (Mastacembelus), see Aethiomastacembelus moeruensis
- moeruensis Boulenger, 1915 (Engraulicypris), see Neobola moeruensis
- moeruensis Boulenger, 1915 (Gnathonemus), see Marcusenius macrolepidotus
- moeruensis Gosse, 1986 (Afromastacembelus), see Aethiomastacembelus moeruensis
- moeruensis Pellegrin, 1922 (Barbus), see Barbus stappersii
- moeruensis Poll, 1948 (Poecilothrissa), see Microthrissa moeruensis
- moeschii Burgess, 1989 (Leiocassis)
- moeschii Boulenger, 1890 (Liocassis), see Leiocassis moeschii
- moffatii Castelnau, 1861 (Chromis), see Pseudocrenilabrus philander
- moffatii Castelnau, 1861 (Chromys), see Pseudocrenilabrus philander
- moffitti Randall & Myers, 1993 (Parupeneus)
- mogiguacuensis Travassos, 1952 (Apareiodon)
- mogkii (Engyprosopon)
- mogkii Bleeker, 1854 (Rhombus), see Engyprosopon mogkii
- Mogurnda Gill, 1863 (Eleotridae)
- mogurnda Gill, 1863 (Mogurnda)
- mogurnda Richardson, 1844 (Eleotris), see Mogurnda mogurnda
- Mohanga Boulenger, 1911 (Aplocheilichthyinae), see Lamprichthys
- Moharra Poey, 1875 (Gerreidae), see Gerres
- mohasicus Pappenheim & Boulenger, 1914 (Barbus)
- mohnikei (Hippocampus)
- mohoity (Misgurnus)
- mohoity Dybowski, 1869 (Cobitis fossilis var. ), see Misgurnus mohoity
- ?mohrii Kro{/yer, 1837 (Clinus)
- moiavan Montrouzier, 1857 (Upeneus), see Parupeneus barberinus
- moisae Gery, Planquette, & Le Bail, 1995 (Moenkhausia)
- mojarra Meek, 1904 (Cichlasoma), see Parapetenia trimaculata
- mokarran Gilbert, 1967 (Sphyrna)
- mokarran Rìppell, 1837 (Zygaena), see Sphyrna mokarran
- mokhella Cuvier (ex Ehrenberg), 1831 (Holacanthus), see Pomacanthus maculosus
- mokotoensis Poll, 1939 (Labeo)
- mokschegor Ostroumov, 1937 (Coregonus pidshian), see Coregonus lavaretus
- Mola Koelreuter, 1770 (Molidae)
- mola Eigenmann & Kennedy, 1903 (Metynnis)
- mola Bleeker, 1859 (Amblypharyngodon)
- mola Balon & Stewart, 1983 (Chetia)
- mola Axelrod, 1993 (Mylochromis)
- mola Linck, 1790 (Mola)
- mola (Tetraodon)
- Mola Blyth, 1860 (Cyprininae), see Amblypharyngodon
- Mola Heckel, 1843 (Cyprininae), see Amblypharyngodon
- mola Bloch & Schneider, 1801 (Orthragoriscus), see Mola mola
- mola Cuvier, 1816 (Orthagoriscus), see Mola mola
- mola Cuvier, 1829 (Labrus), see Halichoeres nigrescens
- mola Eccles & Trewavas, 1989 (Maravichromis), see Mylochromis mola
- mola Forssk¥l, 1775 (Ostracion), see Tetraodon mola
- mola Hamilton, 1822 (Cyprinus), see Amblypharyngodon mola
- mola Heckel, 1843 (Mola), see Amblypharyngodon mola
- mola Linnaeus, 1758 (Tetraodon), see Mola mola
- mola Moreau, 1881 (Lota), see Molva molva
- mola Pallas, 1770 (Diodon), see Mola mola
- mola Rafinesque, 1810 (Orthragus), see Mola mola
- mola Trewavas, 1935 (Haplochromis), see Mylochromis mola
- Molacanthus Swainson, 1839 (Molidae), see Mola
- Molarii Richardson, 1848 (Muraenidae), see Echidna
- moldonadoi Burgess, 1989 (Hatcheria), see Bullockia maldonadoi
- ?molendinaris Bennett, 1833 (Muraena)
- moles Selys-Longchamps, 1842 (Cyprinus), see Carassius carassius
- moles Valenciennes (ex Agassiz), 1842 (Cyprinus), see Carassius carassius
- ?molestum Girard, 1858 (Gobiosoma)
- molestus Paulin, Stewart, Roberts & McMillan, 1989 (Stemonosudis)
- molestus Marshall, 1955 (Macroparalepis), see Stemonosudis molestus
- molesworthi Chaudhuri, 1913 (Oreinus), see Schizothorax richardsonii
- molesworthi Tsao, 1964 (Schizothorax), see Schizothorax richardsonii
- molesworthii Shrestha, 1978 (Oreinus), see Schizothorax richardsonii
- ?molicorporus Tchang, Yueh & Hwang, 1964 (Gymnocypris)
- Molidae (Tetraodontiformes)
- molinae (Cauque)
- molinae Miles, 1943 (Cetopsorhamdia)
- molinae Philippi, 1887 (Galeus), see Galeorhinus galeus
- molinai Stein, Mel©ndez C. & Kong U., 1991 (Paraliparis)
- molitorella (Cirrhinus)
- molitorella Valenciennes, 1844 (Leuciscus), see Cirrhinus molitorella
- molitorella Wu et al., 1977 (Cirrhina), see Cirrhinus molitorella
- molitrix Bleeker, 1859 (Hypophthalmichthys)
- molitrix Valenciennes, 1844 (Leuciscus), see Hypophthalmichthys molitrix
- molle Toyoshima, 1984 (Bothrocara)
- molleri (Etmopterus)
- molleri Whitley, 1930 (Macrorhamphosus), see Macroramphosus scolopax
- molleri Whitley, 1939 (Acanthidium), see Etmopterus molleri
- mollespiculum Allen & Feinberg, 1998 (Neosilurus)
- ?molliceps Valenciennes, 1840 (Arius)
- Mollienesia Lesueur, 1821 (Poeciliinae), see Poecilia
- mollinasum Isbrìcker, 1980 (Chaetostoma)
- mollinasus Pearson, 1937 (Chaetostomus), see Chaetostoma mollinasum
- mollis Gìnther, 1878 (Bathysaurus)
- mollis ( Gadusasellus)
- mollis Roule, 1916 (Echinomacrurus)
- mollis Regan, 1912 (Haplophryne)
- mollis Smith & Radcliffe, 1912 (Coelophrys)
- mollis T¥ning, 1928 (Diaphus)
- mollis Axelrod, 1993 (Mylochromis)
- mollis Richardson, 1848 (Sthenopus)
- mollis Gilbert & Burke, 1912 (Careproctus)
- mollis Lloris & Rucabado, 1991 (Heteronarce)
- ?mollis Hermann, 1804 (Silurus)
- mollis Abe, 1959 (Beryx), see Beryx splendens
- mollis Bean, 1890 (Bothrocara), see Bothrocara molle
- mollis Bigelow & Schroeder, 1950 (Raja), see Malacoraja spinacidermis
- mollis Brauer, 1902 (Aceratias), see Haplophryne mollis
- mollis Eccles & Trewavas, 1989 (Maravichromis), see Mylochromis mollis
- mollis Fowler, 1944 (Leptocephalus), see Myrophis punctatus
- mollis Goode & Bean, 1886 (Aphyonus), see Aphyonus gelatinosus
- mollis Kaup, 1858 (Trichopleura), see Sthenopus mollis
- mollis Koehler, 1896 (Bathytroctes), see Rouleina attrita
- mollis Larraáaga, 1923 (Perca), see Macrodon ancylodon
- mollis Lloyd, 1907 (Narcine), see Heteronarce mollis
- mollis Mitchill, 1814 (Pleuronectes), see Trinectes maculatus
- mollis Roule, 1935 (Caudania), see Rouleina attrita
- mollis Stehmann, 1970 (Malacoraja), see Malacoraja spinacidermis
- mollis Trewavas, 1935 (Haplochromis), see Mylochromis mollis
- mollisoni Dawson, 1984 (Mitotichthys)
- mollisoni Scott, 1955 (Syngnathus), see Mitotichthys mollisoni
- mollispinis Miller & Hubbs, 1960 (Lepidomeda)
- Mollisquama Dolganov, 1984 (Dalatiinae)
- mollosus (Gadus)
- moloanus (Amoya)
- moloanus Herre, 1927 (Aparrius), see Amoya moloanus
- moloanus Prince Akihito, 1984 (Acentrogobius), see Amoya moloanus
- molobrion Siebert, 1991 (Acanthopsoides)
- Molochophrys Whitley, 1931 (Heterodontidae), see Heterodontus
- molokaiensis Paulin, 1989 (Gadella)
- molossus (Roestes)
- molossus Kner, 1858 (Cynopotamus), see Roestes molossus
- molossus Kner, 1860 (Lycodon), see Roestes molossus
- moltonii Torchio, 1961 (Arnoglossus), see Arnoglossus thori
- moltrechti Regan, 1908 (Pararasbora)
- molucca Cuvier, 1829 (Pempheris), see Pempheris mangula
- moluccanus Bleeker, 1861 (Pseudodax)
- moluccanus Valenciennes, 1840 (Odax), see Pseudodax moluccanus
- moluccense Miller, 1974 (Satyrichthys)
- moluccense Bleeker, 1851 (Peristedion), see Satyrichthys moluccense
- moluccensis Randall & Golani, 1995 (Gymnothorax)
- moluccensis Valenciennes, 1832 (Apogon)
- moluccensis Hureau, 1973 (Upeneus)
- moluccensis Bleeker, 1853 (Pomacentrus)
- moluccensis Bleeker, 1860 (Centrophorus)
- ?moluccensis Bleeker, 1853 (Dalophis)
- moluccensis Bleeker, 1852 (Hippocampus), see Hippocampus kuda
- moluccensis Bleeker, 1853 (Harengula), see Herklotsichthys quadrimaculatus
- moluccensis Bleeker, 1855 (Antennarius), see Antennarius commersonii
- moluccensis Bleeker, 1855 (Upeneoides), see Upeneus moluccensis
- moluccensis Bleeker, 1856 (Scomber), see Rastrelliger kanagurta
- moluccensis Bleeker, 1861 (Callyodon), see Calotomus spinidens
- moluccensis Bleeker, 1864 (Pisoodonophis), see Pisodonophis boro
- moluccensis Bleeker, 1865 (Priodonophis), see Gymnothorax moluccensis
- moluccensis Gronow, 1854 (Thynnus), see Scomberoides lysan
- moluccensis Gìnther, 1862 (Pseudodax), see Pseudodax moluccanus
- Molva Lesueur, 1819 (Lotidae)
- molva Lesueur, 1819 (Molva)
- molva Costa, 1844 (Lota), see Molva molva
- molva Jenyns, 1835 (Lota), see Molva molva
- molva Linnaeus, 1758 (Gadus), see Molva molva
- Molvella Kaup, 1858 (Lotidae), see Ciliata
- molybdinus du Plessis, 1963 (Labeo)
- mombasae Eschmeyer, 1986 (Pterois)
- mombasae Smith, 1957 (Pteropterus), see Pterois mombasae
- Momonatira Paulin, 1986 (Moridae)
- momsa Herre, 1927 (Hynnis), see Alectis indicus
- monaca Gìnther (ex Cocco), 1870 (Muraena), see Gymnothorax unicolor
- monacantha Cope, 1867 (Corvina), see Plagioscion monacanthus
- Monacanthidae (Tetraodontiformes)
- Monacanthus Oken (ex Cuvier), 1817 (Monacanthidae)
- monacanthus Smith, 1935 (Synchiropus)
- monacanthus La Marca, 1997 (Plagioscion)
- monacanthus Poss & Eschmeyer, 1978 (Cocotropus)
- ?monacanthus Regan, 1908 (Asterropteryx)
- monacanthus Gilchrist, 1906 (Tetraroge), see Cocotropus monacanthus
- monacanthus Mìller & Troschel, 1848 (Plectropoma), see Alphestes afer
- monacha (Cyprinella)
- monacha Miller, 1960 (Poeciliopsis)
- monacha Lee et al., 1980 (Hybopsis), see Cyprinella monacha
- monachus Cope, 1868 (Ceratichthys), see Cyprinella monacha
- Monacoa Whitley, 1943 (Opisthoproctidae), see Opisthoproctus
- monae Gill, 1883 (Stephanoberyx)
- monardi Pellegrin, 1936 (Hemigrammocharax)
- monchadskii Krasyukova & Gusev, 1987 (Gyrinocheilus), see Gyrinocheilus aymonieri
- moncktoni (Eleotris)
- moncktoni Regan, 1908 (Caulichthys), see Eleotris moncktoni
- mondabu Colombe & Allgayer, 1985 (Neolamprologus)
- mondabu Boulenger, 1906 (Lamprologus), see Neolamprologus mondabu
- mondolfi Burgess, 1989 (Trichomycterus)
- mondolfi Schultz, 1945 (Pygidium), see Trichomycterus mondolfi
- monensis Shaw, 1804 (Squalus), see Lamna nasus
- ?mong Richardson, 1846 (Pimelodus)
- mongallensis Werner, 1906 (Slatinia), see Andersonia leptura
- monge Risso, 1827 (Notidanus), see Hexanchus griseus
- monge Risso, 1846 (Notidanus), see Hexanchus griseus
- mongo Trewavas, Green & Corbet, 1972 (Stomatepia)
- mongolicus Bleeker, 1859 (Chanodichthys)
- mongolicus Howes, 1984 (Genghis)
- mongolicus Basilewsky (ex Pallas), 1855 (Leptocephalus), see Chanodichthys mongolicus
- mongolicus Basilewsky, 1855 (Culter), see Chanodichthys mongolicus
- mongolicus Basilewsky, 1855 (Leptocephalus), see Chanodichthys mongolicus
- mongolicus Berg, 1909 (Erythroculter), see Chanodichthys mongolicus
- mongolicus Berg, 1949 (Erythroculter), see Chanodichthys mongolicus
- mongolicus Chen, 1989 (Erythroculter), see Chanodichthys mongolicus
- mongolicus Kessler, 1876 (Squalius), see Genghis mongolicus
- mongolicus Oshima, 1926 (Leuciscus), see Genghis mongolicus
- mongolicus Warpachowski, 1900 (Coregonus), see Coregonus cylindraceus
- ?mongonuiensis Regan, 1914 (Arnoglossus)
- Monhoplichthys (Hoplichthyidae)
- Moniana Girard, 1856 (Cyprinidae), see Cyprinella
- monikae Berkenkamp & Etzel, 1995 (Rivulus)
- moniliger Bleeker, 1865 (Conger), see Muraenesox bagio
- monilis Hora, 1921 (Nemacheilus)
- monilis Hora, 1921 (Nemachilus), see Nemacheilus monilis
- monilis Menon, 1987 (Noemacheilus), see Nemacheilus monilis
- Monishia Smith, 1959 (Gobiidae), see Coryogalops
- monitor Ortega & Vari, 1986 (Amblydoras)
- monitor Cope, 1871 (Zathorax), see Amblydoras monitor
- monitor Cope, 1872 (Zathorax), see Amblydoras monitor
- monkei Keilhack, 1910 (Auchenoglanis)
- monkei Keilhack, 1910 (Clarias), see Clarias camerunensis
- Monocentridae (Beryciformes)
- Monocentris Bloch & Schneider, 1801 (Monocentridae)
- ?monocera McClelland, 1839 (Cobitis)
- monoceros Cuvier, 1831 (Heniochus)
- monoceros (Aluterus)
- Monoceros Bloch & Schneider, 1801 (Nasinae), see Naso
- monoceros Berry & Vogele, 1961 (Alutera), see Aluterus monoceros
- monoceros Linnaeus, 1758 (Balistes), see Aluterus monoceros
- monoceros Oken (ex Cuvier), 1817 (Alutera), see Aluterus monoceros
- Monochir Cuvier, 1829 (Soleidae), see Monochirus
- monochir Bonaparte, 1833 (Solea), see Monochirus hispidus
- Monochirus Rafinesque, 1814 (Soleidae)
- monochirus (Pleuronectes)
- monochrous Hatooka, 1984 (Gymnothorax)
- monochrous Bleeker, 1856 (Apogon)
- monochrous Bleeker, 1856 (Muraena), see Gymnothorax monochrous
- monochrus Bleeker, 1869 (Alticus)
- Monocirrhus Heckel, 1840 (Polycentrinae)
- monocirrhus Richardson, 1846 (Exocoetus)
- monocirrhus Richardson, 1846 (Exocaetus), see Exocoetus monocirrhus
- monoclonus Regan & Trewavas, 1930 (Eustomias), see Eustomias dendriticus
- monoculus Springer, 1988 (Ecsenius)
- monoculus Kullander, 1986 (Cichla)
- monoculus Spix & Agassiz, 1831 (Cychla), see Cichla monoculus
- monodactyla Bloch & Schneider, 1801 (Scorpaena), see Minous monodactylus
- Monodactylidae (Perciformes)
- Monodactylus Lacep¨de (ex Commerson), 1801 (Monodactylidae)
- monodactylus (Acantholatris)
- monodactylus Cuvier, 1829 (Minous)
- monodactylus Cantor, 1849 (Corythobatus), see Minous monodactylus
- monodactylus Carmichael, 1819 (Chaetodon), see Acantholatris monodactylus
- monodactylus Regan & Trewavas, 1930 (Eustomias), see Eustomias filifer
- monodactylus Regan & Trewavas, 1930 (Photonectes), see Photonectes margarita
- monodi McCosker et al., 1989 (Apterichtus)
- monodi Vari, 1979 (Ichthyborus)
- monodi Poll & Cadenat, 1954 (Erythrocles)
- monodi Chabanaud, 1949 (Cynoglossus)
- monodi Chabanaud, 1926 (Mugil), see Mugil capurrii
- monodi Daget, 1954 (Tilapia), see Oreochromis aureus
- monodi Fowler, 1934 (Diaphus), see Diaphus lucidus
- monodi Pellegrin, 1927 (Gavialocharax), see Ichthyborus monodi
- monodi Roux, 1966 (Caecula), see Apterichtus monodi
- monodi Roux, 1966 (Sphagebranchus), see Apterichtus monodi
- Monodichthys Chabanaud, 1925 (Soleidae), see Heteromycteris
- monodon Cope, 1894 (Cheirodon), see Cheirodon interruptus
- monodon Cope, 1894 (Chirodon), see Cheirodon interruptus
- monofasciatus Thiolli¨re, 1857 (Amphiprion), see Amphiprion melanopus
- monofilispinnus Li, 1966 (Callionymus), see Callionymus meridionalis
- Monognathidae (Saccopharyngiformes)
- Monognathus Bertin, 1936 (Monognathidae)
- monogramma Ploeg, 1991 (Crenicichla)
- monogramma Snoeks & De Boeck, 1991 (Teleogramma)
- monogramma Russell, 1990 (Scolopsis)
- monogramma Cuvier (ex Kuhl & van Hasselt), 1830 (Scolopsides), see Scolopsis monogramma
- monogramma Gìnther, 1880 (Apogon), see Apogon fasciatus
- monogramma Kullander, 1988 (Teleocichla), see Crenicichla monogramma
- monogramma Pellegrin, 1927 (Leptolamprologus), see Teleogramma monogramma
- monogrammus Pellegrin, 1927 (Leptolamprologus), see Teleogramma monogramma
- Monolene Goode, 1880 (Bothinae)
- ?monoloba Mai, 1978 (Homaloptera)
- Monomeropus Garman, 1899 (Neobythitinae), see Monomitopus
- Monomitopus Alcock, 1890 (Neobythitinae)
- Monomitra Goode, 1883 (Liparinae), see Paraliparis
- mononema Kottelat, Whitten, Kartikasari & Wirjoatmodjo, 1993 (Kryptopterus)
- mononema Gibbs & Morrow, 1973 (Borostomias)
- mononema Bleeker, 1847 (Silurus), see Kryptopterus mononema
- mononema Regan & Trewavas, 1929 (Diplolychnus), see Borostomias mononema
- monopa Gìnther, 1862 (Rhombosolea), see Rhombosolea tapirina
- monopelte Fowler, 1914 (Sturisoma)
- Monopenchelys Bæhlke & McCosker, 1982 (Muraenidae)
- monophthalma Whitley, 1940 (Cremnotekla), see Paraclinus monophthalmus
- monophthalmus Allen & Robertson, 1994 (Paraclinus)
- monophthalmus Gìnther, 1861 (Auchenopterus), see Paraclinus monophthalmus
- monophthalmus Gìnther, 1861 (Cremnobates), see Paraclinus monophthalmus
- monophthalmus Gìnther, 1862 (Cremnobates), see Paraclinus monophthalmus
- monophthalmus Kner, 1867 (Holacanthus), see Centropyge flavissimus
- monoporus Andriashev & Neelov, 1979 (Paraliparis)
- Monoprion Poey, 1860 (Apogoninae), see Apogon
- monoptera Randall & Hoese, 1985 (Ptereleotris)
- Monopterhinus Blainville, 1816 (Hexanchidae), see Hexanchus
- monopteroides Kottelat & Lim, 1994 (Bihunichthys)
- Monopterus Lacep¨de, 1800 (Synbranchidae)
- monopterygium Paxton et al., 1989 (Hypnos)
- monopterygius (Callionymus)
- monopterygius Paulin, Stewart, Roberts & McMillan, 1989 (Hemerocoetes)
- monopterygius Paulin, Stewart, Roberts & McMillan, 1989 (Genyagnus)
- monopterygius (Uranoscopus)
- monopterygius Robins & Ray, 1986 (Aspidophoroides)
- monopterygius Gill, 1861 (Pleurogrammus)
- monopterygius Bloch, 1786 (Cottus), see Aspidophoroides monopterygius
- monopterygius Pallas, 1810 (Labrax), see Pleurogrammus monopterygius
- monopterygius Schneider, 1801 (Callionymus), see Hemerocoetes monopterygius
- monopterygius Schneider, 1801 (Uranoscopus), see Genyagnus monopterygius
- monopterygius Shaw, 1795 (Lophius), see Hypnos monopterygium
- monopterygius Swainson, 1839 (Canthirhynchus), see Aspidophoroides monopterygius
- monopus Menon, 1977 (Cynoglossus)
- monopus Bleeker, 1849 (Plagusia), see Cynoglossus monopus
- monopus Gìnther, 1862 (Rhombosolea), see Rhombosolea tapirina
- Monosira Poey, 1881 (Sciaenidae), see Larimus
- monospilus Randall, 1994 (Coryogalops)
- Monostichodus Vaillant in Pellegrin, 1900 (Distichodinae), see Hemistichodus
- monostichus Heckel, 1851 (Salmo), see Salvelinus umbla
- monostigma (Gymnothorax)
- monostigma Ogilby, 1910 (Choerodon)
- monostigma Akazaki, 1984 (Lutjanus)
- monostigma Smith, 1958 (Gunnellichthys)
- ?monostigma Fourmanoir, 1971 (Eviota)
- monostigma Cuvier, 1828 (Mesoprion), see Lutjanus monostigma
- monostigma Regan, 1909 (Muraena), see Gymnothorax monostigma
- Monotaxinae (Lethrinidae)
- Monotaxis Bennett, 1830 (Monotaxinae)
- Monothrix Ogilby, 1897 (Brosmophycinae)
- Monotocheirodon Eigenmann & Pearson in Pearson, 1924 (Cheirodontinae)
- Monotretus Troschel (ex Bibron), 1856 (Tetraodontidae)
- monroei Nichols & Breder, 1928 (Cypselurus), see Cheilopogon cyanopterus
- monroviae Arnoult & Daget, 1965 ( Epiplatysdageti)
- monroviae Parenti, 1981 (Fundulopanchax)
- monroviae Steindachner, 1876 (Acanthurus)
- monroviae (Callopanchax), see Fundulopanchax monroviae
- monroviae Daget & Arnoult, 1964 (Lycocyprinus dageti), see Epiplatys dageti monroviae
- monroviae Roloff & Ladiges, 1972 (Roloffia), see Fundulopanchax monroviae
- monroviae Wildekamp et al., 1986 (Aphyosemion), see Fundulopanchax monroviae
- mo«nse Radda, 1970 (Aphyosemion mirabile), see Fundulopanchax mirabilis moense
- ?monserrati Roxas & Ablan, 1940 (Nudagobioides)
- monshiensis Yang & Hwang, 1964 (Danio), see Barilius barila
- monstrosa Anderson, 1982 (Lycenchelys)
- monstrosa Linnaeus, 1758 (Chimaera)
- ?monstrosa Walbaum, 1792 (Raja)
- monstrosa Gronow, 1854 (Scorpaena), see Synanceia horrida
- monstrosa Nichols, 1925 (Pseudorasbora), see Pseudorasbora parva
- monstrosus (Huber, 1995) (Megalebias)
- monstrosus Huber, 1995 (Cynolebias), see Megalebias monstrosus
- monstrosus Kuznetsov, 1888 (Benthophilus), see Benthophilus stellatus
- monstrosus Walecki, 1863 (Cyprinus carpio var. ), see Cyprinus carpio
- monstrum (Barbus)
- monstrum Klunzinger, 1871 (Dicerobatis), see Mobula eregoodootenkee
- montacuti Turton, 1807 (Cyclopterus), see Liparis montagui
- montagui Chernova, 1991 (Liparis)
- montagui Fowler, 1910 (Raja)
- montagui Donovan, 1804 (Cyclopterus), see Liparis montagui
- montagui Fleming, 1828 (Blennius), see Coryphoblennius galerita
- montalbani Eschmeyer, 1997 (Mugilogobius)
- montalbani Herre, 1927 (Apocryptodon), see Apocryptodon madurensis
- montalbani Herre, 1936 (Vaimosa), see Mugilogobius montalbani
- montalbani Whitley, 1931 (Squalus), see Squalus mitsukurii
- Montalbania Fowler, 1934 (Dussumieriinae), see Dussumieria
- montana Brembach, 1982 (Dermogenys)
- montana Herre, 1945 (Homaloptera)
- montana (Schistura)
- montana Rosen & Bailey, 1963 (Poecilia)
- montana Allen [W. R.], 1942 (Pimelodella)
- montana Eigenmann, 1913 (Rhamdella)
- montana Hora, 1938 (Clupisoma)
- montana Hora, 1950 (Erethistoides)
- montana Menon, 1987 (Noemacheilus), see Schistura montana
- montana Regan, 1904 (Xenocara), see Ancistrus montanus
- montana Vladykov, 1925 (Cobitis), see Sabanejewia balcanica
- montana Walker, 1812 (Salmo), see Salmo trutta
- montanoi Sauvage, 1881 (Puntius)
- ?montanoi Sauvage, 1880 (Salarias)
- montanoi (Barbus), see Puntius montanoi
- montanus (Nemacheilus)
- montanus Burgess, 1989 (Mystus)
- montanus Isbrìcker, 1980 (Ancistrus)
- ?montanus Zugmayer, 1909 (Schizothorax)
- ?montanus Blanchard, 1896 ( Phoxinuslaevis)
- montanus Brembach, 1982 (Dermogenys), see Dermogenys montana
- montanus Cope, 1872 (Clinostomus), see Richardsonius balteatus
- montanus Gìnther, 1889 (Tylognathus), see Labeo cylindricus
- montanus Hora, 1950 (Erethistoides), see Erethistoides montana
- montanus Hubbs & Black, 1941 (Poecilichthys whipplii), see Etheostoma whipplii
- montanus Jerdon, 1849 (Bagrus), see Mystus montanus
- montanus Jerdon, 1849 (Cobitis), see Mystus montanus
- montanus Meek, 1885 (Hybopsis), see Notropis dorsalis
- montanus Menon, 1987 (Nemacheilus), see Schistura montana
- montanus Milner, 1874 (Thymallus), see Thymallus arcticus
- montanus Og©rien, 1863 (Phyxynus), see Phoxinus phoxinus
- montebelloi Isbrìcker, 1980 (Ixinandria)
- montebelloi Fowler, 1940 (Canthopomus), see Ixinandria montebelloi
- monteiri Gosse, 1984 (Marcusenius)
- monteiri Boulenger, 1899 (Tilapia), see Haplochromis fasciatus
- monteiri Gìnther, 1873 (Mormyrus), see Marcusenius monteiri
- monteiri O'Shaughnessy, 1875 (Eleotris), see Eleotris vittata
- ?montemaris de Buen, 1961 (Hippoglossina)
- montenigrina Karaman, 1933 (Trutta), see Salmothymus obtusirostris
- montenigrinus Karaman, 1972 (Phoxinellus stimphalicus), see Pseudophoxinus minutus
- montenigrinus Kottelat, 1997 (Leuciscus), see Leuciscus souffia
- montenigrinus Vukovic, 1963 (Leuciscus souffia), see Leuciscus souffia
- Montereya Hubbs, 1926 (Cottidae), see Clinocottus
- montereyensis Eschmeyer & Herald, 1983 (Gibbonsia)
- ?montereyensis Gilbert, 1915 (Raja)
- montevidensis Berg [C.], 1893 (Thalassophryne)
- montevidensis Berg, 1895 (Thalassothia), see Thalassophryne montevidensis
- montevideo (Clupea)
- montezuma Heckel, 1840 (Heros), see Theraps sieboldii
- montezumae Jordan & Snyder, 1899 (Xiphophorus)
- montgui Kaup, 1856 (Cepolophis), see Gymnelus viridis
- monticola Allen, 1980 (Melanotaenia)
- monticola Doi, 1997 (Gastromyzon)
- monticola Barbour & Contreras, 1968 (Algansea)
- monticola Wu et al., 1977 (Acrossocheilus)
- monticola Fink, 1971 ( Gambusiapuncticulata)
- monticola Staeck & Schindler, 1997 (Rivulus)
- monticola Lee et al., 1980 (Agonostomus)
- monticola Bancroft, 1834 (Mugil), see Agonostomus monticola
- monticola Gìnther, 1888 (Crossochilus), see Acrossocheilus monticola
- monticola Vaillant, 1889 (Lepidoglanis), see Gastromyzon monticola
- monticola Valenciennes, 1836 (Dajaus), see Agonostomus monticola
- ?montillai Martin & Montalban, 1935 (Parapercis)
- montillai de Beaufort, 1939 (Xenojulis), see Xenojulis margaritaceus
- montiregis Cope, 1885 (Cliola), see Cyprinella rutila
- monti-salsa Hora, 1921 (Garra), see Garra gotyla
- montisalsi Hora, 1921 (Garra), see Garra gotyla
- montium Hildebrand, 1938 (Rivulus), see Rivulus brunneus
- ?montrouzieri Thiolli¨re, 1857 (Diagramma)
- ?montrouzieri Thiolli¨re, 1857 (Zanclus)
- montrouzieri Thiolli¨re, 1857 (Pomacentrus), see Pomacentrus trilineatus
- montti Delfin, 1900 (Cilus), see Cilus gilberti
- montuosa Lee et al., 1980 ( Percinanotogramma)
- monunensis Pellegrin, 1928 (Barbus brevispinis var. ), see Barbus brevispinis
- Moojenichthys Miranda-Ribeiro [P.], 1956 (Bryconinae)
- mookalee Cuvier, 1832 (Trachinotus)
- moolenburghae Weber & de Beaufort, 1913 (Pseudeutropius)
- moolenburghi Weber & de Beaufort, 1913 (Hemisilurus)
- Moolgarda (Mugilidae)
- mooni Tchernavin, 1944 (Orestias)
- ?moonta Whitley, 1938 (Cridorsa)
- ?mooreanus Herre, 1935 (Anthias)
- mooreanus Herre, 1935 (Myripristis), see Myripristis pralinius
- mooreh Menon, 1987 (Cobitis), see Acanthocobitis botia
- mooreh Menon, 1987 (Nemacheilus), see Acanthocobitis botia
- mooreh Menon, 1987 (Noemacheilus), see Acanthocobitis botia
- mooreh Sykes, 1839 (Cobitis), see Acanthocobitis botia
- moorei Steindachner, 1878 (Brycon)
- moorei Robins & Ray, 1986 (Dactyloscopus)
- moorei Lee et al., 1980 (Etheostoma)
- moorei Fowler, 1931 (Pseudochromis)
- moorei Smith, 1945 (Kryptopterus)
- ?moorei Evermann & Marsh, 1899 (Malacoctenus)
- ?moorei Thominot, 1880 (Pseudorhombus)
- moorei Fowler, 1906 (Congrammus), see Dactyloscopus moorei
- moorei L©vªque & Daget, 1984 (Raiamas), see Raiamas moorii
- moorei Raney & Suttkus, 1964 (Nothonotus), see Etheostoma moorei
- moorei Welsh, 1923 (Diplophos), see Manducus maderensis
- moorii L©vªque & Daget, 1984 (Raiamas)
- moorii Gosse, 1984 (Marcusenius)
- moorii Eigenmann, 1907 (Astyanacinus)
- moorii Boulenger, 1902 (Cyrtocara)
- moorii Boulenger, 1901 (Gephyrochromis)
- moorii Mar©chal & Poll, 1991 (Neolamprologus)
- moorii Boulenger, 1898 (Tropheus)
- moorii Chao & Trewavas, 1990 (Pseudotolithus)
- moorii (Caecomastacembelus)
- ?moorii Gìnther, 1870 (Muraenichthys)
- moorii Boulenger, 1892 (Tetragonopterus), see Astyanacinus moorii
- moorii Boulenger, 1898 (Lamprologus), see Neolamprologus moorii
- moorii Boulenger, 1898 (Mastacembelus), see Caecomastacembelus moorii
- moorii Boulenger, 1900 (Barilius), see Raiamas moorii
- moorii Boulenger, 1901 (Clarias), see Clarias gariepinus
- moorii Gosse, 1986 (Afromastacembelus), see Caecomastacembelus moorii
- moorii Gìnther, 1865 (Corvina), see Pseudotolithus moorii
- moorii Gìnther, 1867 (Mormyrus), see Marcusenius moorii
- moorii Trewavas, 1962 (Hostia), see Pseudotolithus moorii
- moquensis Ding, 1994 (Triplophysa)
- Mora Risso, 1827 (Moridae)
- ?morabi Montrouzier, 1857 (Trachinotus)
- morabi Montrouzier, 1857 (Seriola), see Trachinotus morabi
- morae Hoedeman, 1952 (Gasteropelecus sternicla), see Gasteropelecus sternicla
- ?morala Hamilton, 1822 (Cyprinus)
- moralesi Fowler, 1942 (Leporinus)
- moralesi de Buen, 1955 (Notropis)
- moralesi G©ry, 1960 (Leporinops), see Leporinus moralesi
- Moralesia Fowler, 1943 (Characinae), see Charax
- Moralesicus Fowler, 1958 (Characinae), see Charax
- morar Shrestha, 1978 (Aspidoparia)
- morar Hamilton, 1822 (Cyprinus), see Aspidoparia morar
- Morara Bleeker, 1859 (Cyprinidae), see Aspidoparia
- ?morarensis Gìnther, 1868 (Barilius)
- ?moratrix Dum©ril, 1858 (Echeneis)
- morawhannae Eigenmann, 1912 (Curimatus), see Steindachnerina guentheri
- Mordacia Gray, 1851 (Mordaciinae)
- Mordaciinae (Petromyzontidae)
- mordax Eschmeyer & Herald, 1983 (Gymnothorax)
- mordax Girard, 1854 (Engraulis)
- mordax Kljukanov & McAllister, 1973 (Osmerus)
- mordax Allen & Robertson, 1994 (Macrodon)
- mordax (Balistes)
- mordax Gray, 1851 (Mordacia)
- ?mordax De Vis, 1883 (Leme)
- mordax Ayres, 1859 (Muraena), see Gymnothorax mordax
- mordax Gilbert & Starks, 1904 (Sagenichthys), see Macrodon mordax
- mordax Gronow, 1854 (Scarus), see Bodianus mesothorax
- mordax Gìnther, 1872 (Lanioperca), see Dinolestes lewini
- mordax Mitchill, 1814 (Atherina), see Osmerus mordax
- mordax Poey, 1860 (Conger), see Echiophis punctifer
- mordax Poey, 1868 (Macrodonophis), see Echiophis punctifer
- mordax Richardson, 1846 (Petromyzon), see Mordacia mordax
- mordax Robins & Ray, 1986 (Echiophis), see Echiophis punctifer
- moreh Menon, 1987 (Noemacheilus), see Acanthocobitis botia
- morei Ortega & Vari, 1986 (Opsodoras)
- morei Steindachner, 1881 (Oxydoras), see Opsodoras morei
- moreirai Haseman, 1911 (Rhamdiopsis)
- moreirai Carvalho & Pinto, 1965 (Paramyxodagnus), see Dactyloscopus crossotus
- morelandi Briggs, 1955 (Dellichthys)
- morelandi Nelson, 1978 (Bembrops)
- morelandi Nelson, 1979 (Hemerocoetes)
- morella Leske, 1774 (Cyprinus), see Phoxinus phoxinus
- morelli Nordmann, 1840 (Crenilabrus), see Symphodus ocellatus
- morena Kaup, 1856 (Anguilla), see Anguilla anguilla
- morenoi (Pseudocetopsis)
- morenoi Burgess, 1989 (Hemicetopsis), see Pseudocetopsis morenoi
- morenoi Fern¡ndez-Y©pez, 1972 (Hemicetopsis), see Pseudocetopsis morenoi
- morenoi Lahille, 1908 (Lycodalepis), see Austrolycus laticinctus
- morenoi Ortega & Vari, 1986 (Hemicetopsis), see Pseudocetopsis morenoi
- moreoticus Stephanidis, 1971 (Leuciscus cephalus), see Leuciscus cephalus
- moreoticus Stephanidis, 1971 (Squalius cephalus), see Leuciscus cephalus
- moresbyensis Macleay, 1882 (Caranx), see Caranx melampygus
- moresbyensis Macleay, 1883 (Pseudoscarus), see Scarus quoyi
- moresbyi Alcock, 1898 (Benthobatis)
- moretonensis Fricke, 1982 (Callionymus)
- moretoniensis Ogilby, 1912 (Leiognathus)
- morgansi Heemstra & Randall, 1986 (Plectranthias)
- morgansi Smith, 1961 (Pelontrus), see Plectranthias morgansi
- morhua Linnaeus, 1758 (Gadus)
- Morhua Fleming, 1828 (Gadinae), see Gadus
- morhua Fleming, 1828 (Morhua), see Gadus morhua
- morhua Oken (ex Cuvier), 1817 (Morrhua), see Gadus morhua
- moriaac Pavlov, 1959 (Alosa kessleri pontica nat. ), see Alosa immaculata
- moriac Antipa, 1909 (Alosa pontica var. ), see Alosa immaculata
- moribundus Cope, 1871 (Balistes), see Balistes carolinensis
- ?moricandi Ranzani, 1842 (Haemulon)
- moricandi (Anisotremus), see Haemulon moricandi
- Moridae (Gadiformes)
- morii Hardisty, 1986 (Eudontomyzon)
- morii Banarescu & Nalbant, 1967 (Sarcocheilichthys nigripinnis), see Sarcocheilichthys nigripinnis
- morii Berg, 1931 (Lampetra), see Eudontomyzon morii
- morii Jordan & Hubbs, 1925 (Sarcocheilichthys), see Sarcocheilichthys nigripinnis
- moringa Robins & Ray, 1986 (Gymnothorax)
- moringa Cuvier, 1829 (Muraena), see Gymnothorax moringa
- Moringua Gray, 1831 (Moringuidae)
- Moringuidae (Anguilliformes)
- morio Matsuura, 1983 (Epinephelus)
- morio Cuvier (ex Lacep¨de), 1833 (Centrolophus), see Centrolophus niger
- morio Jordan & Evermann, 1927 (Vivero), see Epinephelus morio
- morio Valenciennes, 1828 (Serranus), see Epinephelus morio
- moriokae Jordan & Thompson, 1914 (Acheilognathus), see Acheilognathus melanogaster
- moriora Kullander, 1986 (Bujurquina), see Bujurquina moriorum
- moriorum Kullander, 1986 (Bujurquina)
- morissonii Risso, 1827 (Callionymus), see Callionymus risso
- ?moriwaki (Tanaka, 1918) (Sphoeroides)
- moriwaki Tanaka, 1918 (Spheroides), see Sphoeroides moriwaki
- morleti Tirant, 1885 (Botia)
- mormoririk Montrouzier, 1857 (Saurus), see Synodus synodus
- Mormyra Browne, 1789 (Scarinae), see Scarus
- Mormyridae (Osteoglossiformes)
- Mormyrodes Gill, 1862 (Mormyridae), see Mormyrus
- Mormyrops Mìller, 1843 (Mormyridae)
- mormyrops Steindachner, 1875 (Leporinus)
- mormyrops Borodin, 1929 (Hypomasticus), see Leporinus mormyrops
- Mormyrostoma Miranda-Ribeiro, 1911 (Doradidae), see Doras
- Mormyrus Linnaeus, 1758 (Mormyridae)
- mormyrus Mago-Leccia, 1994 (Sternarchorhynchus)
- mormyrus Tortonese, 1973 (Lithognathus)
- mormyrus Cope, 1865 (Campostoma), see Campostoma anomalum
- mormyrus Linnaeus, 1758 (Sparus), see Lithognathus mormyrus
- mormyrus Steindachner, 1868 (Sternarchus), see Sternarchorhynchus mormyrus
- Mormyrynchus Swainson, 1839 (Anostominae), see Anostomus
- moro Cohen, 1973 (Mora)
- moro ( Rajapastinaca)
- moro Risso, 1810 (Gadus), see Mora moro
- moroccanus Borodin, 1934 (Trachinoides), see Merluccius merluccius
- Moroco Jordan & Hubbs, 1925 (Cyprinidae), see Lagowskiella
- Morone Mitchill, 1814 (Moronidae)
- Moronidae (Perciformes)
- Moronopsis Gill, 1863 (Kuhliidae), see Kuhlia
- mororana Jordan & Snyder, 1901 (Chloea), see Chaenogobius mororanus
- mororana Lindberg & Krasyukova, 1975 (Gymnogobius), see Chaenogobius mororanus
- ?mororane Jordan & Seale, 1906 (Stelgistrum)
- mororanus (Chaenogobius)
- morosum Matsubara, 1938 (Laemonema), see Laemonema longipes
- moroti Valenciennes, 1847 (Arius), see Pimelodus albicans
- morrhua Kyushin et al., 1977 (Epinephelus)
- Morrhua Oken (ex Cuvier), 1817 (Gadinae), see Gadus
- morrhua Klunzinger, 1884 (Hyposerranus), see Epinephelus morrhua
- morrhua Valenciennes, 1833 (Serranus), see Epinephelus morrhua
- ?morrigu Larson, 1983 (Lobulogobius)
- morrisi Eigenmann, 1925 (Hemidoras)
- ?morrisi Fowler, 1934 (Oxycirrhites)
- morrisi Jordan & Starks, 1906 (Atherina), see Atherinomorus lacunosus
- morrisianus Lacep¨de, 1800 (Leptocephalus), see Conger conger
- morrisii Gmelin, 1789 (Leptocephalus), see Conger conger
- morrisoni Nakabo, 1984 (Neosynchiropus)
- morrisoni Schultz, 1960 (Synchiropus), see Neosynchiropus morrisoni
- morrisonii Gìnther, 1898 (Opsariichthys), see Opsariichthys uncirostris
- morrowi Heemstra & Gon, 1986 (Pardachirus)
- morrowi Fowler, 1940 (Rineloricaria)
- morrowi Chabanaud, 1954 (Aseraggodes), see Pardachirus morrowi
- morrowi Fowler, 1940 (Liosomadoras), see Liosomadoras oncinus
- morrowi Fowler, 1940 (Rhineloricaria), see Rineloricaria morrowi
- morsitans Bosc, 1800 (Blennius), see Chasmodes bosquianus
- mortenseni Suwardji, 1965 (Callionymus)
- mortenseni Rendahl, 1926 (Enneapterygius), see Notoclinops segmentatus
- mortiauxi Poll, 1943 (Tanganikallabes)
- mortimeri Trewavas, 1983 (Oreochromis)
- mortimeri Skelton & Teugels, 1991 (Serranochromis)
- mortimeri Bell-Cross, 1975 (Haplochromis), see Serranochromis mortimeri
- mortimeri Trewavas, 1966 (Tilapia), see Oreochromis mortimeri
- mortoni (Tandanus)
- ?mortoni Macleay, 1883 (Anthias)
- mortoni Ogilby, 1897 (Coelorhynchus), see Caelorinchus australis
- mortoni Saville-Kent, 1886 (Latris), see Latris lineata
- mortoni Whitley, 1941 (Neosilurus), see Tandanus mortoni
- ?mortoniensis De Vis, 1882 (Pleuronectes)
- mortonii Johnston, 1885 (Labrichthys), see Pseudolabrus psittaculus
- Morua Risso, 1827 (Gadidae), see Trisopterus
- ?morula Nardo, 1827 (Raja)
- Morulius Hamilton, 1822 (Cyprininae)
- Morwong Whitley, 1957 (Cheilodactylidae), see Cheilodactylus
- morwong Ramsay & Ogilby, 1887 (Chilodactylus), see Nemadactylus douglasii
- mosaica De la Pylaie, 1835 (Rajabutis), see Raja undulata
- mosaica Lacep¨de, 1802 (Raja), see Raja undulata
- mosaica Whitley, 1948 (Fimbrinares), see Enchelycore ramosa
- mosaicus Whitley, 1930 (Eubalichthys)
- mosaicus Ramsay & Ogilby, 1886 (Monacanthus), see Eubalichthys mosaicus
- mosal (Tor)
- mosal Hamilton, 1822 (Cyprinus), see Tor mosal
- ?mosario Hamilton, 1822 (Cyprinus)
- mosavi Dale, 1977 (Apogon)
- moseas Valenciennes, 1846 (Cyprinodon), see Aphanius fasciatus
- Moseleya Goode & Bean, 1896 (Macrourinae), see Coryphaenoides
- moseleyi Goode & Bean, 1895 (Gigliolia), see Notacanthus chemnitzii
- moseleyi Jordan & Snyder, 1923 (Gonorhynchus), see Gonorynchus gonorynchus
- moseleyi Regan, 1903 (Chirolophius), see Lophiodes naresi
- moselii Cunningham, 1910 (Leirus), see Schedophilus velaini
- moselii Haedrich, 1967 (Hyperoglyphe), see Schedophilus velaini
- moseri Machida & Ohta, 1993 (Apterichtus)
- moseri Jordan & Gilbert, 1898 (Verasper)
- moseri Jordan & Snyder, 1901 (Sphagebranchus), see Apterichtus moseri
- mosis Klunzinger (ex Ehrenberg), 1871 (Mustelus), see Mustelus mustelus
- mosoensis De Vos & Seegers, 1998 (Orthochromis)
- mossambica Castle, 1984 (Anguilla)
- mossambica Jubb & Bell-Cross, 1974 (Parakneria)
- mossambica Smith, 1955 (Siphamia)
- mossambica Smith, 1955 (Croilia)
- mossambica Smith, 1959 (Pleurosicya)
- mossambica Chan & Chilvers, 1974 (Wattsia)
- mossambica Dor, 1984 (Parascorpaena)
- mossambica Lee et al., 1980 (Tilapia), see Sarotherodon mossambicus
- mossambica Maug©, 1986 (Croila), see Croilia mossambica
- mossambica Peters, 1852 (Muraena), see Anguilla mossambica
- mossambica Peters, 1855 (Scorpaena), see Parascorpaena mossambica
- mossambica Smith, 1963 (Acentronura), see Acentronura tentaculata
- mossambicus Peters, 1852 (Distichodus)
- mossambicus Smith, 1959 (Meiacanthus)
- mossambicus (Trewavas, 1983) (Sarotherodon)
- mossambicus Ortega & Vari, 1986 (Oreochromis), see Sarotherodon mossambicus
- mossambicus Peters, 1852 (Chanos), see Chanos chanos
- mossambicus Peters, 1852 (Chromis), see Sarotherodon mossambicus
- mossambicus Peters, 1852 (Clarias), see Clarias gariepinus
- mossambicus Peters, 1852 (Tilapia), see Sarotherodon mossambicus
- mossambicus Peters, 1855 (Syngnathus), see Hippichthys cyanospilos
- mossambicus Smith, 1951 (Cirrhitus), see Cirrhitus punctatus
- mossambicus Smith, 1953 (Teixeirichthys), see Teixeirichthys jordani
- mossambicus Smith, 1957 (Gnathodentex), see Wattsia mossambica
- mossambicus Trewavas, 1983 (Oreochromis), see Sarotherodon mossambicus
- mossulensis Bianco & Banarescu, 1982 (Chalcalburnus), see Chalcalburnus sellal
- mossulensis Heckel, 1843 (Alburnus), see Chalcalburnus sellal
- moszkowskii Ahl, 1922 (Labeo)
- motaguense (Parapetenia)
- motaguense Conkel, 1993 (Cichlasoma), see Parapetenia motaguense
- motaguensis Burgess, 1989 (Rhamdia), see Rhamdia laticauda
- motaguensis Gìnther, 1864 (Pimelodus), see Rhamdia laticauda
- motaguensis Gìnther, 1867 (Heros), see Parapetenia motaguense
- motatanensis La Marca, 1997 (Bryconamericus)
- motatanensis La Marca, 1997 (Pseudocetopsis)
- motatanensis (Trichomycterus)
- motatanensis Burgess, 1989 (Hemicetopsis plumbeus), see Pseudocetopsis motatanensis
- motatanensis Schultz, 1944 (Pygidium emanueli), see Trichomycterus motatanensis
- motebensis Steindachner, 1894 (Barbus)
- Motella Cuvier, 1829 (Lotidae), see Gaidropsarus
- motius Hamilton, 1822 (Clupanodon), see Ilisha megaloptera
- motoro (Paratrygon)
- motoro (Fowler) (Potamotrygon)
- motoro Fowler (Paratrygon), see Potamotrygon motoro
- motoro Mìller & Henle (ex Natterer), 1841 (Taeniura), see Potamotrygon motoro
- motoro Natterer, 1836 (Raja), see Potamotrygon motoro
- motta Cuvier, 1829 (Elacate), see Rachycentron canadum
- moucharra Lacep¨de, 1802 (Glyphisodon), see Abudefduf saxatilis
- mouchezi Eschmeyer & Hureau, 1971 (Helicolenus)
- mouchezi Sauvage, 1875 (Sebastes), see Helicolenus mouchezi
- mouhoti Smith, 1945 (Chela), see Chela caeruleostigmata
- mouldi McEachran & Matheson, 1995 (Breviraja)
- moulouyensis Pellegrin, 1924 (Barbus), see Barbus callensis
- moultoni Whitley, 1961 (Scorpaena)
- mounseyi Burgess, 1989 (Rhamdia), see Rhamdia quelen
- mounseyi Regan, 1913 (Rhamdia), see Rhamdia quelen
- mourlani (Carapus)
- mourlani Petit, 1934 (Fierasfer), see Carapus mourlani
- ?mowa Bleeker, 1853 (Anguilla)
- mowbrayi Greenfield, 1988 (Lythrypnus)
- mowbrayi Woods & Kanazawa, 1951 (Liopropoma)
- ?mowbrayi Breder, 1936 (Anisotremus)
- mowbrayi Bean, 1906 (Rhinogobius), see Lythrypnus mowbrayi
- mowbrayi Beebe & Tee-Van, 1932 (Eucinostomus), see Eucinostomus havana
- mowbrayi Grey, 1951 (Grammonus), see Pteraclis claudei
- mowbrayi Jordan & Evermann, 1927 (Haemulon), see Haemulon macrostoma
- Moxostoma Rafinesque, 1820 (Catostominae)
- moyeri Zaiser & Fricke, 1985 (Synchiropus)
- moyeri Shepard & Meyer, 1978 (Macropharyngodon)
- mozambiquensis Smith, 1961 (Archamia)
- mozinoi Kanayama, 1991 (Hypsagonus)
- mozinoi Wilimovsky & Wilson, 1979 (Agonomalus), see Hypsagonus mozinoi
- mpozoensis Roberts & Stewart, 1976 (Steatocranus)
- mrakovcici (Knipowitschia)
- mìrgo Dybowski, 1869 (Cyprinus carpio var. ), see Cyprinus carpio
- mrigala Shrestha, 1978 (Cirrhinus)
- Mrigala Bleeker, 1859 (Cyprinidae), see Cirrhinus
- mrigala Hamilton, 1822 (Cyprinus), see Cirrhinus mrigala
- mu Randall & Caldwell, 1966 (Calamus)
- ?muatsi Bleeker (ex Gill), 1879 (Siniperca)
- mubiensis Allen, 1996 (Melanotaenia)
- ?muchsan Gmelin, 1789 (Salmo)
- mucifer Snyder, 1904 (Gymnothorax)
- mucipara Alcock, 1891 (Dysommopsis), see Dysomma muciparus
- muciparus Robins & Robins, 1989 (Dysomma)
- muciparus Eschmeyer, 1969 (Scorpaenodes)
- muciparus Alcock, 1889 (Sebastes), see Scorpaenodes muciparus
- muciparus Alcock, 1891 (Dysommopsis), see Dysomma muciparus
- muciveri (Barbus), see Hypselobarbus jerdoni
- muciveri (Puntius), see Hypselobarbus jerdoni
- muciveri Annandale, 1919 (Barbus jerdoni var. ), see Hypselobarbus jerdoni
- mucocephalus Marshall, 1973 (Ventrifossa)
- Mucogobius McCulloch, 1912 (Gobiidae), see Callogobius
- mucosa Eigenmann & Ward, McAtee & Ward, 1907 (Pimelodella)
- mucosa (Trygonoptera)
- ?mucosa Steller, 1814 (Raja)
- mucosa Bleeker, 1874 (Lycodalepis), see Lycodes mucosus
- mucosa Vaillant, 1880 (Platystoma), see Platystomatichthys mucosus
- ?mucosissima Nardo, 1827 (Raja)
- mucosum Girard, 1858 (Xiphidion), see Xiphister mucosus
- mucosum Jordan, 1880 (Xiphister), see Xiphister mucosus
- mucosus Gomon et al., 1994 (Callogobius)
- mucosus Eschmeyer & Herald, 1983 (Xiphister)
- mucosus Richardson, 1855 (Lycodes)
- mucosus Ayres, 1855 (Liparis)
- mucosus Vaillant, 1879 (Platystomatichthys)
- mucosus Gìnther, 1872 (Gobius), see Callogobius mucosus
- mucosus McCulloch, 1912 (Mucogobius), see Callogobius mucosus
- mucosus Paxton et al., 1989 (Urolophus), see Trygonoptera mucosa
- mucosus Steindachner, 1875 (Neoliparis), see Liparis mucosus
- mucosus Whitley, 1939 (Trygonoptera), see Trygonoptera mucosa
- mucosus Whitley, 1939 (Urolophus), see Trygonoptera mucosa
- mucrocephala De la Pylaie, 1835 (Anguilla [vulgaris] var. ), see Anguilla anguilla
- mucronata Eydoux & Souleyet, 1850 (Pristipoma), see Hapalogenys mucronatus
- mucronata Rafinesque, 1818 (Perca), see Morone americana
- mucronatum Mitchill, 1815 (Ophidium), see Pholis gunnellus
- mucronatus Girard, 1858 (Neoconger)
- mucronatus Lacep¨de, 1800 (Odontognathus)
- mucronatus Eigenmann, 1909 (Astyanax)
- mucronatus (Hapalogenys)
- mucronatus Klunzinger, 1871 (Maurolicus)
- mucronatus Bloch & Schneider, 1801 (Gnathobolus), see Odontognathus mucronatus
- mucronatus Eigenmann & Kennedy, 1902 (Leptocephalus), see Ophichthus cruentifer
- mucronatus Regan & Trewavas, 1932 (Dolopichthys), see Dolopichthys longicornis
- mucupe Peters, 1852 (Mormyrus), see Mormyrus longirostris
- mucuryna Ihering, 1914 (Crenicichla)
- mudfish Lacep¨de, 1803 (Fundulus), see Fundulus heteroclitus
- mudumalaiensis Menon & Rema Devi, 1992 (Puntius)
- mudumalaiensis (Barbus), see Puntius mudumalaiensis
- muelleri (Paragoniates)
- muelleri (Leporinus)
- muelleri Whitehead, 1985 (Sprattus)
- muelleri Eigenmann, 1905 (Sternarchorhamphus)
- muelleri Ortega & Vari, 1986 (Hypopomus)
- muelleri Klunzinger, 1880 (Ambassis)
- muelleri Whitley, 1943 (Istiblennius)
- muelleri Allen, 1980 (Chelmon)
- muelleri Steindachner, 1878 (Leptobrama)
- muelleri (Pempheris)
- muelleri Gomon et al., 1994 (Arnoglossus)
- muelleri Silfvergrip, 1996 (Rhamdia)
- muelleri (Silurus)
- muelleri Witzell, 1973 (Maurolicus)
- ?muelleri Gìnther, 1909 (Brotula)
- ?muelleri Klunzinger, 1880 (Antigonia)
- muelleri Bleeker, 1851 (Wallago), see Silurus muelleri
- muelleri Gmelin, 1789 (Salmo), see Maurolicus muelleri
- muelleri Goode & Bean, 1896 (Benthosema), see Maurolicus muelleri
- muelleri Gìnther, 1864 (Creagrutus), see Leporinus muelleri
- muelleri Gìnther, 1864 (Pimelodus), see Rhamdia muelleri
- muelleri Gìnther, 1870 (Ginglymostoma), see Ginglymostoma ferrugineum
- muelleri Klunzinger, 1872 (Dinolestes), see Dinolestes lewini
- muelleri Klunzinger, 1872 (Pseudorhombus), see Arnoglossus muelleri
- muelleri Klunzinger, 1880 (Beryx), see Centroberyx lineatus
- muelleri Klunzinger, 1880 (Chelmo), see Chelmon muelleri
- muelleri Klunzinger, 1880 (Clupea), see Sprattus muelleri
- muelleri Klunzinger, 1880 (Cnidoglanis), see Paraplotosus albilabris
- muelleri Klunzinger, 1880 (Mugil), see Mugil cephalus
- muelleri Klunzinger, 1880 (Pempheris), see Pempheris klunzingeri
- muelleri Klunzinger, 1880 (Platycephalus), see Inegocia bosschei
- muelleri Klunzinger, 1880 (Platychoerops), see Achoerodus gouldii
- muelleri Klunzinger, 1880 (Pseudochromis), see Pseudochromis punctatus
- muelleri Klunzinger, 1880 (Salarias), see Istiblennius muelleri
- muelleri Klunzinger, 1880 (Umbrina), see Johnius amblycephalus
- muelleri Mìller & Henle (ex Valenciennes), 1839 (Carcharias), see Scoliodon laticaudus
- muelleri Mìller & Henle (ex Valenciennes), 1839 (Physodon), see Scoliodon laticaudus
- muelleri Ortega & Vari, 1986 (Rhamphichthys), see Hypopomus muelleri
- muelleri Pietschmann, 1939 (Clarias), see Clarias gariepinus
- muelleri Scheel, 1968 (Aphyosemion), see Aphyosemion liberiense
- muelleri Steindachner, 1866 (Trygonoptera), see Urolophus testaceus
- muelleri Steindachner, 1867 (Carcharias), see Carcharhinus limbatus
- muelleri Steindachner, 1867 (Prionodon), see Carcharhinus limbatus
- muelleri Steindachner, 1876 (Leporinus), see Leporinus moralesi
- muelleri Steindachner, 1879 (Sciaena), see Nibea soldado
- muelleri Steindachner, 1881 (Rhamphosternarchus), see Sternarchorhamphus muelleri
- muelleri Steindachner, 1881 (Sternarchus), see Sternarchorhamphus muelleri
- muelleri Thominot, 1880 (Lepidomegas), see Arripis truttaceus
- muelleri Valenciennes, 1838 (Physodon), see Scoliodon laticaudus
- ?muellerii (Triportheus)
- muellerii De Filippi, 1853 (Chalcinus), see Triportheus muellerii
- muellerii Smith, 1851 (Triglochis), see Odontaspis taurus
- muergo Dybowski, 1869 (Cyprinus carpio var. ), see Cyprinus carpio
- mugah Day, 1869 (Nemacheilus), see Nemacheilus scaturigina
- Mugil Linnaeus, 1758 (Mugilidae)
- mugil Dor, 1984 (Kuhlia)
- mugil Forster, 1801 (Sciaena), see Kuhlia mugil
- Mugilidae (Mugiliformes)
- Mugiliformes (Actinopterygii)
- mugilis Vallot, 1837 (Cyprinus), see Leuciscus leuciscus
- Mugilogobius Smitt, 1900 (Gobiinae)
- mugiloides Crowley & Ivantsoff, 1988 (Craterocephalus)
- ?mugiloides Valenciennes, 1837 (Eleotris)
- mugiloides McCulloch, 1912 (Atherina), see Craterocephalus mugiloides
- mugiloides Whitley, 1943 (Allanetta), see Craterocephalus mugiloides
- Mugilomorus Lacep¨de, 1803 (Elopidae), see Elops
- Mugilops Meek & Hildebrand, 1923 (Menidiinae), see Melanorhinus
- Mugilostoma Hildebrand & Schroeder, 1928 (Gobiinae), see Evorthodus
- muhlisi Baillie & Groombridge (eds.), 1996 (Clupeonella abrau), see Clupeonella abrau
- muhlisi Neu, 1934 (Clupeonella), see Clupeonella abrau
- ?muikisi Walbaum, 1792 (Salmo)
- mukambbikaensis Menon, 1987 (Nemacheilus), see Nemacheilus denisoni
- mukambbikaensis Menon, 1987 (Noemacheilus denisoni), see Nemacheilus denisoni
- mukherjii Ganguly & Datta, 1977 (Mystus), see Mystus cavasius
- muksun Smitt, 1886 (Coregonus)
- muksun Pallas, 1814 (Salmo), see Coregonus muksun
- ?mula Forssk¥l, 1775 (Raja)
- Mulgoa Ogilby, 1897 (Eleotridae), see Gobiomorphus
- mulhalli Macleay, 1884 (Lepidotrigla)
- mulhalli Whitley, 1959 (Hatha), see Lepidotrigla mulhalli
- Mulichthys Lloyd, 1909 (Nomeidae), see Cubiceps
- ?mullaeri Kro{/yer, 1838 (Maurolicus)
- ?mullani Hora, 1926 ( Polynemussextarius)
- mulleri Valenciennes, 1846 (Orestias)
- ?mulleri Kaup, 1856 (Muraena)
- mulleri Allen & Leggett, 1990 (Ambassis), see Ambassis muelleri
- mulleri Castelnau, 1855 (Sternarchorhynchus), see Sternarchorhynchus oxyrhynchus
- mulleri Castelnau, 1855 (Taenura), see Urolophus testaceus
- mulleri Castelnau, 1855 (Trygon), see Urolophus testaceus
- mulleri Gill, 1864 (Hypopomus), see Hypopomus muelleri
- mulleri Kaup, 1856 (Rhamphichthys), see Hypopomus muelleri
- mullerianus Risso, 1840 (Gymnetrus), see Zu cristatus
- Mullhypeneus Poey, 1867 (Mullidae), see Pseudupeneus
- mullicephalus Kuhl & van Hasselt, 1851 (Caranx), see Caranx tille
- Mullidae (Perciformes)
- mullo¯des Bleeker, 1852 (Dentex), see Nemipterus peronii
- Mulloides (Mullidae)
- Mulloides Richardson (ex Solander), 1843 (Arripidae), see Arripis
- mulloides Bleeker, 1852 (Dentex), see Nemipterus peronii
- mulloides Smith, 1939 (Nemipterus), see Nemipterus bipunctatus
- Mulloidichthys Whitley, 1929 (Mullidae)
- mullorum Cuvier, 1828 (Apogon rex), see Apogon imberbis
- Mullus Linnaeus, 1758 (Mullidae)
- mullus Lacep¨de, 1802 (Centropomus), see Dicentrarchus labrax
- mullya Talwar & Jhingran, 1991 (Garra)
- mullya Sykes, 1839 (Chondrostoma), see Garra mullya
- mulsanti Thiolli¨re, 1857 (Chaetodon), see Chaetodon ephippium
- multaka Balletto & Spanâ, 1977 (Garra tibanica), see Garra tibanica
- multiannularis Ginsburg, 1937 (Hippocampus guttulatus), see Hippocampus ramulosus
- multiannularis Raj, 1941 (Hippocampus kuda), see Hippocampus raji
- multiannulatus (Doryrhamphus)
- multiannulatus Dor, 1984 (Dunckerocampus), see Doryrhamphus multiannulatus
- multiannulatus Regan, 1903 (Doryichthys), see Doryrhamphus multiannulatus
- multibarbata Temminck & Schlegel, 1846 (Brotula)
- multibarbus Richardson, 1848 (Choridactylus)
- multibranchus Wongratana, 1987 (Stolephorus)
- ?multicauda Walbaum, 1792 (Muraena)
- multicinctus Garrett, 1863 (Chaetodon)
- multicirrata Vaillant & Sauvage, 1875 (Brotula), see Brotula multibarbata
- multicolor (Pseudocrenilabrus)
- multicolor Randall & Wass, 1974 (Centropyge)
- ?multicolor Richardson, 1848 (Apistus)
- multicolor Greenwood, 1965 (Hemihaplochromis), see Pseudocrenilabrus multicolor
- multicolor Hilgendorf, 1903 (Paratilapia), see Pseudocrenilabrus multicolor
- multicolor Kuhl & van Hasselt, 1829 (Scorpaena), see Scorpaenopsis diabolus
- multicolor Kuhl & van Hasselt, 1876 (Scorpaena), see Scorpaenopsis diabolus
- multicolor Meinken, 1930 (Aphyosemion bivittatum), see Aphyosemion bitaeniatum
- multicolor Meinken, 1930 (Fundulopanchax), see Aphyosemion bitaeniatum
- multicolor Radda, 1971 (Chromaphyosemion), see Aphyosemion bitaeniatum
- multicolor Rìppell, 1835 (Halichoeres), see Coris caudimacula
- multicolor Schoeller, 1903 (Chromis), see Pseudocrenilabrus multicolor
- multicolor Wickler, 1963 (Hemihaplochromis), see Pseudocrenilabrus multicolor
- multicolor Wildekamp, Romand & Scheel, 1986 (Aphyosemion), see Aphyosemion bitaeniatum
- multicostatus Gronow, 1854 (Labrus), see Halichoeres bivittatus
- multidens McAllister, 1990 (Myxus)
- multidens Pearson, 1924 (Astyanacinus)
- multidens Eigenmann, 1908 (Astyanax)
- multidens Regan, 1922 (Heterochromis)
- multidens Kyushin et al., 1977 (Pristipomoides)
- multidens Dor, 1984 (Pentapodus)
- multidens Fernholm & Hubbs, 1981 (Eptatretus)
- ?multidens Nielsen, 1984 (Barathronus)
- multidens Castelnau, 1855 (Conger), see Conger orbignianus
- multidens Day, 1871 (Mesoprion), see Pristipomoides multidens
- multidens Ogilby, 1888 (Trachystoma), see Myxus multidens
- multidens Pellegrin, 1900 (Paratilapia), see Heterochromis multidens
- multidens Steindachner, 1915 (Batrachops), see Crenicichla scottii
- multidens Steindachner, 1915 (Crenicichla), see Crenicichla scottii
- multidens Valenciennes, 1830 (Dentex), see Pentapodus multidens
- multidentata Gìnther, 1866 (Fitzroyia), see Jenynsia lineata
- multidentata Jenyns, 1842 (Lebias), see Jenynsia lineata
- multidentatus Blache & Bauchot, 1972 (Dalophis)
- multidentatus Poll, 1952 (Plecodus)
- multidentatus Thompson, 1837 (Crenilabrus), see Labrus bergylta
- multifaciata Lesueur, 1817 (Hydrargira), see Fundulus diaphanus
- multifasciata Kim & Lee, 1995 (Niwaella)
- multifasciata (Schistura)
- multifasciata Dæderlein, 1884 (Parapercis)
- ?multifasciata Regan, 1905 (Botia)
- multifasciata Burgess, 1991 (Paracentropyge), see Paracentropyge multifasciatus
- multifasciata Castelnau, 1855 (Cycla), see Crenicichla
- multifasciata Girard, 1859 (Adinia), see Adinia xenica
- multifasciata Kaup, 1856 (Thyrsoidea), see Gymnothorax richardsonii
- multifasciata Lesueur, 1821 (Sciaena), see Leiostomus xanthurus
- multifasciata Thominot, 1886 (Ctenopoma), see Ctenopoma maculatum
- multifasciata Wakiya & Mori, 1929 (Cobitis), see Niwaella multifasciata
- multifasciata Yoshino & Iwai, 1973 (Pristigenys), see Pristigenys meyeri
- multifasciatum Steindachner, 1876 (Gobiosoma)
- multifasciatum Conkel, 1993 (Cichlasoma), see Parapetenia friedrichsthalii
- multifasciatum Kishinouye, 1915 (Cybium), see Scomberomorus commerson
- multifasciatum Regan, 1905 (Cichlosoma), see Parapetenia friedrichsthalii
- multifasciatus Eigenmann, 1910 (Hollandichthys)
- multifasciatus Cope, 1878 (Leporinus)
- multifasciatus Daget & Gosse, 1984 (Hemigrammocharax)
- multifasciatus Pellegrin & Fang, 1935 (Paraprotomyzon)
- multifasciatus (Nemacheilus)
- multifasciatus Wildekamp et al., 1986 (Epiplatys)
- multifasciatus Sazonov & Iwamoto, 1992 (Caelorinchus)
- multifasciatus (Ctenobrycon)
- multifasciatus Colombe & Allgayer, 1985 (Neolamprologus)
- multifasciatus Trewavas & Teugels, 1991 ( Sarotherodongalilaeus)
- multifasciatus (Dichistius)
- multifasciatus Hoese, 1986 (Caffrogobius)
- multifasciatus Myers, 1991 (Parupeneus)
- multifasciatus (Paracentropyge)
- multifasciatus Gill, 1863 (Pronotogrammus)
- multifasciatus Toyoshima, 1984 (Lycodes)
- multifasciatus (Pseudochalceus), see Hollandichthys multifasciatus
- multifasciatus Allen, 1980 (Centropyge), see Paracentropyge multifasciatus
- multifasciatus Boulenger, 1906 (Lamprologus), see Neolamprologus multifasciatus
- multifasciatus Boulenger, 1913 (Haplochilus), see Epiplatys multifasciatus
- multifasciatus Boulenger, 1923 (Nannocharax), see Hemigrammocharax multifasciatus
- multifasciatus Day, 1878 (Nemacheilus), see Schistura multifasciata
- multifasciatus Eigenmann & Norris, 1900 (Tetragonopterus), see Hollandichthys multifasciatus
- multifasciatus Gìnther, 1903 (Chromis), see Sarotherodon galilaeus multifasciatus
- multifasciatus Heemstra, 1986 (Parapercis), see Parapercis multifasciata
- multifasciatus Herre, 1927 (Rhinogobius), see Caffrogobius nudiceps
- multifasciatus Menon, 1987 (Nemacheilus), see Schistura multifasciata
- multifasciatus Menon, 1987 (Noemacheilus), see Schistura multifasciata
- multifasciatus Pellegrin, 1914 (Dipterodon), see Dichistius multifasciatus
- multifasciatus Prince Akihito, 1984 (Acentrogobius), see Caffrogobius nudiceps
- multifasciatus Quoy & Gaimard, 1825 (Mullus), see Parupeneus multifasciatus
- multifasciatus Radda & Huber, 1977 (Aplocheilus), see Epiplatys berkenkampi
- multifasciatus Seale, 1906 (Abudefduf), see Abudefduf septemfasciatus
- multifasciatus Smith & Radcliffe, 1911 (Holacanthus), see Paracentropyge multifasciatus
- multifasciatus Smith, 1959 (Acentrogobius), see Caffrogobius multifasciatus
- multifasciatus Smith, 1986 (Coracinus), see Dichistius multifasciatus
- multifenestratus Castelnau, 1872 (Cristiceps), see Heteroclinus tristis
- multifilis Okamura, 1984 (Gadomus)
- multifilis Nielsen & Cohen, 1986 (Dicrolene)
- multifilis Gill, 1861 (Hypleurochilus)
- multifilis Schlegel, 1843 (Polynemus)
- multifilis Parin & Pokhil'skaya, 1978 (Eustomias)
- multifilis Imai, 1941 (Leptostomias)
- multifilis Alcock, 1889 (Paradicrolene), see Dicrolene multifilis
- multifilis Gill, 1861 (Polistonemus), see Polynemus multifilis
- multifilis Girard, 1858 (Blennius), see Hypleurochilus multifilis
- multifilis Gìnther, 1887 (Bathygadus), see Gadomus multifilis
- multifilis Regan & Trewavas, 1932 (Dolopichthys), see Oneirodes eschrichtii
- multiform Mitchill, 1815 (Gadus tomcodus), see Microgadus tomcod
- ?multifurcatus Bertelsen & Krefft, 1988 (Himantolophus)
- multiguttatum Gìnther, 1867 (Plectropoma), see Alphestes multiguttatus
- multiguttatus Heemstra & Randall, 1993 (Alphestes)
- multilepis Fang & Chong, 1932 (Siniperca chuatsi), see Siniperca chuatsi
- multilineata Smith-Vaniz & Emery, 1980 (Chromis)
- ?multilineata Clarke, 1899 (Girella)
- multilineata Bleeker, 1874 (Amia), see Apogon multilineatus
- multilineata Lesueur, 1821 (Poecilia), see Poecilia latipinna
- multilineatum Randall & Taylor, 1988 (Liopropoma)
- multilineatum Poey, 1860 (Haemulon), see Haemulon sciurus
- multilineatus Vari & Barriga S., 1990 (Cyphocharax)
- multilineatus Worthington, 1933 (Barbus)
- multilineatus Cui, Zhou & Lan, 1993 (Discogobio)
- multilineatus Rauchenberger, Kallman & Morizot, 1990 (Xiphophorus)
- multilineatus Allen, 1993 (Apogon)
- multilineatus Wu, 1979 (Gobiodon)
- multilineatus Kyushin et al., 1977 (Cantherhines)
- multilineatus Cuvier (ex Lesueur), 1829 (Labrax), see Morone chrysops
- multilineatus Fowler, 1945 (Salarias), see Istiblennius lineatus
- multilineatus Guichenot, 1853 (Heliases), see Chromis multilineata
- multilineatus Myers, 1927 (Curimatus), see Cyphocharax multilineatus
- multilineatus Robins & Ray, 1986 (Heliases), see Chromis multilineata
- multilineatus Smith, 1846 (Mugil), see Chelon richardsonii
- multilineatus Tanaka, 1918 (Pseudomonacanthus), see Cantherhines multilineatus
- ?multiloba Mai, 1978 (Homaloptera)
- multimaculata Boulenger, 1911 (Lebiasina)
- multimaculata Steindachner, 1908 (Zungaropsis), see Zungaropsis multimaculatus
- multimaculatum Roux, 1986 (Pomadasys)
- multimaculatum Playfair, 1867 (Pristipoma), see Pomadasys multimaculatum
- multimaculatum Scott, 1935 (Parascyllium), see Parascyllium ferrugineum
- multimaculatum Whitley, 1939 (Neoparascyllium), see Parascyllium ferrugineum
- multimaculatus Smith, 1955 (Laiphognathus)
- multimaculatus Steindachner, 1907 (Corydoras)
- multimaculatus Boulenger, 1902 (Synodontis)
- multimaculatus Steindachner, 1908 (Zungaropsis)
- ?multimaculatus Hosoya & Jeon, 1984 (Squalidus)
- ?multimaculatus Wu & Zheng, 1985 (Ctenogobius)
- ?multimaculatus Regan, 1903 (Pseudomonacanthus)
- ?multimaculatus (Li©nard, 1839) (Tetraodon)
- multimaculatus Cuvier, 1818 (Diodon), see Diodon holocanthus
- multimaculatus Gìnther, 1862 (Pseudorhombus), see Pseudorhombus jenynsii
- multimaculatus Kotthaus, 1969 (Cypselurus), see Cheilopogon atrisignis
- multimaculatus Li©nard, 1839 (Tetrodon), see Tetraodon multimaculatus
- multimaculatus Rendahl, 1944 (Misgurnus mizolepis), see Misgurnus mizolepis
- multimaculatus Steindachner, 1870 (Barbus), see Pseudobarbus burchelli
- multimaculatus Steindachner, 1870 (Leptocephalus), see Heteroconger hassi
- multinotatus Heemstra & Randall, 1986 (Epinephelus)
- multinotatus Peters, 1876 (Serranus), see Epinephelus multinotatus
- multiocellata Ochiai & Yatou, 1984 (Pterygotrigla)
- multiocellata Matsubara, 1937 (Parapterygotrigla), see Pterygotrigla multiocellata
- multiocellata Poey, 1860 (Muraena), see Muraena miliaris
- multiocellatus Robins & Ray, 1986 (Antennarius)
- multiocellatus van Oijen et al., 1991 (Haplochromis)
- multiocellatus Boulenger, 1913 (Pelmatochromis), see Haplochromis multiocellatus
- multiocellatus Valenciennes, 1837 (Chironectes), see Antennarius multiocellatus
- multipapillatus Costa, 2002 (Cynopoecilus)
- ?multipapillatus Banarescu & Nalbant, 1973 ( Microphysogobiochinssuensis)
- multiplicata Randall, 1984 (Parapercis)
- multipora Smith, 1989 (Linkenchelys)
- multiporis Parenti, 1984 (Orestias)
- multiporosa Karrer, 1982 (Venefica)
- multiporosus Allen & Robertson, 1994 (Labrisomus)
- multipunctata Espinosa P©rez et al., 1993 (Skiffia)
- multipunctata Sazonov & Parin, 1977 (Microphotolepis)
- ?multipunctata Yatou & Yamakawa, 1983 (Pterygotrigla)
- multipunctata Brauer, 1906 (Scopelopsis), see Scopelopsis multipunctatus
- multipunctata Chapman, 1939 (Photonectops), see Tactostoma macropus
- multipunctata Pellegrin, 1909 (Amphilius nigricaudatus var. ), see Amphilius brevis
- multipunctatum Regan, 1906 (Sicydium)
- multipunctatum Pellegrin, 1901 (Xenendum), see Skiffia multipunctata
- multipunctatus Chu & Cui, 1989 (Sinocyclocheilus)
- multipunctatus Brauer, 1906 (Scopelopsis)
- multipunctatus Boulenger, 1898 (Synodontis)
- multipunctatus Chapman, 1939 (Photonectops), see Tactostoma macropus
- multipunctatus Hubbs & Turner, 1939 (Ollentodon), see Skiffia multipunctata
- multipunctatus Kossmann & R¤uber, 1877 (Serranus celebicus var. ), see Epinephelus chlorostigma
- multipunctatus Pellegrin, 1931 (Schizothorax), see Sinocyclocheilus multipunctatus
- multipunctatus Springer, 1959 (Malacoctenus afuerae), see Malacoctenus tetranemus
- multipunctatus Turner, 1937 (Ollentodon), see Skiffia multipunctata
- multiradiata Roberts, 1982 (Glaniopsis)
- multiradiata Castelnau, 1872 (Neosphyraena), see Dinolestes lewini
- multiradiata Holly, 1928 (Tilapia sparrmani), see Tilapia zillii
- multiradiata Mooi & Jubb, 1996 (Pempheris), see Pempheris multiradiatus
- multiradiatum Scott, 1977 (Forsterygion), see Forsterygion varium
- multiradiatum Thompson, 1916 (Laemonema), see Laemonema globiceps
- multiradiatus Espinosa P©rez et al., 1993 (Girardinichthys)
- multiradiatus (Simpsonichthys)
- multiradiatus Walters, 1960 (Metavelifer)
- multiradiatus McCulloch & Waite, 1918 (Dermatopsis)
- multiradiatus Dahl, 1960 (Bryconamericus)
- multiradiatus (Pseudotrypauchen)
- multiradiatus Klunzinger, 1880 (Pempheris)
- multiradiatus Allen & Swainston, 1988 (Polydactylus)
- multiradiatus Munro, 1964 (Scomberomorus)
- multiradiatus Berg, 1933 (Batrachocottus)
- multiradiatus Roberts, 1992 (Mystus)
- multiradiatus (Cathorops)
- multiradiatus Nijssen & Isbrìcker, 1970 (Brochis)
- multiradiatus (Liposarcus)
- multiradiatus Ihering, 1907 (Heptapterus)
- ?multiradiatus Meek & Hildebrand, 1928 (Microdesmus)
- ?multiradiatus Kner, 1858 (Pimelodus)
- multiradiatus Bleeker, 1846 (Plotosus), see Plotosus canius
- multiradiatus Burgess, 1989 (Arius), see Cathorops multiradiatus
- multiradiatus Bussing & Lãpez S., 1994 (Cathorops'), see Cathorops multiradiatus
- multiradiatus Castelnau, 1861 (Cheilodactylus), see Cheilodactylus fasciatus
- multiradiatus Costa & Brasil, 1994 (Cynolebias), see Simpsonichthys multiradiatus
- multiradiatus Gìnther, 1860 (Polynemus), see Polydactylus multiradiatus
- multiradiatus Gìnther, 1864 (Arius), see Cathorops multiradiatus
- multiradiatus Gìnther, 1864 (Notoglanis), see Pimelodus multiradiatus
- multiradiatus Gìnther, 1870 (Monacanthus), see Meuschenia freycineti
- multiradiatus Gìnther, 1872 (Cubiceps), see Psenes cyanophrys
- multiradiatus Gìnther, 1874 (Myripristes), see Myripristis kuntee
- multiradiatus Hancock, 1828 (Hypostomus), see Liposarcus multiradiatus
- multiradiatus Hubbs, 1926 (Lermichthys), see Girardinichthys multiradiatus
- multiradiatus Isbrìcker, 1980 (Pterygoplichthys), see Liposarcus multiradiatus
- multiradiatus Koller, 1926 (Pseudeutropichthys), see Cranoglanis bouderius
- multiradiatus Macleay, 1882 (Pseudorhombus), see Pseudorhombus jenynsii
- multiradiatus Matsubara & Iwai, 1954 (Liparis), see Liparis ochotensis
- multiradiatus Meek, 1904 (Characodon), see Girardinichthys multiradiatus
- multiradiatus Orc©s, 1960 (Chaenothorax), see Brochis multiradiatus
- multiradiatus Regan, 1907 (Velifer), see Metavelifer multiradiatus
- multiradiatus Schultz, 1943 (Phtheirichthys), see Phtheirichthys lineatus
- multiradiatus Steindachner, 1861 (Caesio), see Pterocaesio tile
- multiradiatus Steindachner, 1876 (Tetragonopterus), see Ctenobrycon spilurus hauxwellianus
- ?multirastris Parin, 1983 (Arnoglossus)
- multiscutatus Tanaka, 1908 (Acipenser)
- multiserialis McCosker, 1998 (Xyrias)
- multiserialis Norman, 1939 (Ophichthus), see Xyrias multiserialis
- multispinatus Berg, 1949 (Coregonus lavaretus), see Coregonus lavaretus
- multispinatus Pravdin, 1948 (Coregonus lavaretus), see Coregonus lavaretus
- multispine Gìnther, 1861 (Ctenopoma)
- multispinis Shcherbachev, 1980 (Bassozetus)
- multispinis Allen, 1980 (Centropyge)
- multispinis Isbrìcker, 1980 (Ancistrus)
- multispinis Isbrìcker, 1980 (Lasiancistrus)
- multispinis Stehmann, 1986 (Bathyraja)
- multispinis Holly, 1929 (Ancistrus), see Lasiancistrus multispinis
- multispinis Norman, 1937 (Raja), see Bathyraja multispinis
- multispinis Peters, 1844 (Ctenopoma), see Ctenopoma multispine
- multispinis Playfair, 1867 (Holacanthus), see Centropyge multispinis
- multispinis Regan, 1912 (Xenocara), see Ancistrus multispinis
- ?multispinnis (Banarescu, 1970) ( Xenocypristumirostris)
- multispinnis Banarescu, 1970 (Distoechodon tumirostris), see Xenocypris tumirostris multispinnis
- multispinosa Pellegrin, 1903 (Crenicichla)
- multispinosa Pellegrin, 1904 (Herotilapia)
- multispinosa Soldatov, 1922 (Krusensterniella)
- multispinosa Heemstra, 1986 (Lepidotrigla)
- multispinosus Randall, 1975 (Hemitaurichthys)
- ?multispinosus Larraáaga, 1923 (Chaetodon)
- multi-spinosus Larraáaga, 1923 (Chaetodon), see Chaetodon multispinosus
- multispinosus Gìnther, 1867 (Heros), see Herotilapia multispinosa
- multispinosus Smith, 1934 (Lepidotrigla), see Lepidotrigla multispinosa
- multispinosus Smith, 1951 (Velifer), see Metavelifer multiradiatus
- multispinosus Tokarev, 1959 (Urolophoides), see Dasyatis matsubarai
- multispinulosus Katayama, 1942 (Caelorinchus)
- multispinulosus Katayama, 1942 (Coelorhynchus), see Caelorinchus multispinulosus
- multispinulosus Okamura, 1984 (Coelorinchus), see Caelorinchus multispinulosus
- multispinus Sazonov, 1977 (Searsioides)
- multispinus Burgess & Randall, 1978 (Hemitaurichthys), see Hemitaurichthys multispinosus
- multispinus Hardenberg, 1941 (Clupeoides), see Clupeoides papuensis
- multisquama Amaoka, 1963 (Engyprosopon)
- multisquamata Inger, 1955 (Plesiops), see Plesiops multisquamatus
- multisquamata Munro, 1958 (Lomanetia), see Glossolepis multisquamatus
- multisquamata Weber & de Beaufort, 1922 (Melanotaenia), see Glossolepis multisquamatus
- multisquamata Whitley, 1936 (Lomanetia), see Glossolepis multisquamatus
- multisquamatus Allen, 1980 (Glossolepis)
- multisquamatus Rao, 1971 (Incara)
- multisquamatus de Beaufort, 1912 (Sicyopus)
- multisquamatus Inger, 1955 (Plesiops)
- multisquamatus Allen, 1987 (Pseudoplesiops)
- multisquamea Fedorov & Foroshchuk, 1988 (Psettina)
- ?multisquamus Wu & Ni, 1986 ( Stiphodonelegans)
- multisquamus Marchal, 1961 (Paracubiceps), see Ariomma melanum
- multistriatus Nielsen & Qu©ro, 1991 (Neobythites)
- multistriatus Bath, 1992 (Praealticus)
- multistriatus Maul, 1948 (Diplospinus)
- multistriatus (Feroxodon)
- multistriatus Kotthaus, 1977 (Trichonotops), see Trichonotus nikii
- multistriatus Richardson (ex Kaup), 1854 (Anchisomus), see Feroxodon multistriatus
- multitaeniata (Cyprinus), see Cyprinus carpio
- multitaeniata Pellegrin & Chevey, 1936 (Cyprinus carpio var. ), see Cyprinus carpio
- multitaeniatus Cuvier (ex Ehrenberg), 1828 (Apogon)
- multitaeniatus De Vos, 1986 (Schilbe)
- multitaeniatus Pellegrin, 1913 (Eutropius), see Schilbe multitaeniatus
- multitentaculum Briggs, 1951 (Cotylis), see Gobiesox multitentaculus
- multitentaculus Briggs, 1955 (Gobiesox)
- multivalvulus Nakashima, 1941 (Electrophorus), see Electrophorus electricus
- multivittatum Macleay, 1878 (Diagramma), see Plectorhinchus multivittatus
- multivittatus Masuda & Allen, 1993 (Plectorhinchus)
- ?mummychog Walbaum, 1792 (Cyprinus)
- munda McDowall, 1978 (Galaxiella)
- munda Paxton et al., 1989 (Kuhlia)
- munda Gill, 1863 (Urotrygon)
- munda De Vis, 1884 (Herops), see Kuhlia munda
- munda Eschmeyer, Editor, 1998 (Urolophus), see Urotrygon munda
- mundeola Nelson & Sonoda, 1987 (Anchoa)
- mundeoloides Whitehead et al., 1988 (Anchoa)
- mundeoloides Breder, 1928 (Anchovia), see Anchoa mundeoloides
- mundeolus Gilbert & Pierson, 1898 (Stolephorus), see Anchoa mundeola
- ?mundulus Johnson, 1890 (Anthias)
- mundus Parenti, 1984 (Orestias)
- mundus Gill, 1863 (Dactylagnus)
- mundus Gill, 1863 (Urotrygon), see Urotrygon munda
- mundus Jordan & Starks, 1898 (Oligoplites), see Oligoplites altus
- munense Rainboth, 1996 (Epalzeorhynchos)
- munensis Smith, 1934 (Labeo), see Epalzeorhynchos munense
- mungoensis Trewavas, 1974 (Barbus)
- mungo-park Lacep¨de, 1802 (Balistes), see Melichthys niger
- mungopark Lacep¨de, 1802 (Balistes), see Melichthys niger
- ?munificus Gibbs, 1968 (Photonectes)
- munitus Suttkus & Taylor, 1965 (Noturus)
- ?munizi Vergara R., 1978 (Gobionellus)
- munkiana Notarbartolo-di-Sciara, 1987 (Mobula)
- ?munnozius (Larraáaga, 1923) (Tetraodon)
- munnozius Larraáaga, 1923 (Tetrodon), see Tetraodon munnozius
- Munrogobius Whitley, 1951 (Gobiinae), see Gobiopterus
- munroi Crowley & Ivantsoff, 1988 (Craterocephalus)
- munroi Last & Edgar, 1987 (Crapatalus)
- munroi Collette & Russo, 1980 (Scomberomorus)
- munroi Eschmeyer, 1997 (Zebrias)
- munroi Whitley, 1966 (Strabozebrias), see Zebrias munroi
- munsing (Carcharias)
- munsing Bleeker, 1849 (Prionodon), see Carcharias munsing
- munumum Montrouzier, 1857 (Balistes), see Canthidermis maculatus
- munzingeri Kossmann & R¤uber, 1877 (Carcharias), see Negaprion acutidens
- ?mupa Rafinesque, 1810 (Sparus)
- Mupus Cocco, 1840 (Centrolophidae), see Schedophilus
- mura Schaefer, 1997 (Otocinclus)
- Muraena Linnaeus, 1758 (Muraenidae)
- muraena Jordan & Evermann, 1887 (Callechelys)
- muraena Gill, 1884 (Lycenchelys)
- ?muraena Kaup, 1856 (Syngnathus)
- ?muraena Bloch, 1779 (Salmo)
- muraena Bloch & Schneider, 1801 (Gymnothorax), see Muraena helena
- muraena Collett, 1878 (Lycodes), see Lycenchelys muraena
- Muraenesocidae (Anguilliformes)
- Muraenesox McClelland, 1844 (Muraenesocidae)
- Muraenichthys Bleeker, 1853 (Myrophinae)
- Muraenidae (Anguilliformes)
- muraeniformis Lim et al., 1990 (Pangio), see Pangio shelfordii
- muraeniformis de Beaufort, 1933 (Acanthophthalmus), see Pangio shelfordii
- muraeniformis de Beaufort, 1933 (Cobitophis), see Pangio shelfordii
- Muraenoblenna Lacep¨de (ex Commerson), 1803 (Myxininae), see Myxine
- Muraenoclinus Smith, 1946 (Clinidae)
- ?muraenoides Zouiev, 1779 (Blennius)
- ?muraenoides Valenciennes, 1839 (Gunnellus), see Blennius muraenoides
- Muraenoides Lacep¨de, 1800 (Pholidae), see Pholis
- Muraenolepididae (Gadiformes)
- Muraenolepis Gìnther, 1880 (Muraenolepididae)
- muraenolepis Paxton et al., 1989 (Ophidion)
- muraenolepis Gìnther, 1880 (Ophidium), see Ophidion muraenolepis
- muraenolepis Vaillant, 1888 (Sirembo), see Benthocometes robustus
- Muraenophis Lacep¨de, 1803 (Muraenidae), see Muraena
- Muraenopsis Lesueur in Kaup, 1856 (Ophichthinae), see Ophichthus
- Muraenosaurus Osãrio, 1909 (Nettastomatidae), see Nettastoma
- muraenula Wulff, 1765 (Cyprinus), see Coregonus albula
- murakoze Coenen, Snoeks & Thys van den Audenaerde, 1984 (Haplochromis), see Haplochromis adolphifrederici
- muralis Hoese & Larson, 1994 (Valenciennea)
- muralis Valenciennes (ex Guoy & Gaimard), 1837 (Eleotris), see Valenciennea muralis
- Murasoius Matsubara, 1943 (Sebastinae), see Sebastes
- murdjan Greenfield, 1965 (Myripristis)
- murdjan Forssk¥l, 1775 (Sciaena), see Myripristis murdjan
- Murenophis Cuvier, 1798 (Muraenidae), see Muraena
- muresia J¡szfalusi, 1951 (Gobio gobio), see Gobio gobio
- murica Natterer, 1855 (Doras), see Pterodoras granulosus
- muricata Cuvier, 1829 (Pterois), see Pterois miles
- muricatum Smith, 1956 (Bolbometopon)
- muricatum (Diodon)
- muricatus (Acipenser)
- ?muricatus Shaw, 1804 (Lophius)
- muricatus (Pseudoscarus), see Bolbometopon muricatum
- muricatus Rafinesque, 1820 (Accipenser), see Acipenser muricatus
- muricatus Valenciennes, 1840 (Scarus), see Bolbometopon muricatum
- muriei Miller & Smith, 1981 (Chasmistes)
- muriei (Gosse, 1986) (Microctenopoma)
- muriei Boulenger, 1906 (Anabas), see Microctenopoma muriei
- muriei Burgess, 1989 (Rhamdia guatemalensis), see Rhamdia quelen
- muriei Gosse, 1986 (Ctenopoma), see Microctenopoma muriei
- muriei Hubbs, 1935 (Rhamdia guatemalensis), see Rhamdia quelen
- murielae Mobray, 1928 (Prionotus)
- ?murieli Matallanas, 1984 (Paraliparis)
- murieli Allen [W. R.], 1942 (Curimata), see Curimata vittata
- murieli Fern¡ndez-Y©pez, 1948 (Allenina), see Curimata vittata
- murieli Mobray, 1928 (Prionotus), see Prionotus murielae
- murinus Nijssen & Isbrìcker, 1987 (Spectracanthicus)
- murinus Springer, 1973 (Galeus)
- murinus Collett, 1904 (Pristiurus), see Galeus murinus
- murius Burgess, 1989 (Eutropiichthys)
- murius Hamilton, 1822 (Pimelodus), see Eutropiichthys murius
- murmanica Tikhonov, 1941 (Clupea harengus harengus nat. ), see Clupea harengus
- Murmille Setna & Sarangdhar (ex Gistel), 1946 (Triakinae), see Mustelus
- muroadsi Gushiken, 1984 (Decapterus)
- muro-adsi Temminck & Schlegel, 1844 (Caranx), see Decapterus muroadsi
- muroadsi Temminck & Schlegel, 1844 (Caranx), see Decapterus muroadsi
- muronis Okamura, 1984 (Parapercis)
- muronis Tanaka, 1918 (Neopercis), see Parapercis muronis
- murphyi Nichols, 1920 (Trachurus)
- murrayensis De Vis, 1885 (Pseudojulis), see Halichoeres margaritaceus
- murrayi Gìnther, 1878 (Ipnops)
- murrayi Gìnther, 1878 (Coryphaenoides)
- murrayi Norman, 1939 (Odontomacrurus)
- murrayi Gìnther, 1887 (Melanocetus)
- murrayi Krefft, 1973 (Conocara)
- murrayi Gìnther, 1888 (Triglops)
- murrayi Stehmann, 1986 (Bathyraja)
- murrayi Gìnther, 1880 (Raja), see Bathyraja murrayi
- murrayi Gìnther, 1883 (Carcharias), see Glyphis gangeticus
- murrayi Gìnther, 1887 (Liocetus), see Melanocetus murrayi
- murrayi Gìnther, 1887 (Lyocetus), see Melanocetus murrayi
- murrayi Gìnther, 1888 (Inglops), see Triglops murrayi
- murrayi Koefoed, 1927 (Alepocephalus), see Conocara murrayi
- murrayi Leigh-Sharpe, 1924 (Etaraia), see Bathyraja murrayi
- murrayi Regan, 1903 (Chirolophius), see Lophiodes naresi
- murrayi Regan, 1909 (Cirrhites), see Cirrhitichthys oxycephalus
- Murrayia Castelnau, 1872 (Percichthyinae), see Macquaria
- murray-stuarti Chaudhuri, 1919 (Amblyceps), see Amblyceps mangois
- murraystuarti Burgess, 1989 (Amblyceps), see Amblyceps mangois
- murraystuarti Chaudhuri, 1919 (Amblyceps), see Amblyceps mangois
- mursa Kessler, 1877 (Barbus)
- mursa Gìldenst¤dt, 1772 (Cyprinus), see Barbus mursa
- mursoides Kessler, 1877 (Barbus), see Barbus mursa
- murta Kottelat, 1997 (Salvelinus)
- mus Smith, 1946 (Fucomimus)
- ?mus Lacep¨de, 1800 (Uranoscopus)
- mus Gilchrist & Thompson, 1908 (Clinus), see Fucomimus mus
- mus Penrith, 1969 (Pavoclinus), see Fucomimus mus
- mus Smith, 1956 (Callyodon), see Scarus tricolor
- mus Smith, 1986 (Fuscomimus), see Fucomimus mus
- musaica Royero, 1992 (Tatia)
- muscarum Jordan & Evermann, 1896 (Rimicola)
- muscarum Hoese, 1986 (Pleurosicya)
- muscarum Gìnther, 1867 (Atherina stercus), see Craterocephalus stercusmuscarum
- muscarum Jordan & Seale, 1906 (Rhinogobius), see Pleurosicya muscarum
- muscarum Meek & Pierson, 1895 (Gobiesox), see Rimicola muscarum
- muscarum Valenciennes, 1831 (Holocentrum stercus), see Neoniphon argenteus
- muscarus Snyder, 1908 (Salarias), see Blenniella periophthalmus
- muscatensis Krupp, 1983 ( Cyprinionmicrophthalmum)
- muscatensis Regan, 1905 (Callionymus)
- muscatensis Boulenger, 1888 (Opistognathus)
- muscatensis Boulenger, 1888 (Opisthognathus), see Opistognathus muscatensis
- muscatensis Boulenger, 1888 (Scaphiodon), see Cyprinion microphthalmum muscatensis
- muscosus Ogilby, 1907 (Tathicarpus), see Tathicarpus butleri
- ?musculus Lacep¨de, 1802 (Cyclopterus)
- musculus Mìller & Troschel, 1849 (Pimelodus), see Rhamdia quelen
- museibritannici ( Antennariuscommersonii)
- musgravei Whitley, 1961 (Periophthalmus), see Periophthalmus kalolo
- musica Girard, 1855 (Alosa), see Sardinops sagax
- musica Whitehead, 1985 (Sardinops sagax), see Sardinops sagax
- musignani Costa, 1840 (Echeneis), see Remora osteochir
- ?musiha Hamilton, 1822 (Cyprinus)
- musilae Jordan & Seale, 1906 (Alticus), see Entomacrodus thalassinus
- muskoka Meek, 1899 (Notropis), see Notropis heterolepis
- musmarinus (Raja)
- musorstom del Cerro & Lloris, 1997 (Lepidotrigla)
- mussullah Talwar & Jhingran, 1991 (Tor)
- mussullah (Puntius), see Tor mussullah
- mussullah Bleeker, 1859 (Hypselobarbus), see Tor mussullah
- mussullah Sykes, 1839 (Barbus), see Tor mussullah
- musta-siika Pravdin, 1948 (Coregonus lavaretus mediospinatus nat. ), see Coregonus lavaretus
- mustasiika Pravdin, 1948 (Coregonus lavaretus mediospinatus nat. ), see Coregonus lavaretus
- mustasiiska Pravdin, 1948 (Coregonus lavaretus mediospinatus nat. ), see Coregonus lavaretus
- mustax Colombe & Allgayer, 1985 (Neolamprologus)
- mustax Poll, 1978 (Lamprologus), see Neolamprologus mustax
- mustea Rafinesque, 1810 (Blennius), see Phycis phycis
- Mustel Oken (ex Cuvier), 1817 (Lotidae), see Gaidropsarus
- mustela Svetovidov, 1973 (Ciliata)
- mustela (Petromyzon)
- mustela Cuvier, 1829 (Motella), see Ciliata mustela
- mustela Jarocki, 1822 (Emissola), see Mustelus mustelus
- mustela Lacep¨de, 1800 (Blennius), see Clinus superciliosus
- mustela Linnaeus, 1758 (Gadus), see Ciliata mustela
- mustela Oken (ex Cuvier), 1817 (Mustel), see Ciliata mustela
- mustela Setna & Sarangdhar (ex Gistel), 1946 (Murmille), see Mustelus mustelus
- mustelaris Linnaeus, 1758 (Blennius), see Clinus superciliosus
- musteliceps Castle, 1995 (Gnathophis)
- musteliceps Alcock, 1894 (Congromuraena), see Gnathophis musteliceps
- Mustelichthys (Anthiinae)
- mustelinus Bleeker, 1858 (Heptapterus)
- ?mustelinus Walbaum, 1792 (Gadus)
- mustelinus Valenciennes, 1836 (Pimelodus), see Heptapterus mustelinus
- ?mustellaris Gronow, 1854 (Blennius)
- mustellaris Rafinesque, 1810 (Gaidropsaurus), see Gaidropsarus mediterraneus
- Mustellus Fischer von Waldheim, 1813 (Triakinae), see Mustelus
- Mustellus Risso, 1827 (Triakinae), see Mustelus
- mustellus Rafinesque, 1810 (Onus), see Phycis phycis
- Mustelus Linck, 1790 (Triakinae)
- mustelus Linck, 1790 (Mustelus)
- mustelus Gistel, 1848 (Myrmillo), see Mustelus mustelus
- mustelus Leach, 1818 (Galeus), see Mustelus mustelus
- mustelus Linnaeus, 1758 (Squalus), see Mustelus mustelus
- musumbi Boulenger, 1910 (Barbus)
- musume Jordan & Snyder, 1904 (Julis), see Coris picta
- mutabilis Costa & G©ry, 1994 (Hyphessobrycon)
- mutabilis (Crossocheilus)
- ?mutabilis Cocco, 1833 (Clinus)
- mutabilis Gronow, 1854 (Callyodon), see Scarus quoyi
- mutabilis Lin, 1933 (Epalzeorhynchus), see Crossocheilus mutabilis
- mutabilis Lowe, 1838 (Scarus), see Sparisoma cretense
- mutabilis Mai, 1978 (Epalzeorhynchus), see Crossocheilus mutabilis
- mutabilis Wu et al., 1977 (Rectoris), see Crossocheilus mutabilis
- mutabilis Wu, 1939 (Parasinilabeo), see Crossocheilus mutabilis
- mutator Eigenmann, 1909 (Astyanax)
- mutatum Vaillant, 1873 (Boleosoma), see Etheostoma nigrum
- muticellus Bonaparte, 1837 (Leuciscus), see Leuciscus souffia
- muticus Gill, 1862 (Eupleurogrammus)
- muticus Gilbert, 1896 (Lethotremus)
- ?muticus Larraáaga, 1923 (Silurus)
- muticus Gray, 1831 (Trichiurus), see Eupleurogrammus muticus
- mutilus Goode & Bean, 1896 (Lophiodes)
- mutilus Alcock, 1894 (Lophius), see Lophiodes mutilus
- mutisii Humboldt, 1805 (Eremophilus)
- mutisii Humboldt, 1805 (Thrichomycterus), see Eremophilus mutisii
- mutombotombo Pellegrin, 1936 (Mastacembelus), see Caecomastacembelus frenatus
- mutsindoziensis Taverne & De Vos, 1998 (Clariallabes)
- ?mutsuensis Shiogaki, 1985 (Alectrias)
- muyscorum Steindachner, 1901 (Leporinus)
- muzaffarpurensis (Barbus), see Puntius vittatus
- muzaffarpurensis Srivastava, Verma & Sharma, 1977 (Puntius), see Puntius vittatus
- muzodurus (Trigla)
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