Mexico
Checklist of Endemic Freshwater Fish Species
This list of freshwater fish species found exclusively in Mexico is based on the taxonomy used in Eschmeyer's Catalog of Fishes (2023). For further details on possible inaccuracies in the list see Sources & Caveats.
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds) 2023 Catalog of Fishes: Genera, Species, References. Version downloaded 9 February 2023 https://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp
The current version can be accessed here
+ = species added to the Catalog of Fishes after 9 Februrary 2023
Atherinella ammophila
(Atheriniformes Atherinopsidae) La Palma
Silverside
Atherinella balsana
(Atheriniformes Atherinopsidae) Balsas Silverside
Atherinella callida
(Atheriniformes Atherinopsidae) Cunning
Silverside
Atherinella crystallina
(Atheriniformes Atherinopsidae) Blackfin Silverside
Atherinella elegans
(Atheriniformes Atherinopsidae) Fuerte Silverside
Atherinella lisa
(Atheriniformes Atherinopsidae) Naked Silverside
Atherinella marvelae
(Atheriniformes Atherinopsidae) Eyipantla
Silverside
Atherinella pellosemeion
(Atheriniformes Atherinopsidae) Mancuernas
Silverside
Atherinella sallei
(Atheriniformes Atherinopsidae) Large-eye
Silverside
Atherinella schultzi
(Atheriniformes Atherinopsidae) Chimalapa
Silverside
Chirostoma aculeatum
(Atheriniformes Atherinopsidae) Scowling Silverside
Chirostoma arge
(Atheriniformes Atherinopsidae) Largetooth
Silverside
Chirostoma attenuatum
(Atheriniformes Atherinopsidae) Slender
Silverside
Chirostoma bartoni
(Atheriniformes Atherinopsidae) Alberca
Silverside
Chirostoma breve
(Atheriniformes Atherinopsidae)
Chirostoma chapalae
(Atheriniformes Atherinopsidae) Smalltooth
Silverside
Chirostoma charari
(Atheriniformes Atherinopsidae) Least Silverside
Chirostoma compressum
(Atheriniformes Atherinopsidae)
Chirostoma contrerasi
(Atheriniformes Atherinopsidae) Ajijic Silverside
Chirostoma copandaro
(Atheriniformes Atherinopsidae)
Chirostoma estor
(Atheriniformes Atherinopsidae) Pike Silverside
Chirostoma humboldtianum
(Atheriniformes Atherinopsidae) Shortfin
Silverside
Chirostoma jordani
(Atheriniformes Atherinopsidae) Mesa Silverside
Chirostoma labarcae
(Atheriniformes Atherinopsidae) Sharpnose
Silverside
Chirostoma melanoccus
(Atheriniformes Atherinopsidae) Blunthead
Silverside
Chirostoma mezquital
(Atheriniformes Atherinopsidae) Mezquital
Silverside
Chirostoma reseratum
(Atheriniformes Atherinopsidae)
Chirostoma riojai
(Atheriniformes Atherinopsidae) Toluca Silverside
Chirostoma sphyraena
(Atheriniformes Atherinopsidae) Bigmouth
Silverside
Chirostoma zirahuen
(Atheriniformes Atherinopsidae) Zirahuen
Silverside
Menidia colei (Atheriniformes Atherinopsidae)
Golden Silverside
Poblana alchichica
(Atheriniformes Atherinopsidae) Alchichica
Silverside
Poblana ferdebueni
(Atheriniformes Atherinopsidae) Chignahuapan Silverside
Poblana letholepis
(Atheriniformes Atherinopsidae) La Preciosa
Silverside
Poblana squamata
(Atheriniformes Atherinopsidae) Quechulac
Silverside
Astyanax acatlanensis
(Characiformes Characidae) Acatlan Tetra
Astyanax altior
(Characiformes Characidae) Yucatan Tetra
Astyanax caballeroi
(Characiformes Characidae) Catemaco Tetra
Astyanax finitimus
(Characiformes Characidae) Veracruz Tetra
Astyanax jordani
(Characiformes Characidae) Blind Cave Tetra
Astyanax mexicanus
(Characiformes Characidae) Mexican Tetra
Astyanax ocotal
(Characiformes Characidae) Lacandon Tetra
Astyanax rioverde
(Characiformes Characidae) Rioverde Tetra
Astyanax salvatoris
(Characiformes Characidae) Tamazulapan Tetra
Astyanax tamiahua
(Characiformes Characidae) Tamiahua Tetra
Astyanax tehuacanensis
(Characiformes Characidae) Tehuacan Tetra
Amphilophus istlanus
(Cichliformes Cichlidae) Redside Cichlid
Herichthys bartoni
(Cichliformes Cichlidae) Barton's Cichlid
Herichthys carpintis
(Cichliformes Cichlidae) Lowland Cichlid
Herichthys deppii
(Cichliformes Cichlidae) Nautla Cichlid
Herichthys labridens
(Cichliformes Cichlidae) Curve-bar Cichlid
Herichthys minckleyi
(Cichliformes Cichlidae) Cuatro Cienegas
Cichlid
Herichthys pame
(Cichliformes Cichlidae) White Labridens
Herichthys pantostictus
(Cichliformes Cichlidae) Chairel Cichlid
Herichthys steindachneri
(Cichliformes Cichlidae) Slender Cichlid
Herichthys tamasopoensis
(Cichliformes Cichlidae) Tamasopo Cichlid
Herichthys tepehua
(Cichliformes Cichlidae) Soto la Marina Cichlid
Maskaheros regani
(Cichliformes Cichlidae) Almoloya Cichlid
Mayaheros aguadae
(Cichliformes Cichlidae)
Mayaheros amarus
(Cichliformes Cichlidae)
Mayaheros beani
(Cichliformes Cichlidae) Sinaloa Cichlid
Mayaheros ericymba
(Cichliformes Cichlidae)
Paraneetroplus bulleri
(Cichliformes Cichlidae) Sarabia Cichlid
Paraneetroplus gibbiceps
(Cichliformes Cichlidae) Teapa Cichlid
Paraneetroplus nebulifer
(Cichliformes Cichlidae) Papaloapan Cichlid
Paraneetroplus omonti
(Cichliformes Cichlidae)
Rheoheros coeruleus
(Cichliformes Cichlidae) Blue Theraps
Rocio gemmata (Cichliformes Cichlidae)
Leona Vicario Cichlid
Rocio ocotal (Cichliformes Cichlidae)
Ocotal Cichlid
Thorichthys callolepis
(Cichliformes Cichlidae) San Domingo Cichlid
Thorichthys maculipinnis
(Cichliformes Cichlidae) Spotcheek Cichlid
Thorichthys panchovillai
(Cichliformes Cichlidae)
Thorichthys socolofi
(Cichliformes Cichlidae) Chiapas Cichlid
Vieja breidohri
(Cichliformes Cichlidae) Angostura Cichlid
Vieja fenestrata
(Cichliformes Cichlidae) Blackstripe Cichlid
Vieja zonata (Cichliformes Cichlidae)
Oaxaca Cichlid
Dorosoma smithi
(Clupeiformes Dorosomatidae) Pacific Gizzard
Shad
Catostomus bernardini
(Cypriniformes Catostomidae) Yaqui Sucker
Catostomus cahita
(Cypriniformes Catostomidae) Cahita Sucker
Catostomus conchos
(Cypriniformes Catostomidae) Conchos Sucker
Catostomus leopoldi
(Cypriniformes Catostomidae) Bavispe Sucker
Catostomus wigginsi
(Cypriniformes Catostomidae) Opata Sucker
Ictiobus labiosus
(Cypriniformes Catostomidae) Fleshylip Sucker
Moxostoma albidum
(Cypriniformes Catostomidae) Longlip Jumprock
Moxostoma mascotae
(Cypriniformes Catostomidae) Mascota Jumprock
Moxostoma milleri
(Cypriniformes Catostomidae)
Pantosteus nebuliferus
(Cypriniformes Catostomidae) Nazas Sucker
Algansea amecae
(Cypriniformes Leuciscidae) Ameca Chub
Algansea aphanea
(Cypriniformes Leuciscidae) Riffle Chub
Algansea avia (Cypriniformes Leuciscidae)
Remote Chub
Algansea barbata
(Cypriniformes Leuciscidae) Lerma Chub
Algansea lacustris
(Cypriniformes Leuciscidae) Patzcuaro Chub
Algansea monticola
(Cypriniformes Leuciscidae) Mountain Chub
Algansea popoche
(Cypriniformes Leuciscidae) Popoche Chub
Algansea tincella
(Cypriniformes Leuciscidae) Spottail Chub
Aztecula sallaei
(Cypriniformes Leuciscidae) Aztec Chub
Codoma ornata (Cypriniformes Leuciscidae)
Ornate Shiner
Cyprinella
alvarezdelvillari (Cypriniformes
Leuciscidae) Tepehuan Shiner
Cyprinella bocagrande
(Cypriniformes Leuciscidae) Largemouth Shiner
Cyprinella garmani
(Cypriniformes Leuciscidae) Gibbous Shiner
Cyprinella panarcys
(Cypriniformes Leuciscidae) Cochos Shiner
Cyprinella rutila
(Cypriniformes Leuciscidae) Mexican Red Shiner
Cyprinella xanthicara
(Cypriniformes Leuciscidae) Cuatro Cienegas
Shiner
Dionda melanops
(Cypriniformes Leuciscidae) Spotted Minnow
Evarra bustamantei
(Cypriniformes Leuciscidae) Mexican Chub
Evarra eigenmanni
(Cypriniformes Leuciscidae) Plateau Chub
Evarra tlahuacensis
(Cypriniformes Leuciscidae) Endorheic Chub
Gila brevicauda
(Cypriniformes Leuciscidae) Shorttail Chub
Gila conspersa
(Cypriniformes Leuciscidae) Nazas Chub
Gila eremica (Cypriniformes Leuciscidae)
Desert Chub
Gila minacae (Cypriniformes Leuciscidae)
Mexican Roundtail Chub
Gila modesta (Cypriniformes Leuciscidae)
Salinas Chub
Gila pulchra (Cypriniformes Leuciscidae)
Conchos Chub
Notropis aguirrepequenoi
(Cypriniformes Leuciscidae) Soto la Marina
Shiner
Notropis amecae
(Cypriniformes Leuciscidae) Ameca Shiner
Notropis aulidion
(Cypriniformes Leuciscidae) Durango Shiner
Notropis boucardi
(Cypriniformes Leuciscidae) Balsas Shiner
Notropis calabazas
(Cypriniformes Leuciscidae) Calabazas Shiner
Notropis calientis
(Cypriniformes Leuciscidae) Yellow Shiner
Notropis cumingii
(Cypriniformes Leuciscidae) Atoyac Chub
Notropis grandis
(Cypriniformes Leuciscidae) Zacapu Shiner
Notropis imeldae
(Cypriniformes Leuciscidae) Rio Verde Shiner
Notropis marhabatiensis
(Cypriniformes Leuciscidae) Maravatio Shiner
Notropis moralesi
(Cypriniformes Leuciscidae) Papaloapan Chub
Notropis nazas
(Cypriniformes Leuciscidae) Nazas Shiner
Notropis saladonis
(Cypriniformes Leuciscidae) Salado Shiner
Notropis tropicus
(Cypriniformes Leuciscidae) Pygmy Shiner
Stypodon signifer
(Cypriniformes Leuciscidae) Stumptooth Minnow
Tampichthys catostomops
(Cypriniformes Leuciscidae) Pánuco Minnow
Tampichthys dichroma
(Cypriniformes Leuciscidae) Bicolor Minnow
Tampichthys erimyzonops
(Cypriniformes Leuciscidae) Chubsucker Minnow
Tampichthys ipni
(Cypriniformes Leuciscidae) Lantern Minnow
Tampichthys mandibularis
(Cypriniformes Leuciscidae) Flatjaw Minnow
Tampichthys rasconis
(Cypriniformes Leuciscidae) Blackstripe Minnow
Yuriria alta (Cypriniformes Leuciscidae)
Jalisco Chub
Yuriria amatlana
(Cypriniformes Leuciscidae) Amatlan Chub
Yuriria chapalae
(Cypriniformes Leuciscidae) Chapala Chub
Cualac tessellatus
(Cyprinodontiformes Cyprinodontidae) Checkered Pupfish
Cyprinodon albivelis
(Cyprinodontiformes Cyprinodontidae) Whitefin Pupfish
Cyprinodon alvarezi
(Cyprinodontiformes Cyprinodontidae) Potosi Pupfish
Cyprinodon atrorus
(Cyprinodontiformes Cyprinodontidae) Bolson Pupfish
Cyprinodon beltrani
(Cyprinodontiformes Cyprinodontidae) Blackfin Pupfish
Cyprinodon bifasciatus
(Cyprinodontiformes Cyprinodontidae) Cuatro Cienegas Pupfish
Cyprinodon bobmilleri
(Cyprinodontiformes Cyprinodontidae) San Ignacio Pupfish
Cyprinodon ceciliae
(Cyprinodontiformes Cyprinodontidae) Villa Lopez Pupfish
Cyprinodon esconditus
(Cyprinodontiformes Cyprinodontidae) Hidden Pupfish
Cyprinodon fontinalis
(Cyprinodontiformes Cyprinodontidae) Carbonera Pupfish
Cyprinodon inmemoriam
(Cyprinodontiformes Cyprinodontidae) Charco Azul Pupfish
Cyprinodon julimes
(Cyprinodontiformes Cyprinodontidae) Julimes Pupfish
Cyprinodon labiosus
(Cyprinodontiformes Cyprinodontidae) Thicklip Pupfish
Cyprinodon latifasciatus
(Cyprinodontiformes Cyprinodontidae) Parras Pupfish
Cyprinodon longidorsalis
(Cyprinodontiformes Cyprinodontidae) La Palma Pupfish
Cyprinodon macrolepis
(Cyprinodontiformes Cyprinodontidae) Largescale Pupfish
Cyprinodon maya
(Cyprinodontiformes Cyprinodontidae) Maya Pupfish
Cyprinodon meeki
(Cyprinodontiformes Cyprinodontidae) Mezquital Pupfish
Cyprinodon nazas
(Cyprinodontiformes Cyprinodontidae) Nazas Pupfish
Cyprinodon pachycephalus
(Cyprinodontiformes Cyprinodontidae) Bighead Pupfish
Cyprinodon pisteri
(Cyprinodontiformes Cyprinodontidae) Guzman Pupfish
Cyprinodon salvadori
(Cyprinodontiformes Cyprinodontidae) Bocochi Pupfish
Cyprinodon simus
(Cyprinodontiformes Cyprinodontidae) Boxer Pupfish
Cyprinodon suavium
(Cyprinodontiformes Cyprinodontidae) Kissing Pupfish
Cyprinodon verecundus
(Cyprinodontiformes Cyprinodontidae) Largefin Pupfish
Cyprinodon veronicae
(Cyprinodontiformes Cyprinodontidae) Charco Palma Pupfish
Megupsilon aporus
(Cyprinodontiformes Cyprinodontidae) Catarina Pupfish
Fundulus grandissimus
(Cyprinodontiformes Fundulidae) Giant
Killifish
Fundulus herminiamatildarum
(Cyprinodontiformes Fundulidae)
Fundulus lima (Cyprinodontiformes Fundulidae) Baja California
Killifish
Fundulus philpisteri
(Cyprinodontiformes Fundulidae) Conservationist
Killifish
Lucania interioris
(Cyprinodontiformes Fundulidae) Cuatro
Cienegas Killifish
Allodontichthys hubbsi
(Cyprinodontiformes Goodeidae) Whitepatched
Splitfin
Allodontichthys polylepis
(Cyprinodontiformes Goodeidae) Finescale
Splitfin
Allodontichthys tamazulae
(Cyprinodontiformes Goodeidae) Peppered
Splitfin
Allodontichthys zonistius
(Cyprinodontiformes Goodeidae) Bandfin
Splitfin
Alloophorus robustus
(Cyprinodontiformes Goodeidae) Bulldog
Goodeid
Allotoca catarinae
(Cyprinodontiformes Goodeidae) Catarina
Allotoca
Allotoca diazi
(Cyprinodontiformes Goodeidae) Patzcuaro
Allotoca
Allotoca dugesii
(Cyprinodontiformes Goodeidae) Opal
Allotoca
Allotoca goslinei
(Cyprinodontiformes Goodeidae) Banded
Allotoca
Allotoca maculata
(Cyprinodontiformes Goodeidae) Blackspot
Allotoca
Allotoca meeki
(Cyprinodontiformes Goodeidae) Zirahuen
Allotoca
Allotoca regalis
(Cyprinodontiformes Goodeidae) Balsas
Allotoca
Allotoca zacapuensis
(Cyprinodontiformes Goodeidae) Zacapu
Allotoca
Ameca splendens
(Cyprinodontiformes Goodeidae) Butterfly
Splitfin
Ataeniobius toweri
(Cyprinodontiformes Goodeidae) Bluetail
Splitfin
Chapalichthys encaustus
(Cyprinodontiformes Goodeidae) Barred
Splitfin
Chapalichthys pardalis
(Cyprinodontiformes Goodeidae) Polka-dot
Splitfin
Characodon audax
(Cyprinodontiformes Goodeidae) Bold
Characodon
Characodon garmani
(Cyprinodontiformes Goodeidae) Parras
Characodon
Characodon lateralis
(Cyprinodontiformes Goodeidae) Rainbow
Characodon
Girardinichthys ireneae
(Cyprinodontiformes Goodeidae) Zacapu
Splitfin
Girardinichthys
multiradiatus (Cyprinodontiformes
Goodeidae) Darkedged Splitfin
Girardinichthys turneri
(Cyprinodontiformes Goodeidae) Highland
Splitfin
Girardinichthys viviparus
(Cyprinodontiformes Goodeidae) Chapultepec
Splitfin
Goodea atripinnis
(Cyprinodontiformes Goodeidae) Blackfin
Goodea
Ilyodon cortesae
(Cyprinodontiformes Goodeidae) Freckled
Splitfin
Ilyodon furcidens
(Cyprinodontiformes Goodeidae) Goldbreast
Splitfin
Ilyodon lennoni
(Cyprinodontiformes Goodeidae) Chacambero
Splitfin
Ilyodon whitei
(Cyprinodontiformes Goodeidae) Balsas
Splitfin
Neotoca bilineata
(Cyprinodontiformes Goodeidae) Twoline
Skiffia
Skiffia francesae
(Cyprinodontiformes Goodeidae) Golden
Skiffia
Skiffia lermae
(Cyprinodontiformes Goodeidae) Olive
Skiffia
Skiffia multipunctata
(Cyprinodontiformes Goodeidae) Spotted
Skiffia
Xenoophorus captivus
(Cyprinodontiformes Goodeidae) Relict
Splitfin
Xenotaenia resolanae
(Cyprinodontiformes Goodeidae) Leopard
Splitfin
Xenotoca doadrioi
(Cyprinodontiformes Goodeidae) San
Marcos Redtail Splitfin
Xenotoca eiseni
(Cyprinodontiformes Goodeidae) Redtail
Splitfin
Xenotoca lyonsi
(Cyprinodontiformes Goodeidae) Tamazula
Redtail Splitfin
Xenotoca melanosoma
(Cyprinodontiformes Goodeidae) Black
Splitfin
Xenotoca variata
(Cyprinodontiformes Goodeidae) Jeweled
Splitfin
Zoogoneticus purhepechus
(Cyprinodontiformes Goodeidae) Tarascan
Splitfin
Zoogoneticus quitzeoensis
(Cyprinodontiformes Goodeidae) Picote
Splitfin
Zoogoneticus tequila
(Cyprinodontiformes Goodeidae) Tequila
Splitfin
Gambusia alvarezi
(Cyprinodontiformes Poeciliidae) Yellowfin
Gambusia
Gambusia atrora
(Cyprinodontiformes Poeciliidae) Blackfin
Gambusia
Gambusia aurata
(Cyprinodontiformes Poeciliidae) Golden
Gambusia
Gambusia eurystoma
(Cyprinodontiformes Poeciliidae) Widemouth
Gambusia
Gambusia hurtadoi
(Cyprinodontiformes Poeciliidae) Crescent
Gambusia
Gambusia krumholzi
(Cyprinodontiformes Poeciliidae) Spotfin
Gambusia
Gambusia longispinis
(Cyprinodontiformes Poeciliidae) Cuatro
Cienegas Gambusia
Gambusia marshi
(Cyprinodontiformes Poeciliidae) Robust
Gambusia
Gambusia panuco
(Cyprinodontiformes Poeciliidae) Panuco
Gambusia
Gambusia quadruncus
(Cyprinodontiformes Poeciliidae) Llanos
Mosquitofish
Gambusia regani
(Cyprinodontiformes Poeciliidae) Forlón
Gambusia
Gambusia senilis
(Cyprinodontiformes Poeciliidae) Blotched
Gambusia
Gambusia vittata
(Cyprinodontiformes Poeciliidae) Gulf
Gambusia
Gambusia zarskei
(Cyprinodontiformes Poeciliidae) Conchos
Gambusia
Heterophallus echeagarayi
(Cyprinodontiformes Poeciliidae) Maya
Gambusia
Heterophallus milleri
(Cyprinodontiformes Poeciliidae) Grijalva
Gambusia
Heterophallus rachovii
(Cyprinodontiformes Poeciliidae) Coatzacoalcos
Gambusia
Poecilia catemaconis
(Cyprinodontiformes Poeciliidae) Catemaco
Molly
Poecilia chica
(Cyprinodontiformes Poeciliidae) Dwarf
Molly
Poecilia latipunctata
(Cyprinodontiformes Poeciliidae) Broadspotted
Molly
Poecilia limantouri
(Cyprinodontiformes Poeciliidae)
Poecilia maylandi
(Cyprinodontiformes Poeciliidae) Balsas
Molly
Poecilia pallida
(Cyprinodontiformes Poeciliidae)
Poecilia sulphuraria
(Cyprinodontiformes Poeciliidae) Sulphur
Molly
Poecilia thermalis
(Cyprinodontiformes Poeciliidae)
Poecilia velifera
(Cyprinodontiformes Poeciliidae) Sailfin
Molly
Poeciliopsis baenschi
(Cyprinodontiformes Poeciliidae) Golden
Livebearer
Poeciliopsis balsas
(Cyprinodontiformes Poeciliidae) Balsas
Livebearer
Poeciliopsis catemaco
(Cyprinodontiformes Poeciliidae) Catemaco
Livebearer
Poeciliopsis fasciata
(Cyprinodontiformes Poeciliidae) San
Jeronimo Livebearer
Poeciliopsis infans
(Cyprinodontiformes Poeciliidae) Lerma
Livebearer
Poeciliopsis jackschultzi
(Cyprinodontiformes Poeciliidae) Río
Concepción Topminnow
Poeciliopsis latidens
(Cyprinodontiformes Poeciliidae) Lowland
Livebearer
Poeciliopsis lucida
(Cyprinodontiformes Poeciliidae) Clearfin
Livebearer
Poeciliopsis lutzi
(Cyprinodontiformes Poeciliidae) Oaxaca
Livebearer
Poeciliopsis monacha
(Cyprinodontiformes Poeciliidae) Headwater
Livebearer
Poeciliopsis presidionis
(Cyprinodontiformes Poeciliidae) Sinaloa
Livebearer
Poeciliopsis prolifica
(Cyprinodontiformes Poeciliidae) Blackstripe
Livebearer
Poeciliopsis scarlli
(Cyprinodontiformes Poeciliidae) Michoacan
Livebearer
Poeciliopsis turneri
(Cyprinodontiformes Poeciliidae) Blackspotted
Livebearer
Poeciliopsis viriosa
(Cyprinodontiformes Poeciliidae) Chubby
Livebearer
Priapella bonita
(Cyprinodontiformes Poeciliidae) Graceful
Priapella
Priapella chamulae
(Cyprinodontiformes Poeciliidae) Chamula
Priapella
Priapella compressa
(Cyprinodontiformes Poeciliidae) Palenque
Priapella
Priapella intermedia
(Cyprinodontiformes Poeciliidae) Isthmian
Priapella
Priapella lacandonae
(Cyprinodontiformes Poeciliidae) Chiapas
Priapella
Priapella olmecae
(Cyprinodontiformes Poeciliidae) Olmec
Priapella
Pseudoxiphophorus jonesii
(Cyprinodontiformes Poeciliidae) Barred
Killifish
Pseudoxiphophorus
tuxtlaensis (Cyprinodontiformes
Poeciliidae) Tuxtlas Killifish
Xiphophorus andersi
(Cyprinodontiformes Poeciliidae) Spiketail
Platyfish
Xiphophorus birchmanni
(Cyprinodontiformes Poeciliidae) Sheepshead
Swordtail
Xiphophorus clemenciae
(Cyprinodontiformes Poeciliidae) Yellow
Swordtail
Xiphophorus continens
(Cyprinodontiformes Poeciliidae) El
Quince Swordtail
Xiphophorus cortezi
(Cyprinodontiformes Poeciliidae) Delicate
Swordtail
Xiphophorus couchianus
(Cyprinodontiformes Poeciliidae) Monterrey
Platyfish
Xiphophorus evelynae
(Cyprinodontiformes Poeciliidae) Puebla
Platyfish
Xiphophorus gordoni
(Cyprinodontiformes Poeciliidae) Northern
Platyfish
Xiphophorus kallmani
(Cyprinodontiformes Poeciliidae) Catemaco
Swordtail
Xiphophorus malinche
(Cyprinodontiformes Poeciliidae) Highland
Swordtail
Xiphophorus meyeri
(Cyprinodontiformes Poeciliidae) Marbled
Swordtail
Xiphophorus milleri
(Cyprinodontiformes Poeciliidae) Catemaco
Platyfish
Xiphophorus mixei
(Cyprinodontiformes Poeciliidae) Mixe
Swordtail
Xiphophorus montezumae
(Cyprinodontiformes Poeciliidae) Montezuma
Swordtail
Xiphophorus monticolus
(Cyprinodontiformes Poeciliidae) Southern
Mountain Swordtail
Xiphophorus multilineatus
(Cyprinodontiformes Poeciliidae) Barred
Swordtail
Xiphophorus nezahualcoyotl
(Cyprinodontiformes Poeciliidae) Northern
Mountain Swordtail
Xiphophorus nigrensis
(Cyprinodontiformes Poeciliidae) Panuco
Swordtail
Xiphophorus pygmaeus
(Cyprinodontiformes Poeciliidae) Pygmy
Swordtail
Xiphophorus variatus
(Cyprinodontiformes Poeciliidae) Variable
Platyfish
Xiphophorus xiphidium
(Cyprinodontiformes Poeciliidae) Swordtail
Platyfish
Profundulus adani
(Cyprinodontiformes Profundulidae) Papaloapan Killifish
Profundulus balsanus
(Cyprinodontiformes Profundulidae) Chiapas Killifish
Profundulus chimalapensis
(Cyprinodontiformes Profundulidae) Chimalapa Killifish
Profundulus emilioi + (Cyprinodontiformes Profundulidae) Ometepec Killifish
Profundulus mixtlanensis
(Cyprinodontiformes Profundulidae) Mixtlan Killifish
Profundulus oaxacae
(Cyprinodontiformes Profundulidae) Oaxaca Killifish
Profundulus parentiae
(Cyprinodontiformes Profundulidae) Parenti's Killifsh
Profundulus rei + (Cyprinodontiformes Profundulidae) Rei Killifish
Tlaloc hildebrandi
(Cyprinodontiformes Profundulidae) Chiapas Killifish
Millerichthys robustus
(Cyprinodontiformes Rivulidae) Mexican
Rivulus
Gobiesox fluviatilis
(Gobiesociformes Gobiesocidae) Mountain Clingfish
Gobiesox juniperoserrai
(Gobiesociformes Gobiesocidae) Peninsular
Clingfish
Gobiesox mexicanus
(Gobiesociformes Gobiesocidae) Mexican Clingfish
Caecieleotris morrisi
(Gobiiformes Eleotridae) Oaxaca Cave Sleeper
Gillichthys detrusus
(Gobiiformes Gobiidae) Delta Mudsucker
Sicydium fayae
(Gobiiformes Gobiidae) Tres Marias Goby
Typhlias pearsei
(Ophidiiformes Dinematichthyidae) Mexican Blind
Brotula
Etheostoma australe
(Perciformes Percidae) Conchos Darter
Etheostoma lugoi
(Perciformes Percidae) Tufa Darter
Etheostoma pottsii
(Perciformes Percidae) Chihuahua Darter
Etheostoma segrex
(Perciformes Percidae) Rio Salado Darter
Oncorhynchus chrysogaster
(Salmoniformes Salmonidae) Mexican Golden Trout
Cathorops liropus
(Siluriformes Ariidae) Conguito Sea Catfish
Rhamdia laluchensis
(Siluriformes Heptapteridae) La Lucha Blind
Catfish
Rhamdia macuspanensis
(Siluriformes Heptapteridae) Olmec Blind
Catfish
Rhamdia reddelli
(Siluriformes Heptapteridae) Blind Whiskered
Catfish
Rhamdia zongolicensis
(Siluriformes Heptapteridae) Zongolica Catfish
Ictalurus australis
(Siluriformes Ictaluridae) Panuco Catfish
Ictalurus balsanus
(Siluriformes Ictaluridae) Balsas Catfish
Ictalurus dugesii
(Siluriformes Ictaluridae) Lerma Catfish
Ictalurus mexicanus
(Siluriformes Ictaluridae) Rio Verde Catfish
Ictalurus ochoterenai
(Siluriformes Ictaluridae) Chapala Catfish
Prietella lundbergi
(Siluriformes Ictaluridae) Phantom Blindcat
Ophisternon infernale
(Synbranchiformes Synbranchidae) Blind Swamp Eel
Tetrapleurodon geminis
(Petromyzontiformes Petromyzontidae) Mexican Brook Lamprey
Tetrapleurodon spadiceus
(Petromyzontiformes Petromyzontidae) Chapala Lamprey