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Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Goodeidae
Subfamily: Goodeinae
Genus: Girardinichthys
Bleeker, 1860
Type species
Girardinichthys innominatus
Bleeker, 1860[1]

Girardinichthys is a genus of splitfins that are endemic to Mexico. These highly threatened fish are native to the upper Lerma and Balsas basins, as well as water systems in the Valley of Mexico. Through man-made channels G. viviparus has been able to spread to the upper Pánuco River basin.[2][3] These small fish reach up to 6.5 cm (2.6 in) in length.[4] The name of this genus honours the American herpetologist and ichthyologist Charles Girard (1822-1895).[5]


There are currently three recognized species in this genus:[4]


  1. ^ Eschmeyer, W. N.; R. Fricke & R. van der Laan (eds.). "Girardinichthys". Catalog of Fishes. California Academy of Sciences. Retrieved 19 September 2019.
  2. ^ Ceballos, G.; E.D. Pardo; L.M Estévez; H.E. Pérez, eds. (2016). Los peces dulceacuícolas de México en peligro de extinción. pp. 309–311. ISBN 978-607-16-4087-1.
  3. ^ "Girardinichthys viviparus". Goodeid Working Group. Retrieved 23 September 2018.
  4. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Girardinichthys in FishBase. August 2018 version.
  5. ^ Christopher Scharpf; Kenneth J. Lazara (26 April 2019). "Order CYPRINODONTIFORMES: Families PANTANODONTIDAE, CYPRINODONTIDAE, PROFUNDULIDAE, GOODEIDAE, FUNDULIDAE and FLUVIPHYLACIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 19 September 2019.