Chapultepec splitfin

The Chapultepec splitfin (Girardinichthys viviparus), known locally as mexcalpique, is a critically endangered species of fish in the family Goodeidae.[1] It is endemic to Mexico and was originally restricted to lakes and wetlands in the Valley of Mexico, including Lake Texcoco. Through man-made channels it was able to spread to the upper Pánuco River basin (notably Tula River and associated reservoirs). Most native populations disappeared as they were at or near Mexico City, with the waters either being reclaimed, drained, heavily polluted or infested with introduced species. Today the Chapultepec splitfin is only known to survive in three lakes (Viejo, Menor and Mayor) in the Chapultepec park of Mexico City, Lake Xochimilco, Lake Zumpango, Laguna de Tecocomulco northeast of the City where perhaps introduced, and parts of the Pánuco River basin. Most of these remaining populations are small.[4] This species was originally described as Cyprinus viviparus in 1837 by Miguel Bustamante y Septién with the type locality given as "Mexico".[5] In 1860 Pieter Bleeker raised the genus Girardinichthys with a new species Girardinichthys viviparus as its type species, this subsequently proved to be a taxonomy of Cyprinus viviparus.[6]

Chapultepec splitfin
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Goodeidae
Genus: Girardinichthys
Species:
G. viviparus
Binomial name
Girardinichthys viviparus
(Bustamante, 1837)
Synonyms[2][3]
  • Cyprinus viviparus Bustamante, 1837
  • Girardinichthys innominatus Bleeker, 1860

References
  1. Koeck, M. (2019). "Girardinichthys viviparus". IUCN Red List of Threatened Species. 2019: e.T9196A3150258. doi:10.2305/IUCN.UK.2019-2.RLTS.T9196A3150258.en.
  2. Froese, Rainer and Pauly, Daniel, eds. (2019). "Girardinichthys viviparus" in FishBase. April 2019 version.
  3. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Girardinichthys". Catalog of Fishes. California Academy of Sciences. Retrieved 19 September 2019.
  4. "Girardinichthys viviparus". Goodeid Working Group. Retrieved 23 September 2018.
  5. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Cyprinus viviparus". Catalog of Fishes. California Academy of Sciences. Retrieved 19 September 2019.
  6. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Girardichthys". Catalog of Fishes. California Academy of Sciences. Retrieved 19 September 2019.


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