Endangered
Cuatro Cienegas pupfish
Cyprinodon bifasciatus
Cuatro Cienegas pupfish is a ray-finned fish in the family Cyprinodontidae (order Cyprinodontiformes) — Cyprinodon bifasciatus, recorded as Endangered.
The ray-finned fish
Killifish, livebearers, and splitfins — small-bodied freshwater fishes, many of them from a single lake, spring, or seasonal pool.
Range and habitat
It is endemic to the Cuatro Cienegas springs in Coahuila state, northeastern Mexico.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Small desert or forest fishes in this order live in water that can vanish. The egg bank, if there is one, is the only reserve.
In crisis
Cuatro Cienegas pupfish is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Cuatro Cienegas pupfish — often a short stub, Wikidata item Q304779. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
