''Evarra'' was a genus of small

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

in the family

Leuciscidae Leuciscidae is a family of freshwater ray-finned fishes, formerly classified as a subfamily of the Cyprinidae, which contains the true minnows. Members of the Old World (OW) clade of minnows within this subfamily are known as European minnow ...

. All species in the genus were restricted to waters in the

Valley of Mexico The Valley of Mexico (; ), sometimes also called Basin of Mexico, is a highlands plateau in central Mexico. Surrounded by mountains and volcanoes, the Valley of Mexico was a centre for several pre-Columbian civilizations including Teotihuacan, ...

and are now

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

due to habitat loss (their habitat dried out with remaining waters in the region highly polluted).Bruton, Michael N. "Have fishes had their chips? The dilemma of threatened fishes". ''Environmental Biology of Fishes'' 43: l-27, 1995.

Species

* †'' Evarra bustamantei'' Navarro, 1955 ( Mexican dace) * †'' Evarra eigenmanni'' Woolman, 1894 ( plateau chub) * †'' Evarra tlahuacensis'' Meek, 1902 ( endorheic chub)

References

* Laviniinae Fish of North America becoming extinct since 1500 Freshwater fish of Mexico Ray-finned fish genera Taxonomy articles created by Polbot {{Leuciscinae-stub