Shoshone pupfish (Cyprinodon nevadensis shoshone) collected in Shoshone, California.
This fish was considered extinct at one point, but was rediscovered at the source of a spring in the town of Shoshone, California, in 1986.
This species is listed as Vulnerable on the IUCN Red List.
Cardinal tetra (Paracheirodon axelrodi) at the Dallas World Aquarium.
This fish species is endemic to the Rio Negro River in Brazil, the second-largest tributary of the Amazon.