Largemouth shiner

The largemouth shiner (Cyprinella bocagrande) is a critically endangered freshwater ray-finned fish in the family Leuciscidae, the shiners, daces and minnows.^[2] It is found only in the Guzmán Basin in northwestern Chihuahua, Mexico,^[3] where it is called sardinita bocagrande.^[1] In 2012, it only survived in a single spring, which also was the last remaining habitat for the Carbonera pupfish (Cyprinodon fontinalis) and the dwarf crayfish Cambarellus chihuahuae. As this single spring was declining, it was decided to move some individuals of all three species to a nearby refuge in 2014 as a safeguard.^[4] The largemouth shiner grows to a standard length of 4.1 cm (1.6 in).^[3]

Largemouth shiner
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Leuciscidae
Subfamily:	Pogonichthyinae
Genus:	Cyprinella
Species:	C. bocagrande
Binomial name
Cyprinella bocagrande (Chernoff & R. R. Miller, 1982)
Synonyms[2]
Notropis bocagrande Chernoff & Miller, 1982