Slender chub

"Slender chubs" is also used for the genus Erimystax as a whole.

The slender chub (Erimystax cahni) is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows.^[4] It is found only in the United States, within the Clinch and Powell rivers.^[5] It is likely extirpated from the Holston River, having last been observed there in 1941.^[6] Due in part to a lack of targeted surveys, slender chub have not been definitively observed since the 1990s. The 2021 5-year review of this federally threatened species recommended environmental DNA sampling in future surveys with comparison to DNA extracted from preserved specimens.^[6] Environmental DNA surveillance was conducted in 2022, and eDNA for the species was detected in both the Clinch and Powell rivers.^[7]

Slender chub
Conservation status
Endangered  (IUCN 3.1)[1]
Threatened (ESA)[2][3]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Leuciscidae
Subfamily:	Pogonichthyinae
Genus:	Erimystax
Species:	E. cahni
Binomial name
Erimystax cahni (C. L. Hubbs & Crowe, 1956)
Synonyms[4]
Hybopsis cahni Hubbs & Crowe, 1956