Percina tanasi

Percina tanasi Etnier, 1976
Snail darter

Family:	Percidae (Perches), subfamily: Etheostomatinae
Max. size:	9 cm TL (male/unsexed); max. reported age: 4 years
Environment:	benthopelagic; freshwater
Distribution:	North America: upper Tennessee River drainage of eastern Tennessee and northern Georgia in the USA.
Diagnosis:
Biology:	Occurs in gravel and sand runs of medium-sized rivers (Ref. 5723, 10294); also found in creeks (Ref. 10294). Feeds on small pleurocerid river snails, mostly Leptoxis and Lithasia, as well as some physid snails and limpets; also consumes caddisfly larvae (Glossosoma, Hydropsyche, Brachycentrus), midge and blackfly larvae, and a few mayfly nymphs (Ref. 10294).
IUCN Red List Status:	Vulnerable (VU); Date assessed: 25 April 2012 (B1ab(iii)) Ref. (130435)
Threat to humans:	harmless

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