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.
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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