Phenacobius catostomus
Phenacobius catostomus Jordan, 1877
Riffle minnow
Phenacobius catostomus
photo by Freshwater Information Network (FIN)


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Family:  Leuciscidae (Minnows), subfamily: Pogonichthyinae
Max. size:  12 cm TL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  North America: Mobile Bay drainage in southeastern Tennessee, northwestern Georgia and Alabama, USA.
Diagnosis:  Phenacobius catostomus can be distinguished by having the following characters: body very long, cylindrical; lips as in suckermouth minnow, P. mirabilis; eyes high on head, directed upwardly; back dark gray-brown; upper side light brown; silver sheen over dusky stripe along side; 56-69 scales on lateral line; 15-19 scales around caudal peduncle (Ref. 86798).
Biology:  Adults inhabit gravel and rubble runs and riffles of creeks and small to medium rivers (Ref. 5723, 10294). Migratory behaviour is undetermined (Ref. 126106).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 March 2012 Ref. (130435)
Threat to humans:  harmless


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