Riffle Minnow

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).

Inhabits gravel and rubble runs and riffles of creeks and small to medium rivers (Ref. 5723, 10294).