Small minnow (typically <200 mm) with a deeply forked caudal fin; unusually high number of anal rays (10-22), deep, laterally compressed body; the origina of the dorsal fin lies well behind the origin of the pelvic fins. Refer to McPhail (2008) for a detailed description and discussion of similar species.
Source: McPail, J. D. 2008. The Freshwater Fishes of British Columbia. University of Alberta Press, Edmonton.