This is a small species of perch (adults usually <300 mm) with laterally compressed in cross section, with 6-8 dark vertical bars on the sides, 2 spines, 6-8 soft rays in the anal fin; small teeth in bruch-like patches on the jaws and roof of the mouth. For further information and a discussion of similar species, refer to McPnail (2008).
Source: McPail, J. D. 2008. The Freshwater Fishes of British Columbia. University of Alberta Press, Edmonton.