Prominent "canine" teeth distinguish this big perch from its smaller family member, the yellow perch. Color is brassy-olive buff sometimes shading to yellowish sides and white beneath. No distinct bars on the sides, but rather an overall mottling of black or brown. Large dark blotches at rear base of dorsal fin, and the lower lobe of the tail fin is white tipped. The tail is moderately forked. Found in a few western Nevada waters including Lahontan and Rye Patch reservoirs, the Humboldt River below Rye Patch Reservoir, and Chimney Reservoir.