Stenodus
Stenodus is a genus of large-sized whitefish in the family Salmonidae. It consists of two species; one of them is extinct in wild. The two species have alternatively been considered subspecies of the single species Stenodus leucichthys.Species
The genus Stenodus is distinctive from other whitefishes due to its size and specialized predator morphology; however, evidence of independence from the broader freshwater whitefish genus Coregonus is not clearly evident.