Unique Characters: Stocky body with dark chin barbels. Pectoral spines with poorly developed “teeth.” Caudal fin base with rectangular pale area. Total gill rakers on first arch typically 17-29. Body not mottled.
Brown Bullhead Ameiurus nebulosus. Pectoral spines with well-developed “teeth” (serrations). Caudal fin base uniformly dusky. Total gill rakers on first arch typically 13-15. Body often mottled.