"Breitensteinia" species have a head that is depressed, broad, and covered with small tubercles, a tubular anterior nostril, a narrow occipital process with its tip tapering and reaching predorsal plate, a body with tubercles arranged in five to six longitudinal rows on each side, a dorsal profile rising evenly but not steeply from the tip of snout to the origin of dorsal fin and then sloping gently ventrally from there to the caudal peduncle, a horizontal ventral profile to the origin of the anal fin and then rising to the caudal peduncle, a dorsal fin origin nearer to the tip of the snout than caudal flexure, and a truncate caudal fin.