Unique Characters: A large shark. No nictitating lower eyelid; nostrils close to front of snout, with long barbels and nasoral grooves connecting them with mouth. Snout very short, broad, and bluntly rounded. Mouth short, nearly transverse, and far forward on head, well in front of eyes. Anal fin present. Caudal fin much less than half the total length, strongly asymmetrical, with a pronounced subterminal notch but with ventral lobe hardly developed. Caudal peduncle not strongly depressed, without keels. No precaudal pits.
Similar Species: None.