 The origin of the first dorsal fin is about even with the origin of the pelvic fins, while the origin of the anal fin is even with or somewhat behind the origin of the second dorsal fin.The caudal fin has a shallow upper lobe and barely present lower lobe, comprising about a quarter of the total length in adults.The dermal denticles are diamond-shaped, bearing 4–5 faint ridges radiating from a blunt point.