Author: Fowler, 1934
Diagnostic Features:
Anterior nasal flaps very short, not expanded into barbels; snout very long, bulbously conical, length almost half head length and about equal to distance from mouth to pectoral origins; gill openings very small, uniformly wide; lips thin, not fringed, pleated or suctorial; teeth strongly different in upper and lower jaws, uppers small, with narrow, acute, erect cusps and no cusplets, not bladelike, lowers much larger, bladelike, interlocked, with a high, moderately broad, semi-erect cusp and distal blade, edges no serrated; tooth rows 22/23. Both dorsal fins spineless; first dorsal well forward, origin over pectoral bases, insertion far ahead of pelvic origins and much closer to pectoral bases than pelvics; second dorsal fin slightly larger than first but with base about equal to first dorsal base; origin of second dorsal over midbase of pelvics; pectoral fins with short, narrowly rounded free rear tips and inner margins, not expanded and acute or lobate; caudal fin semisymmetrical, almost paddle-shaped, with moderately long upper lobe and well-developed lower lobe, subterminal notch strong. No precaudal pits, lateral or midventral keels on caudal peduncle. Dermal denticles flap but with pedicels, with lanceolate, ridged, wedge-shaped, monocuspidate crowns. Cloaca normal, not expanded as a luminous gland. Colour brown with conspicuous light and dark banded fin margins.