Colour silvery grey, darker above. A dark spot at bases of pectoral fins. Pelvic and anal fins often yellowish. A medium-sized to small fish, short and robust. Mouth very large, strongly oblique, lower jaw projecting. Teeth very small and sharp, set in 1 or 2 rows along edges of jaws. Chin without barbels, but with 4 minute pores. Snout with 5 marginal pores, no rostral pores. Gas bladder with a pair of small, horn-like anterior appendages. Sagitta (large earstone) thick and short (Ref 51721).