Body very elongate, somewhat compressed; head strongly compressed; snout very long, tubular; barbel on chin; oblique mouth; no teeth on top jaw, tiny teeth on lower jaw; 1st dorsal fin with VIII-XIII small, isolated spines; pelvic fins well behind pectorals, short but reach anus; soft dorsal and anal opposite at rear of body, fins similar in shape and relatively high at front; narrow tail base; tail fin rounded; scales small, rough.
Color variable, usually brown to grey-brown above, with diffuse pale stripes and bars on the sides; at times completely yellow.
Size: 80 cm.
Habitat: rocky reefs.
Depth: 3-120 m.
An Indo-Pacific species; the tip of Baja, Panama to Ecuador and all the oceanic islands.