Diagnosis: body elongate; lower jaw forming long, narrow beak; upper jaw short, triangular and scaled; absence of scales on snout; no preorbital crest between eye and nasal pit; pelvic fins abdominal; dorsal and anal fins placed far back on body and spineless; caudal fin deeply forked (Ref. 57227).

Description: fins spineless; pectoral fins long, tips reaching to nasal pits when fins folded forwards; lower lobe caudal fin longer than upper (Ref. 57227).

Coloration: back bluish, belly silvery white; beak black with fleshy tip red; upper lobe of caudal fin purple-bluish with tip red; lower lobe bluish (Ref. 57227).