Species: Monolene sessilicauda, Deepwater flounder

Monolene sessilicauda Goode, 1880

Deepwater flounder

Body elongate, tapering to tail; head relatively pointed; snout < eye; eyes on left side; between eyes narrow, with crest that lacks spines; mouth short, ends under front part of lower eye; teeth ~equally developed on eye- and blind-sides; gill rakers moderately elongate and slender, 8-10; 92-109  dorsal rays; 76-89 anal rays; pectoral fin rays not branched, fin short, 11-14 rays, lower rays shorter than top rays, no fin on blind side in adults; base of eye-side pelvic fin about equal to base of blind-side fin, situated on body midline, its origin slightly behind that of blind-side fin; scales rough on eye side, smooth on blind side; 88-94 lateral line scales; lateral line on eye side only, strongly arched above the pectoral, no branch under lower eye.