Species: Chascanopsetta lugubris, Pelican flounder

Chascanopsetta lugubris Alcock, 1894

Pelican flounder

Body slender (depth 25-33% SL), tapering; head length 20-25% SL, front profile concave, well developed notch before lower eye; eyes on left side of head; eyes close-set, separated by < eye diameter; lower eye not before top eye;  eye diameter 24-28% head length; mouth very large, top jaw at least 70% head length, reaching well past rear edge of eye; teeth small, on both sides of both jaws; gill rakers absent to 1-2 rudiments; dorsal fin 114-122, origin well before top eye; pectoral rays not branched; anal fin 77-85; pectoral 14-17, eye side pectoral larger than blind side fin; eye-side pelvic fin with origin under lower eye, with much longer base, situated on body midline, its origin before that of blind-side; lateral line on eye side only, with distinct arch over eye side pectoral fin, no branch under lower eye; scales small, smooth, lateral line ~190.