Body flattened and elongated, both eyes on left side. Dorsal fin originating in front of eyes, very long, together with anal fin confluent with caudal fin. A single pelvic fin on midventral edge of the blind side confluent with anal fin. Pectoral fins absent. Snout rounded anteriorly, curved hook-like reaching the vertical of eyes. Mouth inferior and asymmetrical with small teeth present only on the blind side. Small eyes, very close together. Small scales, very fine ctenoid. A single straight lateral line on the eye side.
eye side beige with several dark brown blotches on dorsal and anal fins, blind side white.
common 7-15 cm (max. 20 cm).
Symphurus spp.: mouth terminal.
Soleidae and Pleuronectidae: eyes on the right side.
Bothidae, Scophthalmidae and Citharidae: dorsal and anal fins do not confluent with caudal fin.
BIOLOGY / ECOLOGY
Feeds on benthic invertebrates. Eggs and larvae planktonic.
benthic. Sandy substrate to depth of 25 m.