Common names: flounder (English), lenguado (Espanol)
Syacium longidorsale Murakami & Amaoka, 1992
Pompadour flounder, Long-fin flounder
Body height 42-48% of SL; head length 26-28% of SL; snout profile convex, at most a slight notch before top eye; snout longer than eye, length before top eye < 24% of head length; eyes on left side; eyes parallel; width between eyes < 6% of head length; mouth of moderate length, 31-37% of head length, ends under mid-eye; jaws on blind side not arched; fixed teeth in 2 rows in upper jaw, 1 row lower jaw; 7-9 short, fat, serrated lower gill rakers; dorsal rays 82-92, 3rd-5th rays long, ~ 30-50% of head length; 63-74 anal rays; eye-side pectoral 67-78% of head length (to 115% in male, with 1st ray elongate); base of eye side pelvic on midline of body; urinary papilla on blind side, immediately behind anus; lateral line not extending onto head, starts at corner of operculum, relatively straight; 50-57 lateral line scales; scales very rough in eye-side, smooth an blind side.
Eye side grey-brown, dorsal and anal with row of dark spots, pelvic a little darker, rear ½ of tail streaked; blind side yellow-white.
Size: 15 cm.
Habitat: sand and mud bottoms.
Depth: 10-40 m.
SE Gulf of California to Peru.
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