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| Common names: mullet (English), lisa (Espanol) |
Mugil galapagensis Ebeling, 1961
Moderately elongate, robust body; head broad, flattened above; eyes mostly covered by a well developed transparent fatty eyelid; mouth small (rear end of upper jaw not reaching under front rim of eye), opens at front, lips thin; no knob at front of lower lips; outer row of teeth in jaws forked; no teeth on tongue or roof of mouth; two short, widely spaced dorsal fins, IV + I, 9; anal fin III, 8 (II, 9 in juveniles); pectorals high on body, 1st ray hard, fin very short, not reaching level of origin of first dorsal fin; pelvics inserted behind pectoral base; forked tail; scales moderate to large, rough on body of adults; scales in lateral series 44 (43-45); second dorsal and anal with scales on inner parts of membranes of front few rays; no lateral line.
Dark phase: dusky; pectorals black, with silver base; tail dark. Yellowtail phase: olive green above, silvery green on sides; 5-6 faint brownish stripes on side along scale rows; tail fin yellow; pelvics white; outer half of anal fin yellow; first dorsal white, with dark spines; pectoral base dark blue.
Size: 90 cm.
Habitat: juveniles in mangrove lagoons; dark adults on rocks and sandy bottoms; yellowtail adults feed at surface in clear water near reefs.
Depth: 0-20 m.
Restricted to the Galapagos Islands.