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| Common names: sea-catfish (English), cominata (Espanol), bagre (Espanol) |
Ariopsis seemanni (Günther, l864)
Body moderately elongate; eye large, 36-63% of distance between eyes; head shield granular, the rough portion extending forward as broad triangular patch on each side of flattened, smooth area between eyes; central head groove well-defined, narrow, deep, but relatively short & not extending to base of bony nape process; bony nape process triangular with bluntly-rounded apex; no fleshy furrow between rear nostrils; gill opening wide, membranes not adhering to breast; gill rakers on first arch 5-8 + 9-15; no rakers on posterior face of first arch; lips thick and ruffled; teeth in four patches on palate, inner patches often separated at midline and continuous with distinctly larger outer patches; none of palatine teeth project backwards; dorsal rays I, 7; adipose dorsal fin base ~ 2/3 length of first dorsal base; anal rays 17-20; pectoral rays I, 10-11, pectoral spine strongly serrated.
Dark blue to greenish brown on back; sides greyish or with greenish-bronzy sheen; white on lower surface; fins dusky; pelvic fins with wide white border.
Size: reaches 35 cm.
Habitat: common in coastal waters, also entering estuaries.
Depth: 0-20 m.
The eastern Gulf of California to northern Peru.