IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Description

  Common names: sea-catfish (English), cominata (Espanol), bagre (Espanol)
 
Ariopsis guatemalensis (Günther, 1864)


Blue sea-catfish,     Widehead sea-catfish


Body moderately elongate;  head long, flat; head shield rough, without ridges extending forward; central head groove flat, scarcely apparent, ending well before base of bony nape process; eye small, ~ 25% of distance between eyes; no fleshy furrow between rear nostrils; gill opening wide, membranes not adhering to breast; gill rakers on first arch 6-7 + 11-14; no spines on posterior surface of first two arches; palate teeth arranged in four patches, the medial patches narrowly separated at midline and continuous with the outer patches, the four tooth patches about the same size; dorsal rays I, 7; adipose dorsal fin base about 3/4 of first dorsal fin base; anal rays 17-20; pectoral rays I, 10-11, pectoral spine very strong and with prominent serrations on inner margin.




Bluish black or charcoal on back, greenish violet on sides, and silvery white on lower surface; fins dusky to blackish.

Size: reaches 45 cm.

Habitat: in brackish waters but also regularly enters freshwater.

Depth: 0-20 m.

Central Mexico to Costa Rica.
   

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© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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