IUCN threat status:

Vulnerable (VU)

Comprehensive Description

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  Common names: triplefin (English), tres aletas (Espanol)
Axoclinus cocoensis Bussing, 1991

Cocos triplefin

Body short, robust; head large; cirri on head small, simple, 1 pair over nostrils, 1pair over eyes; no teeth on sides of roof of mouth;  three dorsal fins (III + XIII + 9); dorsal fin soft rays unbranched; anal fin II, 18; pelvic fins completely separate; lateral line gradually descending from upper edge of gill cover to midlateral axis, with 21-26 tubed scales followed by 8-12 notched scales; scales above lateral line about twice as wide as long; scales small, none on head, breast, belly, and base of pectoral fins; total scales in longitudinal series 33-35.

Female: greyish, with orange lines on head and 3 irregular orange bars on body; Male:  head reddish, side with 3 broad dark brown bars with narrow whitish spaces between them; a black band around base of tail; caudal fin frequently black with pale base.

Size: reaches about 3.5 cm.

Inhabits shallow rocky areas.

Depth: 1-35 m.

Isla del Coco.   


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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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