IUCN threat status:

Least Concern (LC)

Comprehensive Description

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  Common names: damselfish (English), jaqueta (Espanol)
Microspathodon bairdii (Gill, 1862)

Bumphead damselfish

Body deep, oblong, thick, compressed; adults  with a pronounced bump on forehead; 1 pair of nostrils; preorbital bone (before & under front of eye) very broad, deep, with pronounced notch over top jaw; margins of preopercle and suborbital bone under rear of eye smooth, scaled; mouth small, protrusible; teeth in single row, upper teeth flexible, forming a brush; lower gill rakers 17-21; a single continuous dorsal fin, XII, 15-16; anal rays II,13-14; dorsal, anal and tail fins with blunt angular rear tips; pectoral rays 21-23; no projecting short spines at upper and lower base of tail fin; caudal fin bluntly forked; scales are moderately large and rough; lateral-line scales 20-23; body scaled, head largely scaled, as are the basal parts of the median fins; lateral line incomplete, ends under end of dorsal fin base.

Dusky dark grey brown, median fins with slight golden-brown hue; iris bright blue; juveniles  mainly bright blue on upper half of head and body, and yellow on lower half.

Size: grows to 31 cm.

Inhabits rocky shores.

Depth: 1-10 m.

Mouth of the Gulf of California to Ecuador, including all the offshore islands except Clipperton.


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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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