IUCN threat status:

Vulnerable (VU)

Comprehensive Description

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  Common names: grouper (English), mero (Espanol), garropa (Espanol)
Mycteroperca olfax (Jenyns, 1840)

Bacalao grouper,     Sailfin grouper

Body elongate, robust, compressed, depth at dorsal origin not greater than at anal origin; snout much longer than eye; lower jaw projecting; canines at front of jaws; preopercle serrated, with a notch; gill  rakers 24-29; dorsal rays XI,16-17  2nd  and 3rd  dorsal spines elongated, forming a definite lobe, with the second spine longer than third; anal rays III,11; pectoral rays 16-17; edge of tail regular, no filaments; scales in longitudinal series above lateral line 100-120.

Generally pale grey with numerous, close-set brown spots; 10-12 narrow brown bars or partial brown bars sometimes apparent on upper side; occasional individuals are entirely bright yellow (similar to yellow phase of M. rosacea from the Gulf of California).

Size: reaches at least 120 cm.

Inhabits rocky reefs.

Depth: 5-100 m.

Galapagos Archipelago, Cocos, Malpelo; occasional specimens between central Colombia and northern Peru.


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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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