Shorefishes of the Greater Caribbean online information system

Español  Contact

Species: Mycteroperca acutirostris, Western comb grouper

All Families:   All Genera:   All Species:

grey + white blotches & spots
eye to lower head & body: dark wavy stripes
preopercle - small lobe
juv: tail base - black saddle
lower gill rakers 32-36
D & A - end round

Mycteroperca acutirostris (Valenciennes, 1828)

Western comb grouper

Body elongate, robust, compressed, depth at dorsal origin not greater than at anal origin; snout much longer than eye; front and rear nostrils ~equal; lower jaw projecting; rear of top jaw exposed when mouth closed,  without accessory bone above it; teeth depressible; canines at front of jaws; preopercle serrated, angular, serrae at corner enlarged, forming a small lobe; gill rakers 48-55, lower rakers 32-36; dorsal fin with XI spines, indented between spines, 15-17 rays, rear edge rounded; anal fin with III spines, 10-12 rays, rear edge pointed in adult; tail fin concave; 67-77 scales on lateral line.

Adult: Head and body grey-brown, heavily mottled with irregular whitish spots and blotches; 3-4 dark brown stripes radiate rearwards from eye, the lower ones continuing along lower body as wavy stripes; a dark stripe along just above top jaw to edge of preopercle; median fins darker than body and with pale spots and streaks. Juvenile: with a small black saddle on top of tail base.

Reaches 80 cm.

Adults on reefs; juveniles on reefs, seagrass beds and mangroves.

Depth range: 3-91 m.

The Gulf of Mexico to Brazil.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Marine
  • Brackish
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Reef and soft bottom
  • Corals
  • Submerged vegetation
  • Reef (rock/coral/oyster)
  • Mangrove
  • Reef associated (reef + edges-water column & soft bottom)
  • Estuary
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Rocks
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Planktivore
  • Data
  • Bony fishes
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Octopus/squid/cuttlefish
  • Zooplankton
Egg Type
  • Pelagic larva
  • Data
  • Pelagic
Global Endemism
  • All species.
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • All species..
  • Island (s)
  • Continent + Island (s)
  • Also in Brazil
  • GC non-endemic
  • Extends South of GC
  • Continent
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Listed
  • Least concern
  • Not listed
Length Max
  • 80
Depth Range Min
  • 3
Depth Range Max
  • 91