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Species: Centropomus mexicanus, Large-scale fat snook, Largescale fat snook

All Families:   All Genera:   All Species:

snout not upturned
D2 I, 9-10
lower gill rakers 9-12
pectoral 14-17, fin =/> pelvic
A III, 6, 2nd spine thick, curved back, reaches past 3rd when erect
scales: 68-79 laterals, LL to A origin 10-16, D2 to LL 10-15

Centropomus mexicanus Bocourt, 1868

Largescale fat snook

Body oblong, compressed, moderately deep; upper head profile straight to slightly concave; mouth large and protractile, lower jaw protruding; teeth small, in bands; margin of preopercle serrated; gill rakers 14-17, lower rakers 9-12; dorsal rays VIII + I, 9 (rarely 8 or 10), 3rd spine > 4th; anal fin short, III strong spines, 5-7 (usually 6), second spine very stout, curved, longer than 3rd spine when erect, not reaching to level of tail fin base when depressed; pectoral soft rays 14-17, fin about as long as pelvic; pelvics insert a little behind pectoral base, with I strong spine and 5 rays; tips of pelvic fins reach to or past anus; scales large, rough, lateral scales (immediately above lateral line) 68-79 (usually 70-77); 10-15 (usually 11-14) scales between lateral line and origin of 2nd dorsal fin, 10-16 between lateral line and anal fin origin; lateral line extends to the end of the forked tail fin.

Overall yellow-brown to greenish-brown above, silvery below; dark lateral line; fins dusky, tail fin reddish.

Size: to 60 cm.

Inhabits bays, estuaries, more frequently marine than in freshwater.

Depth: 0-20 m.

SE Florida and the W Gulf of Mexico to southern Brazil.

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  • Marine
  • Brackish
  • Freshwater
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Mid Water
  • Bottom + water column
  • Near Bottom
  • Soft bottom only
  • Mud
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Mangrove
  • Freshwater
  • Estuary
  • Water column
  • Beach
  • Sand & gravel
FishBase Habitat
  • Demersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Bony fishes
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • West Atlantic Endemic
  • Greater Caribbean non-endemic
  • All species
Regional Endemism
  • Extends South of GC
  • Island (s)
  • GC non-endemic
  • Continent + Island (s)
  • Continent
  • All species
  • Also in Brazil
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Listed
  • Least concern
  • Not listed
Length Max
  • 60
Depth Range Min
  • 0
Depth Range Max
  • 20