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Species: Hyporthodus nigritus, Warsaw grouper

All Families:   All Genera:   All Species:

deep oblong
all red-brown to black
juv: red-brown + few white spots, yellow C
D X, spine II v elongate
nostrils equal

Hyporthodus nigritus (Holbrook, 1855)

Warsaw grouper

Body robust, compressed, a deep oblong, deepest at origin of dorsal fin, depth < head length; rear of top jaw exposed when mouth closed, without bony knob at lower rear corner; teeth depressible; sides of roof of mouth with teeth; front & rear nostrils ~equal; operculum edge with 3 flat spines; edge of preopercle with slightly enlarged teeth and 1-2 small spines at the rounded angle; 23-25 gill rakers; dorsal fin X, 13-15, spine II distinctly elongated, twice length of spine X, membranes between spines deeply indented, length of base of soft part not longer than that of spiny part; anal fin III, 9; pectoral fin symmetrically rounded, 16-18; origin of pelvic before lower edge of pectoral base, juveniles with pelvics longer than pectorals; tail rounded or bluntly straight; body scales rough on sides, 62-72 on lateral line.

Adult: dark reddish brown to brownish grey to almost black along top of back, dull reddish grey below; some small pale blotches scattered on body. Juvenile: red-brown, with a yellow tail fin, and a few scattered whitish spots on body.

Size: 235 cm, 198 kg.

Adults and juveniles on hard bottoms.

Depth: 25-525 m; juveniles enter shallow water, adults at > 55 m.

Massachusetts to Brazil, occasionally in the E Atlantic.

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  • Marine
  • Marine Only
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Reef only
  • Rocks
  • Corals
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Bony fishes
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
  • All species.
Regional Endemism
  • Island (s)
  • Continent + Island (s)
  • Extends North of GC
  • Extends N + S of GC
  • Extends South of GC
  • Also in Brazil
  • GC non-endemic
  • All species..
  • Continent
  • Resident
Climate Zone
  • Tropical (10-23N, Nicaragua / Cuba)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
IUCN Red List
  • Near threatened
  • Listed
  • Not listed
Length Max
  • 235
Depth Range Min
  • 25
Depth Range Max
  • 525