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Species: Chilomycterus antillarum, Web Burrfish

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eye tentacle small/absent
network black lines + 5-7 large dark blotches
no spots body or fins
spines few, short, immovable
juv: black + orange spines

Chilomycterus antillarum Jordan & Rutter, 1897

Web Burrfish

Body rotund, can be inflated; head wide and blunt; eyes large; any tentacle over eye is smaller than eye; nasal organ a short, hollow tentacle with 2 openings; teeth fused into a strong, parrot-like beak with two plates that lack a front groove, large, opens widely at front; gill opening a vertical slit before pectoral base; pectorals large; fins without spines; tail fin with 9 (9-10) rays; no pelvic fins; body and head covered with relatively few, short (< eye), fixed, 3-rooted spines that are triangular and flattened in cross-section, and, in some cases reduced to plates under skin; no spines wholly atop tail base.

Cream; a honeycomb network of fine black lines on body and head; 5-7 large dark blotches on back and sides, including one at base of dorsal fin; no black spots on body or small black spots on fins. Juvenile with oranges spines on a black background; fins clear

Size: grows to about 30 cm.

Inhabits coral and rocky reefs, but also trawled on soft bottoms.

Depth: 2-136 m.

N Carolina through the Caribbean to northern Brazil.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Rocks
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Corals
  • Mud
  • Reef (rock/coral/oyster)
  • Reef and soft bottom
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic gastropods/bivalves
  • Sea-stars/cucumbers/urchins
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • Also in Brazil
  • Continent
  • Continent + Island (s)
  • Extends N + S of GC
  • Extends North of GC
  • Extends South of GC
  • GC non-endemic
  • Island (s)
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 30
Depth Range Min
  • 2
Depth Range Max
  • 136