Shorefishes of the Greater Caribbean online information system

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Species: Gnathophis bathytopos, Blackgut Conger

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snout long, overhanging , with ventral keel
LL pores # 2 & ~7-13 elevated, open above LL canal
top lip: low flange
stomach black

Gnathophis bathytopos Smith & Kanazawa, 1977

Blackgut Conger

Head pointed; tail 60-62% of TL; snout long, overhanging, with ventral keel; eye large, well back on head; front nostril a tube pointing down and forwards, rear nostril an oval hole immediately before eye; mouth ~horizontal, top lip with narrow flange; teeth simple, conical, in bands on both jaws; length of elongate tooth patch at front roof of mouth ~1/3 that of jaw tooth bands; top of gill opening below top of pectoral fin base; pectorals well developed, base short, ends above gill opening; dorsal fin origin over or slightly behind base of pectoral fin; dorsal and anal fins with segmented rays, confluent with tail fin; tail tip slightly stiff, with small fin; lateral line complete, pores 2 and 7-13 of lateral line elevated, opening from upper side of lateral line canal, 27-37 pores before anus.

Preserved fish brownish; stomach black.

Reaches 40 cm.

Pm soft bottoms.

Depth range: 90-366 m.

Chesapeake Bay to the Gulf of Mexico.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
  • Mud
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Bathydemersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean non-endemic
  • West Atlantic Endemic
Regional Endemism
  • Continent
  • Continent only
  • Extends North of GC
  • GC non-endemic
  • All species
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Temperate (>35N)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 40
Depth Range Min
  • 90
Depth Range Max
  • 366