Shorefishes of the Greater Caribbean online information system

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Species: Myrophis anterodorsalis, Longfin worm eel

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1 pore behind eye
D origin behind gill opening by 1-2X pectoral length
roof of mouth: teeth in 1 row

Myrophis anterodorsalis McCosker, Böhlke & Böhlke, 1989

Longfin worm eel

Moderately elongate, compressed; head and trunk < tail; 1 pore behind upper ½ of eye; snout blunt, broadly depressed, overhanging, without groove on underside; eye large, its size affected by sexual development, over middle of top jaw; front nostril tubular, rear nostril under a flap, opening into mouth; lips without barbells; teeth small, conical, curved back, an outer ring of 9-11 teeth + 2 large teeth at front between top jaws, 1 row of 12-16 small teeth on central roof of mouth; top jaw with 25-30 teeth in outer row, 15-16 on inner row; lower jaw with several large teeth at front, outer row of 26-30 teeth and inner row of 18-20; gill opening small; on underside;dorsal and anal confluent with tail; dorsal fin origin before mid-trunk, < twice head length behind snout tip, behind gill opening by 1-2X pectoral length; pectoral fin well developed, broad based; dorsal and anal fins confluent with tail fin; lateral line pores visible on head and trunk only, only a few behind anus, lines of each side of head connected by 2 canals with across top of head; 14-17 vertebrae before dorsal fin, 45-49 before anus.

Color uniform pale tan, with a fine speckling of brown spots.

Reaches 16.1 cm.

Lives on soft bottoms.

Depth range: 0-2 m.

The Caribbean.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom only
  • Mud
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
  • Sand & gravel
  • Reef only
FishBase Habitat
  • Reef Associated
  • Demersal
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
  • Bony fishes
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • West Atlantic Endemic
  • All species.
  • Greater Caribbean endemic
Regional Endemism
  • Continent + Island (s)
  • All species..
  • Caribbean endemic
  • Island (s)
  • GC endemic
  • Continent
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Listed
  • Least concern
  • Not listed
Depth Range Min
  • 0
Depth Range Max
  • 2
Length Max
  • 16.1