Shorefishes of the Eastern Pacific online information system

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Species: Gymnothorax flavimarginatus, Yellow-edged moray, Yellow-margin moray

All Families:   All Genera:   All Species:

yellow + dense brown spotting
eye orange
gill opening in black patch
D&A margin yellow-green
teeth compressed, serrated

Gymnothorax flavimarginatus (Rüppell, 1830)

Yellowmargin moray, Yellow-edged moray

Adults heavy bodied; 1 row of 1-3 canines at front of upper jaw; sides of top jaw with 2 rows of teeth, outer row larger, recurved, compressed, serrated; dorsal and anal fins covered with skin, but clearly evident; dorsal fin origin a little before gill opening; anus a little before mid-length.

Yellowish, densely and finely mottled with dark brown; eye orange; a prominent black blotch covering gill opening; yellow-green margins on dorsal and anal fins.

Size: reaches 124 cm.

Habitat: rocky bottoms.

Depth: 1-150 m, usually <50m.

Widespread in the tropical Indo-Pacific from East Africa to the Americas; the tip of Baja California to Colombia.

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  • Marine Only
  • Marine
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom only
  • Bottom
  • Corals
  • Rocks
  • Reef only
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Data
  • Carnivore
  • Octopus/squid/cuttlefish
  • Data
  • Bony fishes
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Pelagic
  • Pelagic larva
  • No data
Global Endemism
  • "Transpacific" (East + Central &/or West Pacific)
  • All species
  • TEP non-endemic
  • All Pacific (West + Central + East)
  • Indo-Pacific only (Indian + Pacific Oceans)
Regional Endemism
  • Tropical Eastern Pacific (TEP) non-endemic
  • All species
  • Continent
  • Island (s)
  • Continent + Island (s)
  • Eastern Pacific non-endemic
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 124
Depth Range Min
  • 1
Depth Range Max
  • 150