Gymnothorax flavimarginatus   (Ruppell,  1830) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Max length: 240 cm TL (male/unsexed).

Color: Highly variable; generally brown to blackish, densely mottled with light brown to whitish spots. Coloration sometimes consisting of very small indistinct dark brown spots which may fuse to form larger irregular patches. Median fins narrowly edged with white posteriorly; corner of mouth often dark; gill opening always in a dark brown or black blotch.

Head 8.0-9.2, depth of body 14.8-17.5, both in total length. Tail equal to or about ½ length of head longer than head and trunk. Head 2.9-3.4 in trunk. Eye diameter 8.3-10.4 in head, 1.4-1.7 in snout and 1.1-1.4 in interorbital space. Anterior nostrils tubular, on each side of tip of snout, posterior nostrils above anterior edge of eye, with slightly raised rims. Cleft of mouth 2.2-2.5 in head. Teeth in single series in jaws, those near the symphysis longer than others; maxillary with an inner row of 2-3 teeth; premaxillary with a median series of 2-3 fang-like teeth; vomer with 2 irregular series of small teeth. Dorsal fin origin nearer to gill opening than to corner of mouth.

Most often appears on the reef after a fish has been speared during daylight. The regularity and promptness of such appearances make it clear that Gymnothorax flavimarginatus is especially sensitive to stimuli emanating from an injured or stressed fish.
Feeds on fishes and crustaceans.

Remarks: Values in above description denote proportions.

Synonym (s)
Muraena flavimarginata Ruppell, 1828
Gymnothorax flavimarginatus Jones, 1969
Lycodontis flavimarginatus Smith, 1962
Muraena (Gymnothorax) flavimarginata Weber and de Beaufort, 1916
Gymnothorax mauritianus (Kaup, 1856)
(Junior synonym)
Gymnothorax viridipinnnis Bliss, 1883
(Junior synonym)
Lycodontis flavimarginatus (Ruppell, 1830)
(Senior synonym)
Lycodontis lemayi Smith, 1949
(Junior synonym)
Muraena flavimarginata Ruppell, 1830
(Senior synonym)
Muraena mauritiana Kaup, 1856
(Junior synonym)
Muraena viridipinnna Seale, 1917
(Ambiguous synonym)
Gymnothorax flavomarginatus (Ruppell, 1830)
Lycodontis flavomarginatus (Ruppell, 1830)

Common Name (s)
• Yellow Edged Moray (English)
• Yellowmargin Moray (English)
• Karimalanhi (Malayalam)
• Kaluveng
Economic Importance and Threats
Importance:  Commercial, Dangers
(Fisheries, aquarium
Reported to cause ciguatera poisoning)

Habitat:  Benthic, Reef Associated, Rocky
Trophic Level:  Tertiary Consumer
Prey:  Cephalopods, fishes, and crustaceans


• Lakshadweep, Agatti INDIA
• Lakshadweep, Bitra INDIA
• Lakshadweep, Chettalatt INDIA
• Lakshadweep, Kalpeni INDIA
• Lakshadweep, Kilttan INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep INDIA
• Red Sea
• Andaman and Nicobar Islands, Great Nicobar Island INDIA (Record: 08/2000-07/2003)
• Andaman and Nicobar Islands, North Reef Island INDIA
• Karnataka, Netrani Island INDIA
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Rajaram, R; Srinivasan, M; Khan, SA and Kannan, L (2004) Ichthyofaunal diversity of great Nicobar Island, Bay of Bengal Journal of Indian fisheries association 31 13-26 Available at - NIO, Goa
  • Rajaram, R and Nedumaran, T (2009) Ichthyofaunal diversity in great Nicobar biosphere reserve, Bay of Bengal Journal of Threatened Taxa Wildlife Information Liaison Development Society 1(3) 166-169 Available at -
  • Rao, GC; Rao, DV and Devi, K (1994) A faunal exploration of the North Reef Island sanctuary, North Andaman Journal of the Andaman Science Association Andaman Science Association, Port Blair 10(1&2) 68-81 Available at - NIO, Goa
  • Jones, S. (1969) Catalogue of fishes from the Laccadive Archipelago in the reference collections of the Central Marine Fisheries Research Institute. Bulletin of Central Marine Research Institute CMFRI, Cochin 8 1-35 Available at -
  • Thomas, S; Sreeram, MP; Kakati, VS; Manisseri, MK and George, RM (2011) Coral fish diversity in Netrani waters off Murudeshwar Karnataka, south India Indian journal of fisheries CMFRI 58(1) 45-51 Available at -
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 Available at - NIO,Goa

Page last updated on:2011-06-29

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