One-spot Moray, Gymnothorax monostigma (Regan 1909)

A One-spot Moray, Gymnothorax monostigma, from the west coast of Mohotane Island, Marquesas Islands - USNM 397088. Source: Jeffrey T. Williams, Division of Fishes, Smithsonian Institution, United States National Museum. License: CC by Attribution-NonCommercial-ShareAlike

A brown moray with a black patch surrounding and behind the eye, white spots surrounding the sensory pores along the upper and lower jaws and around the posterior nostril, and an orange margin on the fins.

Cite this page as:
Dianne J. Bray, Gymnothorax monostigma in Fishes of Australia, accessed 15 Jul 2024,

One-spot Moray, Gymnothorax monostigma (Regan 1909)

More Info


Recorded from Australian territories of Christmas Island and Cocos (Keeling) Island in the Indian Ocean. Elsewhere the species mostly occurs on oceanic islands in the Indo-west-central Pacific.
Inhabits surge channels of wave-swept seaward reefs.


Vertebrae 129-133.

Species Citation

Muraena monostigma Regan 1909, Ann. Mag. Nat. Hist. (8)4(23): 438. Type locality: Raiatea, Society Islands


Dianne J. Bray

One-spot Moray, Gymnothorax monostigma (Regan 1909)


Allen, G.R. & Erdmann, M.V. 2012. Reef fishes of the East Indies. Perth : Tropical Reef Research 3 vols, 1260 pp.

Böhlke, E.B., McCosker, J.E. & Smith, D.G. 1999. Family Muraenidae. pp. 1643-1657 in Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 3 pp. 1397-2068.

Böhlke, E.B. & Smith, D.G. 2002. Type catalogue of Indo-Pacific Muraenidae. Proceedings of the Academy of Natural Sciences of Philadelphia 152: 89-172.

Myers, R.F. 1999. Micronesian Reef Fishes. A comprehensive guide to the coral reef fishes of Micronesia. Guam : Coral Graphics vi 330 pp. 192 pls.

Randall, J.E. 2005. Reef and shore fishes of the South Pacific. New Caledonia to Tahiti and the Pitcairn Islands. Honolulu : University of Hawaii Press 707 pp.

Regan, C.T. 1909. Descriptions of new marine fishes from Australia and the Pacific. Annals and Magazine of Natural History (8)4(23): 438-440. 

Quick Facts

CAAB Code:37060084

Depth:1-30 m

Habitat:Reef associated

Max Size:65 cm TL

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CAAB distribution map