Yellowmouth Moray, Gymnothorax nudivomer (Playfair 1866)

Other Names: Yellow-mouth Moray

A Yellowmouth Moray, Gymnothorax nudivomer, at North Solitary Island, New South Wales, January 2017. Source: Ian Shaw / License: CC by Attribution-NonCommercial

A brownish to yellowish-brown moray with bright yellow inside the mouth, numerous small white spots on body anteriorly, larger and widely-spaced spots posteriorly, and a dark blotch around gill openings.
The Yellowmouth Moray is reportedly poisonous as the mucous is toxic.

Cite this page as:
Dianne J. Bray, Gymnothorax nudivomer in Fishes of Australia, accessed 25 May 2024,

Yellowmouth Moray, Gymnothorax nudivomer (Playfair 1866)

More Info


Recorded in Australia from Exmouth to off Pardoo, Western Australia, also on the Sahul Banks, Timor Sea, and from the Capricorn Bunker Group, Great Barrier Reef, Queensland, to the Solitary Islands, New South Wales. Elsewhere the species is widespread in the Indo-Pacific, from the Red Sea and South Africa to the Hawaii and the Marquesas Islands in the Central Pacific.
Inhabits inner and outer reef slopes, mostly on oceanic islands.

Species Citation

Muraena nudivomer Playfair, 1866, Fishes of Zanzibar: 127. Type locality: Zanzibar (lectotype). 


Dianne J. Bray

Yellowmouth Moray, Gymnothorax nudivomer (Playfair 1866)


Allen, G.R. 1997. Marine Fishes of Tropical Australia and South-east Asia. Perth : Western Australian Museum 292 pp. 106 pls.

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. & McCosker, J.E. 2001. The moray eels of Australia and New Zealand, with the description of two new species (Anguilliformes: Muraenidae). Records of the Australian Museum 53: 71-102 figs 1-10

Chen, H.-M., K.-T. Shao & C.T. Chen.1994. A review of the muraenid eels (Family Muraenidae) from Taiwan with descriptions of twelve new records. Zoological Studies 33(1): 44-64.

Grant, E.M. 2002. Guide to Fishes. Redcliffe : EM Grant Pty Ltd 880 pp.

Kuiter, R.H. & T. Tonozuka. 2001. Pictorial guide to Indonesian reef fishes. Part 1. Eels- Snappers, Muraenidae - Lutjanidae. Zoonetics, Australia. 302 pp.

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.

Playfair, R.L. in Playfair, R.L. & Günther, A. 1866. The Fishes of Zanzibar. London : John van Voorst 146 pp. 21 pls.

Randall, J.E., Allen, G.R. & Steene, R. 1990. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 507 pp. figs.

Randall, J.E., Allen, G.R. & Steene, R. 1997. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 557 pp. figs.

Russell, B.C. 1983. Annotated checklist of the coral reef fishes in the Capricorn-Bunker group, Great Barrier Reef, Australia. Great Barrier Reef Marine Park Authority. Special Publication Series 1: 1-184 figs 1-2

Quick Facts

CAAB Code:37060047

Danger:Poisonous to eat

Depth:2-271 m

Habitat:Reef associated

Max Size:18 cm TL

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Species Maps

CAAB distribution map