Slender Unicornfish, Naso lopezi Herre 1927

Other Names: Elongate Unicornfish, Lopez' Unicornfish, Slender Unicorn

Slender Unicornfish, Naso lopezi, at Tulagi Island, Solomon Islands, March 2018. Source: Mark Rosenstein / License: CC By Attribution-NonCommercial-ShareAlike

A slender greyish unicornfish becoming white below, with no horn and numerous black close-set spots on the upper body and tail.

Cite this page as:
Bray, D.J. 2018, Naso lopezi in Fishes of Australia, accessed 16 Apr 2024,

Slender Unicornfish, Naso lopezi Herre 1927

More Info


Northern Great Barrier Reef to the Capricorn Group, Queensland and reefs in the Coral Sea. Elsewhere the species occurs in the tropical, west-central Pacific. Small to very large groups inhabit outer reef slopes and steep drop-offs, often in areas with strong currents.


Bray, D.J. 2018


Australian Faunal Directory

Slender Unicornfish, Naso lopezi Herre 1927


Abesamis, R., Nanola, C., Stockwell, B., Choat, J.H., Clements, K.D., McIlwain, J., Myers, R., Rocha, L.A. & Russell, B. 2012. Naso lopezi. The IUCN Red List of Threatened Species 2012: e.T177979A1509470. Downloaded on 31 August 2018.

Alcazar, S. & Alcala, A.C. 1977. Food habits of the surgeonfish, Naso lopezi. Fisheries Research Journal of the Philippines 2(1): 83-87

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

Borden, W.C., 1998. Phylogeny of the unicornfishes (Naso, Acanthuridae) based on soft anatomy. Copeia 1998(1): 104-113.

Comeros-Raynal, M.T., Choat, J.H., Polidoro, B.A., Clements, K.D., Abesamis, R., Craig, M.T., Lazuardi, M.E., McIlwain, J., Muljadi, A., Myers, R.F., NaƱola Jr., C.L., Pardede, S., Rocha, L.A., Russell, B., Sanciangco, J.C., Stockwell, B., Harwell, H. and Carpenter, K.E. 2012. The likelihood of extinction of iconic and dominant components of coral reefs: the parrotfishes and surgeonfishes. PLoS ONE

Herre, A.W. 1927. Philippine surgeon fishes and moorish idols. Philippine Journal of Science 34(4): 403-478 

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Randall, J.E. 2001. Surgeonfishes of Hawai'i and the World. Honolulu : Mutual Publishing and Bishop Museum Press 125 pp. 

Randall, J.E. 2001. Zanclidae, Acanthuridae. pp. 3651-3683 in Carpenter, K.E. & Niem, T.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 6 pp. 3381-4218.

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.

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.

Quick Facts

CAAB Code:37437030

Conservation:IUCN Least Concern

Depth:6-70 m

Habitat:Reef associated

Max Size:60 cm SL

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CAAB distribution map