Ringtail Surgeonfish, Acanthurus auranticavus Randall 1956

Other Names: Orange-socket Surgeonfish, Ring-tail Surgeon

A Ringtail Surgeonfish, Acanthurus auranticavus, in Fiji, May 2016. Source: Mark Rosenstein / iNaturalist.org. License: CC by Attribution-NonCommercial-ShareAlike

A dark brown surgeonfish, orange-brown below pectoral-fin base, a white band around the caudal fin base, groove of spine on caudal-fin base bright orange, and an orange blotch before and behind the pupil.

Cite this page as:
Dianne J. Bray, Acanthurus auranticavus in Fishes of Australia, accessed 02 Dec 2021, https://fishesofaustralia.net.au/home/species/1020

Ringtail Surgeonfish, Acanthurus auranticavus Randall 1956

More Info


Inhabits reef flats and reef crests.


Dorsal fin IX, 25-26; Anal fin III, 23-24. Anterior gill rakers 20-23, posterior 24-28. Large caudal spine, 2.2 - 4.4 in head.


A grazer/detritivore - feeds on detritus and sedimentary material.


Dianne J. Bray

Ringtail Surgeonfish, Acanthurus auranticavus Randall 1956


Choat, J.H., Robbins, W.D. & Clements, K.D. 2004. The trophic status of herbivorous fishes on coral reefs. Marine Biology 145: 445-454.

Comeros-Raynal, M.T., Choat, J.H., Polidoro, B., Clements, K.D., Abesamis, R., Craig, M.T., Lazuardi, M.E., McIlwain, J., Muljadi, A., Myers, R.F., et al. 2012. The likelihood of extinction of iconic and dominant components of coral reefs: the parrotfishes and surgeonfishes. PLoS ONE http://dx.plos.org/10.1371/journal.pone.0039825.

Green, A.L. & Bellwood, D.R. 2009. Monitoring functional groups of herbivorous reef fishes as indicators of coral reef resilience – A practical guide for coral reef managers in the Asia Pacific region. IUCN, Gland, Switzerland.

Randall, J.E. 2001. Surgeonfishes of the world. Mutual Publishing and Bishop Museum Press, Hawai'i, Honolulu, Hawaii, 123 pp.

Russell, B., Nanola, C., Choat, J.H., Stockwell, B., McIlwain, J., Clements, K.D., Rocha, L.A., Abesamis, R. & Myers, R. 2012. Acanthurus auranticavus. The IUCN Red List of Threatened Species. Version 2015.2. . Downloaded on 26 June 2015.

Quick Facts

CAAB Code:37437005

Conservation:IUCN Least Concern

Depth:1-20 m

Habitat:Reef associated

Max Size:45 cm SL

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