Naso annulatus   (Quoy & Gaimard)  1825) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Yin, Robert

Size: 31.5 cm.

Color: In preserved specimens brownish.

Height 2-2.3, 2.4-2.8 in length with caudal. Head 3.6-3.8, 4.4 in length with caudal. Eye 2.8-3.2, 1.8-2 in snout and somewhat less or more than inter orbital space, which is convex. In young ones there is a bump just before eye, which develops in very large specimens into a horn like protuberance, which is generally directed somewhat obliquely downwards. First dorsal spine longest, as long as distance between corner of mouth and eye, following spines and rays decreasing in size, the last ray equal to half eye. First and second anal spines sub equal, three fourths of eye. Anal similar to dorsal. Caudal slightly emarginate. Two keeled bucklers on each side of caudal peduncle in adults.

Remarks: Values in above description denote proportions.

Synonym (s)
Priodon annulatus Quoy and Gaimard, 1824
Naseus marginatus Cuvier and Valenciennes, 1835
Priodon annularis Cuvier and Valenciennes
Priodon annularis Bleeker, 1852
Naseus annulatus Bleeker, 1855
Naseus annulatus Gunther, 1861
Naseus marginatus Gunther, 1875
Nascus annulatus Macleay, 1881
Monoceros annulatus Seale, 1901
Acanthurus annulatus Fowler and Bean, 1922
Naso marginatus Herre, 1927
Naso annulatus Fowler, 1928
Naso annulatus Fowler and Bean, 1929
Naso annulatus Fowler, 1938

Common Name (s)
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated
Trophic Level:  Primary Consumer
Prey:  Zooplankton


• Lakshadweep INDIA (Record: 2003)

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at -
  • Ohman, M; Rajasuriya, A and Olafsson, E (1997) Reef fish assemblages in north western Sri Lanka: Distribution patterns and influences of fishing practises Enviornmental Biology of Fishes Kluwer Academic Publishers 49 45-61
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Kemp, JM (1998) Zoogeography of the coral reef fishes of the Socotra Archipelago Journal of Biogeography 25 919-933
  • Allen, GR (2005) Reef fishes of northwestern Madagascar RAP Bulletin of Biological Assessment 31 39-48
  • Chabanet, P and Patrick, D (2005) Reef Fish Inventory of Juan De Novas Natural Park (Western Indian Ocean) Western Indian Ocean Journal Marine Sciences 2005 WIOMSA 4 145-162
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, Pune.
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Beaufort, LF and Chapman, WM (1951) The fishes of the Indo-Australian Archipelago A. J. Reprints agency, Karol Bagh, New Delhi 9 484 pp Available at - NIO, Goa

Page last updated on:2010-03-26

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