Acanthurus aliala   Lesson  1831 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Size: 50 mm

Color: Brownish, lighter below, sides of body sometimes with five brown cross bars; a white area across lower jaw. Fins pale; dorsal, anal and caudal darker distally.

Head 3.4 in standard length, 4.2 in total length. Depth of body 1.6 in standard length, 2.0 in total length. Eye diameter 2.7 in head, a little less than snout and equal to interorbital space. Dorsal profile of snout concave. Corner of mouth nearer to hind border of preopercle than to eye. Last dorsal fin spine longest, about 1.4 eye diameter. Third anal fin spine about 1.2 eye diameter. Soft dorsal and anal rounded. Pectoral fin slightly longer than head. Ventral fin as long as snout and eye together.
Number of spines and rays in the dorsal fin: IX, 29; number of spines and rays in the anal fin: III, 27; number of rays in the pectoral fin: ii, 14; number of spines and rays in the ventral fin: I, 5.

Remarks: Values in above description denote proportions.

Synonym (s)
Acanthurus aliala Lesson 1830
Acanthurus glaucopareius Cuvier and Valenciennes 1835

Common Name (s)
Economic Importance and Threats



• Lakshadweep, Agatti INDIA (Record: 1980)
• Lakshadweep INDIA (Record: 1980)

Literature Source(s)
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

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