Holocentrus violaceus   Bleeker  1853 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Size: 99-172 mm

Color: Purplish brown above, lighter below, with yellowish to pale longitudinal bands along scale rows. A black blotch on upper part of operculum. Spinous dorsal light brownish, the membrane between first two spines slightly darker. Soft dorsal, caudal and anal fins pale yellowish.

Head 2.7-2.8 in standard length, 3.3-3.4 in total length. Depth of body 2.6-2.7 in standard length, 3.2-3.3 in total length. Eye diameter 3.2-3.5 in head, 0.7-0.8 in snout and 0.6 in interorbital space. Nasalia ending in a bifurcate spine in front. 3-4 spines at upper and hind edge of nasal opening. Preorbital with a large downwardly directed spine in front and some backwardly directed spines posterior to it. Maxillary reaching nearly to below middle of eye. Two flat spines on superior part of operculum. Preopercular spine long, equal to eye or slightly longer. Opercular bones strongly serrated. Ventral slightly longer than pectoral fin but shorter than head without snout. Third or fourth dorsal fin spine longest, 1.2-1.3 times eye diameter. Third anal fin spine longer and stronger than fourth, 1.6-1.8 eye diameter.
Number of spines and rays in the dorsal fin: XI, 14; number of spines and rays in the anal fin: IV, 9; number of rays in the pectoral fin: ii, 12; number of spines and rays in the ventral fins: I, 7; number of scale rows along the lateral line: 35-36; number of horizontal scale rows usually counted from origin of the dorsal fin to the lateral line and from anal origin to the lateral line: 3+1+8.

Remarks: Values in above description denote proportions.

Synonym (s)
Holocentrum violaceum Bleeker 1853
Holocentrus violaceus Smith and Smith 1963

Common Name (s)
• Kaduva
Economic Importance and Threats



• Lakshadweep, Chettalatt INDIA (Record: 1980)
• Lakshadweep, Kalpeni INDIA (Record: 1980)
• Lakshadweep INDIA (Record: 1980)
• SEYCHELLES (Record: 1980)

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at - http://www.reefindia.org/
  • 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 - http://www.marinespecies.org

Page last updated on:2009-11-03

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