Holocentrus diadema   Lacepede,  1802 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Size: 50-199 mm

Color: Reddish brown with pale yellow longitudinal bands bordered by brown pigments along scale rows. Axil of pectoral often brownish. Spinous dorsal blackish with a median curved white band sometimes broken about the middle of the fin and often the upper margin of the membrane pale white. Anal pale yellowish, membrane between third and fourth anal spine blackish or dusky. Other fins pale yellow.

Head 2.8-3.2 in standard length, 3.5-4.0 in total length. Depth of body 2.9-3.1 in standard length, 3.5-3.7 in total length. Eye diameter about 2.7-2.9 in head, 0.6-0.7 in snout and about 0.7 in interorbital space. Teeth small in bands in jaws, vomer and palatines. Preorbital and suborbital strongly serrated, a spine anteriorly on preorbital. Preopercular spine slightly shorter than snout and extending beyond opercular flap. Opercular bones strongly serrated. Upper opercular spine longer than the lower. Third anal spine stronger and longer than fourth, as long as head without snout. Pectoral shorter than head without snout. Ventral fin longer than pectoral, equal to or shorter than head without snout.
Number of spines and rays in the dorsal fin: XI, 13 (14); number of spines and rays in the anal fin: IV, 8-9; 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: 46-48; 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+7.

Remarks: Values in above description denote proportions.

Synonym (s)
Holocentrus diadema Lacepede, 1803
Holocentrum diadema Day, 1878

Common Name (s)
• Rybarihi
• Kaduva
Economic Importance and Threats

Habitat:  Reef Associated


• Lakshadweep, Agatti INDIA
• Lakshadweep, Andrott INDIA
• Lakshadweep, Kilttan INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep, Suheli INDIA
• Red Sea
• Lakshadweep INDIA
• Lakshadweep, Chettalatt INDIA (Record: 05/01/1987-06/02/1987)
• Lakshadweep, Kilttan INDIA (Record: 05/01/1987-06/02/1987)
• Lakshadweep, Kadamatt INDIA (Record: 05/01/1987-06/02/1987)
• Lakshadweep, Amini INDIA (Record: 05/01/1987-06/02/1987)
• Lakshadweep, Minicoy INDIA (Record: 06/03/1987-01/04/1987)
• Tamil Nadu, Keelakarai INDIA

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 - http://www.marinespecies.org
  • Kumaran, M; Murty, VS and Lalmohan, RS (1989) Resources of ornamental fishes Marine living resources of the union territory of Lakshadweep: An indicative survey with suggestions for development Bulletin of Central Marine Research Institute CMFRI 43 46-64 Available at - http://eprints.cmfri.org.in/8213/1/Bulletin_No_43.pdf
  • Murty, VS (1969) Catalogue of fishes (excluding from the Laccadives) in the reference collections of the Central Marine Fisheries Research Institute Bulletin of Central Marine Research Institute CMFRI, Cochin 10 1-38 Available at - http://eprints.cmfri.org.in/571/1/Bulletin_10.pdf

Page last updated on:2011-05-13

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