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

Image copyrights: Ministry of Agriculture and Fisheries, Sultanate of Oman

Size: Max length 17.0 cm TL male/unsexed

Color: Blood red in color and there are a number of narrow silvery white stripes running along the body. A disjunct white band runs horizontally across the spinous dorsal fin. The tips of the dorsal spines are whitish. The rest of the fins are translucent pink

It has an oblong body with a pointed snout. Rough, ctenoid scales cover the body . There is a strong pre-opercular spine and two smaller spines on the operculum. The fins are well developed and have prominent spines. They include a single dorsal fin of 11 spines and 12-14 soft rays. The last dorsal spine is the shortest resulting in a deep notch between the spinous and soft parts of the fin. The anal fin has 4 spines and 8-10 soft rays. The pectoral fins, have 13-14 rays each, and the caudal fin is forked. Eyes are relatively large.

Dioecious, external fertilization, nonguarders, open water/substratum egg scatterers.

Synonym (s)
Adioryx diadema (Lacepede, 1802)
(Senior synonym)
Holocentrus diadema Lacepede, 1802
(Senior synonym)
Holocentre diademe Commerson & Lacepede, 1801
Holocentrum diadema Lacepede, 1802

Common Name (s)
• Crown Squirrelfish (English)
• Barred Squirrelfish (English)
• Rybarihi (Mahl)
• Kaduva (Malayalam)
• Crowned Squirrelfish
• Crown Squirrel
Economic Importance and Threats
Importance:  Commercial
(Fisheries, aquarium, Ornamental fish
Venomous )

Habitat:  Reef Associated, Rocky
Trophic Level:  Secondary Consumer
Prey:  Crabs, shrimps, polychaetes, gastropods, benthic crustaceans
Predator:  Bony fishes (Cephalopholis miniata, Epinephelus fuscoguttatus)


• Red Sea
• Gulf of Aden
• Gulf of Oman
• West Coast INDIA
• Tamil Nadu, Chennai INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Lakshadweep INDIA
• Lakshadweep Islands INDIA (Record: 11/1993-01/1997)

Literature Source(s)
  • Al-Abdessalaam, TZS (1995) Marine species of the Sultanate of Oman p 412 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at -
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Murty, VS (1996) Marine ornamental fishes of India Proceedings of the Seminar on Fisheries - A Multibillion Dollar Industry, Madras CMFRI 23-34 Available at -
  • Murty, VS (2002) Marine ornamental fish resources of Lakshadweep CMFRI Special Publication CMFRI 72 1-134 Available at -
  • Murty, VS (2001) Ornamental fish resources of Lakshadweep Bulletins of the Geological Survey of India 56 103-111 Available at -
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at -
  • Biswas, KP (2009) Fishes around Indian Ocean Reef Fishes Daya publishing house Available at - NIO,Goa

Page last updated on:2011-12-13

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