Thalassoma amblycephalum   (Bleeker,  1856) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Size: 10-16 cm.

Color: Juveniles easily identified by the color pattern and rounded snout. Males become brightly colored and head usually green with a yellow band following on the body.

Height 4.2, 5.3 in length with caudal. Head 3.3, 4.2 in length with caudal. Eye 3.8, 1.2 in snout and slightly less than convex inter orbital space. Mouth small, nearly horizontal. Corner of mouth reaching to below anterior nostril. Teeth pointed, in a single row. Upper jaw with 2 curved canines anteriorly. In the lower jaw the teeth increase in size towards the symphysis, the four anterior ones moderate canines. About 6 scales before dorsal. Dorsal spine short, the first somewhat less, the last somewhat more than eye. Soft dorsal higher than spinous part, the longest ray about twice eye. Spines and rays somewhat produced beyond the fin membrane. Origin of anal below anterior dorsal rays. The first anal spine very small, the third longest, as long as last dorsal spine. Soft anal slightly less deep than soft dorsal. Pectorals half length of snout shorter than head. Ventrals with the first ray slightly produced, equal to snout and eye together. Caudal truncate, the outer rays somewhat produced. Head naked, no scales dorsally on opercle. Initial phase with a broad blackish stripe from snout through eye to caudal-fin base. Dorsal spines (total): 8; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 10-11.

Remarks: Values in above description denote proportions.

Synonym (s)
Julis melanochir Bleeker, 1857
(Junior synonym)
Pseudojulis trifasciatus Weber, 1913
(Junior synonym)
Pseudojuloides trifasciatus (Weber, 1913)
(Junior synonym)
Thalassoma melanochir (Bleeker, 1857)
(Junior synonym)
Thalassoma melanochir Fowler, 1904
(Junior synonym)
Julis amblycephalus Bleeker, 1862
Julis amblycephalus Gunther, 1909
Julis amblycephalus Day, 1877
Thalassoma amblycephalus Fowler, 1928
Thalassoma amblycephalus P. J. Schmidt, 1930

Common Name (s)
• Bluntheaded Wrasse (English)
• Bipeng Hikkae (Mahl)
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated
Trophic Level:  Secondary Consumer
Prey:  Crustacean zooplankton
Predator:  Synodus englemani (fish)


• Lakshadweep, Kavaratti Atoll (Lat: 10.55) (Long: 72.63) INDIA (Record: 01/1991-06/1992)
• Andaman and Nicobar Islands, South Andaman, Neil Island INDIA

Literature Source(s)
  • Anand, PEV and Pillai, NGK (2003) Habitat distribution and species diversity of coral reef fishes in the reefslope of the Kavaratti atoll, Lakshadweep, India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 45(1) 88-98 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Beaufort, LF (1940) The fishes of the Indo-Australian Archipelago A. J. Reprints agency, Karol Bagh, New Delhi 8 508 pp Available at - NIO, Goa
  • (2011) Animal discoveries 2010 Zoological Survey of India 1-107 Available at -

Page last updated on:2011-08-16

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