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

Image copyrights: Randall, J.E.

Max. size: 20.0 cm TL

Color: Color pattern remains similar throughout life. Large juveniles and females are mostly black with a single white band and white area below the head to the anus. Males retain the white central band but is more yellow, and develops a second narrow band halfway towards the head. Initial phase white with 3 black bars, the first on upper half of head and anterior body containing a yellow streak at edge of opercle, the second across dorsal fin and ventrally to anus, the third covering most of body and posterior portions of dorsal and anal fins. Terminal male with yellow between black bars. Pectoral fins bluish.

Body shape elongate. Dorsal spines (total): 8 - 8, Dorsal soft rays (total): 13 - 13, Anal spines: 3, Anal soft rays: 11.

Synonym (s)
Julis (Julis) jansenii Bleeker, 1856
Julis jansenii Bleeker, 1856
(Senior synonym)

Common Name (s)
• Jensens Wrasse (English)
• Galihikkae (Mahl)
• Nihola (Malayalam)
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated
Trophic Level:  Secondary Consumer
Prey:  Zoobenthos


• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Rao, DV; Devi, K and Rajan, PT (2000) An account of ichthyofauna of Andaman and Nicobar Islands, Bay of Bengal Occasional paper no 178 Records of the Zoological Survey of India ZSI, Calcutta 1-434 Available at - NCL, Pune
  • James, C; O'Farrell, S; Hamylton, S; Ingwersen, C and Walker, R The coral reef resources of Mu Ko Surin national park, Thailand Coral Cay Conservation Available at -
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, Pune.
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2010-04-26

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