Troschel's Parrotfish, Chlorurus troschelii (Bleeker 1853)

Other Names: Greenhead Parrotfish

A terminal phase (male) Troschel's Parrotfish, Chlorurus troschelii, at Menjangen Island, Bali, Indonesia. Source: John E. Randall / FishBase. License: CC by Attribution-NonCommercial

Terminal phase males of this rare parrotfish have a bluish-green band curving from the corner of the mouth to below the eye and down to the pectoral-fin base.

Cite this page as:
Bray, D.J. 2017, Chlorurus troschelii in Fishes of Australia, accessed 26 Nov 2022,

Troschel's Parrotfish, Chlorurus troschelii (Bleeker 1853)

More Info


Known to occur in the Australian Territory of Cocos (Keeling) Islands in the eastern Indian Ocean. Elsewhere the species is found in the eastern Indian Ocean, from west Thailand to western and southern Indonesia to central Java and Cocos (Keeling) Islands.
Individuals or pairs inhabit reef slopes and reef lagoons.


Parrotfishes are protogynous hermaphrodites, and change sex from female to male during their life cycle.

Species Citation

Chlorurus troschelii Bleeker 1853, Natuurkundig Tijdschrift voor Nederlandsch Indië 4: 498. Type locality: Jakarta, Java, Indonesia (as Batavia).


Bray, D.J. 2017


Australian Faunal Directory

Troschel's Parrotfish, Chlorurus troschelii (Bleeker 1853)


Allen, G.R. & Erdmann, M.V. 2012. Reef fishes of the East Indies. Perth : Tropical Reef Research 3 vols, 1260 pp. 

Bellwood, D.R. 1994. A phylogenetic study of the parrotfishes family Scaridae (Pisces: Labroidei), with a revision of genera. Records of the Australian Museum, Supplement 20: 1-86

Bellwood, D.R. 2001. Scaridae. pp. 3468-3492 in Carpenter, K.E. & Niem, T.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 6 pp. 3381-4218. 

Bleeker, P. 1853. Diagnostische beschrijvingen van nieuwe of weinig bekende vischsoorten van Batavia. Tiental I–VI. Natuurkundig Tijdschrift voor Nederlandsch Indië 4: 451-516 

Choat, J.H., Carpenter, K.E., Rocha, L.A., Clements, K.D., Russell, B., Myers, R., Lazuardi, M.E., Muljadi, A., Rahardjo, P. & Pardede, S. 2012. Chlorurus troschelii. The IUCN Red List of Threatened Species 2012: e.T190741A17787513. Downloaded on 30 August 2017.

Hobbs, J-P.A., Newman, S .J., Mitsopoulos, G.E.A., Travers, M.J., Skepper, C.L., Gilligan, J.J., Allen, G.R., Choat, H.J. & Ayling, A.M. 2014. Fishes of the Cocos (Keeling) Islands: new records, community composition and biogeographic significance. Raffles Bulletin of Zoology Supplement 30: 203–219

Quick Facts


Conservation:IUCN Least Concern

Depth:5-25 m

Habitat:Reef associated

Max Size:40 cm TL

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Species Maps

CAAB distribution map