Robinson's Seabream, Gymnocranius grandoculis (Valenciennes 1830)

Other Names: Blue-lined Large-eye Bream, Blue-lined Sea Bream, Iodine Bream, Maori Sea Bream, Robinson's Sea Bream

Robinson's Seabream, Gymnocranius grandoculis, from off Nouméa, New Caledonia, 15 September 2004. Source: Jean-Lou Justine / Wikimedia Commons. License: CC by Attribution-ShareAlike

A  golden-brown to yellowish seabream with wavy blue lines and spots on the snout, cheek and gill cover, yellowish-orange fins, an orange margin on the tail, and often dark narrow diagonal bands on the body.

Cite this page as:
Bray, D.J. 2020, Gymnocranius grandoculis in Fishes of Australia, accessed 24 Jun 2024,

Robinson's Seabream, Gymnocranius grandoculis (Valenciennes 1830)

More Info


Yanchep, Western Australia (and possibly further south) to northeast of Townsville, Queensland; also Cocos (Keeling) Islands in the eastern Indian Ocean, and Ashmore and Cartier Reefs in the Timor Sea.
Adults usually inhabit offshore rocky areas and trawl grounds, and occasionally coral reefs and seagrass beds. Juveniles usually occur inshore over muddy areas. 


Feeds mostly on benthic invertebrates and small fishes.


Taken in artisanal fisheries throughout its range, mainly with bottom longlines and bottom trawls. 

Species Citation

Cantharus grandoculis Valenciennes, in Cuvier & Valenciennes1830, Histoire Naturelle des Poissons Vol. 6: 341. Type locality: 


Bray, D.J. 2020


Atlas of Living Australia

Robinson's Seabream, Gymnocranius grandoculis (Valenciennes 1830)


Allen, G.R. 1997. Marine Fishes of Tropical Australia and South-east Asia. Perth : Western Australian Museum 292 pp. 106 pls. 

Allen, G.R. & Smith-Vaniz, W.F. 1994. Fishes of Cocos (Keeling) Islands. Atoll Research Bulletin 412: 1-21 

Allen, G.R. & Swainston, R. 1988. The Marine Fishes of North-Western Australia. A field guide for anglers and divers. Perth, WA : Western Australian Museum vi 201 pp., 70 pls. 

Carpenter, K.E. 2001. Sparidae, Lethrinidae. pp. 2990-3050 in 
Borsa, P., P. Béarez & W.-J. Chen. 2010. Gymnocranius oblongus, a new large-eye bream species from New Caledonia (Teleostei: Lethrinidae). Comptes Rendus Biologies 333(3): 241-247.

Carpenter, K.E., Lawrence, A. & Myers, R. 2016. Gymnocranius grandoculis . The IUCN Red List of Threatened Species 2016: e.T16719605A16722290. Downloaded on 17 February 2020.

Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 5 2791-3379 pp. 

Carpenter, K.E. & Allen, G.R. 1989. FAO Species Catalogue. Emperor fishes and large-eye breams of the world (family Lethrinidae). An annotated and illustrated catalogue of lethrinid species known to date. FAO Fisheries Synopsis. No. 125, Vol. 9. Rome : FAO 118 pp. 

Gilchrist, J.D.F. & Thompson, W.W. 1909. Descriptions of fishes from the coast of Natal. Part 2. Annals of the South African Museum 6(3): 213-279 (described as Dentex robinsoni)

Grant, E.M. 1991. Fishes of Australia. Brisbane : EM Grant Pty Ltd 480 pp. (as Gymnocranius robinsoni)

Hutchins, J.B. 2001. Biodiversity of shallow reef fish assemblages in Western Australia using a rapid censusing technique. Records of the Western Australian Museum 20: 247-270 

Marshall, T.C. 1964. Fishes of the Great Barrier Reef and Coastal Waters of Queensland. Sydney : Angus & Robertson 566 pp. 136 pls. 

Randall, J.E. 2005. Reef and shore fishes of the South Pacific. New Caledonia to Tahiti and the Pitcairn Islands. Honolulu : University of Hawaii Press 707 pp.

Randall, J.E., Allen, G.R. & Steene, R. 1990. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 507 pp. figs. 

Randall, J.E., Allen, G.R. & Steene, R. 1997. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 557 pp. figs. 

Rüppell, W.P.E. 1838. Neue Wirbelthiere zu der Fauna von Abyssinien gehörig. Fische des Rothen Meeres. Frankfurt Vol. 4, pp. 81–148, pls 22–33. (descsribed as Dentex rivulatus)

Sainsbury, K.J., Kailola, P.J. & Leyland, G.G. 1984. Continental Shelf Fishes of Northern and North-Western Australia. Canberra : Fisheries Information Service 375 pp. figs & pls. (as Gymnocranius robinsoni)

Sato, T. 1986. A systematic review of the sparoid fishes of the subfamily Monotaxinae, pp. 602–612 in Uyeno, T., Arai, R., Taniuchi, T. & Matsuura, K. (eds) Indo-Pacific fish biology: proceedings of the second international conference on Indo-Pacific fishes. Ichthyological Society of Japan, Tokyo.

Sih, T.L., Cappo, M. & Kingsford, M.J. 2017. Deep-reef fish assemblages of the Great Barrier Reef shelf-break (Australia). Scientific Reports 7(10886) Open access

Valenciennes, A. in Cuvier, G.L. & Valenciennes, A. 1830. Histoire Naturelle des Poissons. Paris : Levrault Vol. 6 559 pp. pls 141-169. 

Whitley, G.P. 1936. More ichthyological miscellanea. Memoirs of the Queensland Museum 11(1): 23-51 figs 1-6 pl. 4 (described as Paradentex marshalli)

Quick Facts

CAAB Code:37351005

Conservation:IUCN Least Concern

Depth:20-170 m

Habitat:Reef associated

Max Size:80 cm TL

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Species Maps

CAAB distribution map