Spot-tail Wide-eye Flounder, Engyprosopon grandisquama (Temminck & Schlegel 1846)

Other Names: Largescale Flounder, Mottled Wide-eyed Flounder, Spiny-head Flounder, Spiny-headed Flounder, Spotted-tail Flounder

A Spot-tail Wide-eye Flounder, Engyprosopon grandisquama, at Puerto Galera, Philippines. Source: Paddy Ryan / License: All rights reserved

An oval-shaped flounder with two distinct black blotches on the caudal fin, between the 3rd and 4th rays from the upper and lower margins of the fin respectively; males with a dark greyish underside.
Video of a Striate Anglerfish (aka Hairy Frogfish) eating a Spot-tail Wide-eye Flounder.

Cite this page as:
Dianne J. Bray, Engyprosopon grandisquama in Fishes of Australia, accessed 18 Jan 2021,

Spot-tail Wide-eye Flounder, Engyprosopon grandisquama (Temminck & Schlegel 1846)

More Info


Recorded in Australia from Fremantle, WA, around the tropical north to east of Montague Island, NSW. Found elsewhere in the tropical, Indo-west Pacific.

Inhabits sandy and muddy areas on the continental shelf.


Meristic features: Dorsal fin 79-87; Anal fin 59-65. Body deep, depth more than 50%SL. Pectoral fin short, equal to or less than head length.


Carnivore - feeds on crustaceans, polychaete worms, and other benthic fauna.


A study in Japan found that males were territorial and maintained mating territories during the spawning season. Some males even occupied the same territory until the next spawning season.


Commercially fished in parts of its range.

Species Citation

Rhombus grandisquama Temminck & Schlegel, 1846, Fauna Japonica: 4(10): 183, pl. 92(3-4). Type locality: Nagasaki, Japan. 


Dianne J. Bray

Spot-tail Wide-eye Flounder, Engyprosopon grandisquama (Temminck & Schlegel 1846)


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

Amaoka, K., E. Mihara & J. Rivaton. 1993. Pisces, Pleuronectiformes: Flatfishes from the waters around New Caledonia. A revision of the genus Engyprosopon. p. 377-426. In A. Crosnier (ed.) Résultats des Campagnes MUSORSTOM, Volume 22. Mém. Mus. natn. Hist. nat. (158): 377-426.

Fukui, A. 1997. Early ontogeny and systematics of Bothidae, Pleuronectoidei. Bulletin of Marine Science 60(1): 192-212.

Gloerfelt-Tarp, T. & P.J. Kailola. 1984. Trawled fishes of southern Indonesia and northwestern Australia. Australian Development Assistance Bureau, Australia, Directorate General of Fishes, Indonesia, and German Agency for Technical Cooperation, Federal Republic of Germany. 407 pp.

Hensley, D.A. 1986. Bothidae. p. 854-863. In M.M. Smith & P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.

Hensley, D.A. & K. Amaoka. 2001. Bothidae. Lefteye flounders. p. 3799-3841. In K.E. Carpenter & V.H.  Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4. FAO, Rome.

Johnson, J.W. 2010. Fishes of the Moreton Bay Marine Park and adjacent continental shelf waters, Queensland, Australia. pp. 299-353 in Davie, P.J.F. & Phillips, J.A. Proceedings of the Thirteenth International Marine Biological Workshop, The Marine Fauna and Flora of Moreton Bay. Memoirs of the Queensland Museum 54(3)

Kuiter, R.H. 1993. Coastal fishes of south-eastern Australia. University of Hawaii Press. Honolulu, Hawaii. 437 pp.  (as E. spiniceps)

Macleay, W.J. 1881. Descriptive catalogue of the fishes of Australia. Part 3. Proceedings of the Linnean Society of New South Wales 1 6(1): 1-138 pls 1-2 (as Rhomboidichthys spiniceps).

Manabe,H, M. Ide, A. Shinomiya & T. Sunobe. 2005. Long-term territoriality and mate acquisition in the lefteye flounder Engyprosopon grandisquama. Ichthyological Research 52(1): 90-93.

Randall, J.E. 2005.Reef and shore fishes of the South Pacific. New Caledonia to Tahiti and the Pitcairn Islands. University of Hawaii Press, Honolulu, Hawaii. 720 pp.

Russell, B.C. & Houston, W. 1989. Offshore fishes of the Arafura Sea. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 6(1): 69-84

Sainsbury, K.J., Kailola, P.J. & Leyland, G.G. 1985. Continental Shelf Fishes of Northern and North-Western Australia. Canberra : Fisheries Information Service 375 pp. figs & pls.

Temminck, C.J. & Schlegel, H. 1846. Pisces. 173-188 pls 88-95 in Siebold, P. Fr de (ed.). Fauna Japonica. Leyden : Apud Arnz & Socios Vol. 4(10).

Travers, M.J. & I.C. Potter. 2002. Factors influencing the characteristics of fish assemblages in a large subtropical marine embayment. J. Fish Biol. 61(3): 764-784.

Quick Facts

CAAB Code:37460012

Depth:7-200 m

Habitat:Sandy & muddy bottoms

Max Size:15 cm TL

Species Image Gallery

Species Maps

CAAB distribution map