Grammoplites suppositus   (Troschel,  1840) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, JE

Size: 20-25 cm.

Color: Brownish above, whitish below, fins more or less dusky; first dorsal fin with a large black blotch posteriorly; upper pectoral rays, upper caudal rays and second dorsal rays with dark spots.

Body elongated with head strongly depressed. Top of head with strong spines and bony ridges; preopercular spine usually 3; the lower two small, the upper long, reaching beyond margin of opercular membrane; gillrakers on first arch 1 plus 8; margin of interopercular membrane entire. Second dorsal fin with 12 soft rays; anal fin usually with 13 rays; pectoral rays 21 to 23, usually 22 to 23. Pored lateral line scales 51 to 55, usually 53; all bearing spines except for an occasional few on the posterior part of the body. Scales rows slanting downward and backward above lateral line about the same as the number of pored lateral line scales.

Synonym (s)
Grammoplites scaber (non Linnaeus, 1758)
(Misapplied Name)
Platycephalus maculipinna Regan, 1905
(Junior Synonym)
Platycephalus suppositus Troschel, 1840
(Senior Synonym)

Common Name (s)
• Regan's Flathead (English)
• Spotfin flathead (English)
Economic Importance and Threats
Importance:  Commercial
(Caught with bottom trawls.)

Habitat:  Benthic, Demersal, Sandy, Muddy


• Tamil Nadu, Chennai Coast INDIA
• West Coast INDIA
• Kerala INDIA
• Arabian Sea (Lat: 12.33) (Long: 74.2) INDIA (Record: 02/1985-06/1987) (Depth: 125 mts)
• Andhra Pradesh, Off Visakhapatnam (Lat: 17.73) (Long: 83.55) INDIA (Record: 04/1989-03/1990) (Depth: 50 mts)

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at -
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 3 Available at -
  • Bijukumar, A and Deepthi, GR (2009) Mean trophic index of fish fauna associated with trawl bycatch of Kerala, southwest coast of India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 51(2) 145 - 154 Available at - NIO, Goa
  • Balachandran, K and Nizar, MA (1990) A check list of fishes of the Exclusive Economic Zone of India collected during the research cruises of FORV Sagar Sampada Proceedings of the first workshop on scientific results of FORV Sagar Sampada CMFRI, Cochin 305-324 Available at -
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at -
  • Sujatha, K (1995) Finfish constituents of trawl by-catch off Visakhapatnam Fishery Technology Society of Fisheries Technologists 32(1) 56-60 Available at - NIO, Goa

Page last updated on:2011-12-29

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