Platycephalus rodericensis   Cuvier,  1829 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Size: 204 mm.

Color: Body brownish above, dull white below. Spinous dorsal fin and end of caudal fin blackish; soft dorsal fin with brown spots on rays.

Body depressed; top of head with ridges bearing spines; supraorbital ridges with a moderate number of spines; one spine on anterior orbital rim. Height 8-8.4, 9.7-10 in length with caudal. Head 2.7-3, 3.2-3.6 in length with caudal. Eye 4.5-4.8, 1.4-1.5 in snout. Interorbital space concave, 2.3-2.5 in eye. Maxillary reaching to below anterior part of eye. Villiform teeth in the jaws, in two patches on vomer and in narrow bands on palatines. Anterior nostrils with a flap, posterior nostrils with a short tube. A minute spine between them. Supraorbital ridge low, with a rather strong spine above front border of eye and four or five above posterior half of eye and beyond. Superior postorbital ridge with two spines, several low ridges spreading fan like behind the first of these spines. All bones of head rugose. Inferior postorbital ridge with 4 spines and an elongated one at its posterior end, which is in line with the spines on the anterior 17-20 scales of the lateral line. Suborbital ridge low, with a spine at its beginning before eye, another below middle of eye, and a third below posterior part of eye. Behind this spine the ridge is somewhat deflected and bears three spines, it is flanked here by low denticulated ridge. A long and strong, somewhat curved preopercular spine, reaching on base of pectoral, a short spine superiorly at its base, and two spines below it. Opercle with two diverging ridges, ending in spines on the anterior part of the lower opercular ridge. Opercle and preopercle with more or less rudimentary scales, those along the hind border of the bone normal and ctenoid. Head otherwise without scales. Nine or ten rows of scales before dorsal, 3 or 4 of which, nearest to dorsal, normal, the others rudimentary. First dorsal spine small, connected by a low membrane to the second which is as long as the fourth. Third spine longest, equal to snout and eye, last spine as long as first. Anterior dorsal rays scarcely shorter than longest spines. Anal less deep than second dorsal. Pectorals rounded, about as long as postorbital part of head. Fifth ventral ray simple, fourth longest, equal to postorbital part of head and half eye. Opercle with two diverging ridges, ending in spines; preopercular spine long and strong, reaching on to base of pectoral fin. Two dorsal fins; first dorsal fin with 9 spines and second dorsal fin with 12 soft rays. Anal fin with 12 or 13 soft rays. Caudal fin slightly rounded; lateral line with 73 to 84 scales of which anterior 15 to 20 spiny.

Remarks: Values in above description denote proportions.

Synonym (s)
Platycephalus rodericensis Cupier, 1829
Platycephalus macracanthus Bleeker: Day, 1876
Platycephalus scaber Gunther, 1860
Platycephalus macracanthus Bleeker, 1869
Platycephalus rodericensis Sauvage, 1873
Platycephalus macracanthus Day, 1876
Platycephalus macracanthus Bleeker, 1879
Platycephalus macracanthus Bleeker, 1879
Platycephalus rodericensis Sauvage, 1891
Platycephalus macracanthus Jordan and Seale, 1907
Platycephalus macracanthus Max Weber, 1913
Insidiator macracanthus McCulloch, 1914
Thysanophrys macracanthus Fowler and Bean, 1922
Thysanophrys macracanthus Fowler, 1929
Suggrundus (Repotrudis) macracanthus Whitley, 1932
Suggrundus macracanthus Munro, 1955

Common Name (s)
• Large Spinned Flathead (English)
• Mench (Marathi)
Economic Importance and Threats
Importance:  Commercial



• Maharashtra, Mumbai INDIA
• Tamil Nadu, Chennai INDIA
• Andhra Pradesh, Kakinada INDIA
• Andhra Pradesh, Visakhapatnam INDIA

Literature Source(s)
  • Talwar, PK and Kacker, RK (1984) Commercial sea fishes of India ZSI, Calcutta 997 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Beaufort, LF and Briggs, JC (1962) The fishes of the Indo-Australian Archipelago Pataudi House, Daryaganj, New Delhi 11 481 pp Available at - NIO, Goa
  • Murty, VS (1969) Catalogue of fishes (excluding from the Laccadives) in the reference collections of the Central Marine Fisheries Research Institute Bulletin of Central Marine Research Institute CMFRI, Cochin 10 1-38 Available at -

Page last updated on:2011-06-01

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