Aethaloperca rogaa   (Forsskal,  1775) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Ministry of Agriculture and Fisheries, Sultanate of Oman

Max. size: 60.0 cm TL

Color: The color is uniformly dark brown to black, with a whitish bar on the belly. The mouth and gill cavity are reddish orange. Young with crescentic white margin to caudal fin and soft-rayed part of dorsal fin edged with white. Outer naked spinous portion of the dorsal fin brownish red.

The body is deep and compressed. Body depth greater than head length, contained 2.1 to 2.4 times in standard length. Dorsal profile of head steep; hump on nape in large specimens; teeth in 3 or 4 rows at sides of lower jaw; preopercle finely serrated; gillrakers on lower limb of first arch 9 plus some rudiments. Dorsal fin with 9 spines and 17 or 18 soft rays; anal fin with 3 spines and 9 soft rays; pelvic fins subequal to pectorals, reaching anus or beyond; caudal fin truncate. Upper rays of pectoral longest. Ventral fin long, reaching beyond anus.

Protogynous, external fertilization, nonguarders. It spawns at any time of the year and matures at about 35 cm SL.

Synonym (s)
Cephalopholis rogaa (Forsskal, 1775)
(Senior synonym)
Perca lunaria Forsskal, 1775
(Junior synonym)
Perca rogaa Forsskal, 1775
(Senior synonym)
Aethaloperca rogan (Forsskal, 1775)
Aethaloperca rogga (Forsskal, 1775)
Aethaloperca rogoa (Forsskal, 1775)
Aetheloperca rogaa (Forsskal, 1775)
Aetholoperca rogaa (Forsskal, 1775)
Athaloperca rogae (Forsskal, 1775)

Common Name (s)
• Karuthachemmali (Malayalam)
• Redmouth Grouper (English)
• Flat Grouper (English)
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated, Coastal
Trophic Level:  Secondary Consumer
Prey:  Benthic crustaceans, stomatopods, bony fish


• Kerala, Melekkel INDIA (Record: 01/2002-04/2002, 09/2002-12/2002) (Depth: 20-28 mts)
• Lakshadweep INDIA
• Karnataka, Netrani Island INDIA (Record: 01/2002-04/2002, 09/2002-12/2002) (Depth: 3-16 mts)
• Kerala, Vizhinjam INDIA (Record: 01/2002-04/2002, 09/2002-12/2002) (Depth: 3-11 mts)
• Kerala, Muttom INDIA (Record: 01/2002-04/2002, 09/2002-12/2002) (Depth: 8-16 mts)
• Andaman and Nicobar Islands, Barren Island INDIA

Literature Source(s)
  • Rao, DV; Devi, K and Rajan, PT (2000) An account of ichthyofauna of Andaman and Nicobar Islands, Bay of Bengal Occasional paper no 178 Records of the Zoological Survey of India ZSI, Calcutta 1-434 Available at - NCL, Pune
  • UNEP World Conservation Monitoring Centre Available at -
  • James, C; O'Farrell, S; Hamylton, S; Ingwersen, C and Walker, R The coral reef resources of Mu Ko Surin national park, Thailand Coral Cay Conservation Available at -
  • Rouphael, T; Turak, E and Jon, B Seagrasses and mangroves of Yemen's Red Sea 41-89
  • Ohman, M; Rajasuriya, A and Olafsson, E (1997) Reef fish assemblages in north western Sri Lanka: Distribution patterns and influences of fishing practises Enviornmental Biology of Fishes Kluwer Academic Publishers 49 45-61
  • Rajan, PT (2003) A field guide to marine food fishes of Andaman and Nicobar Islands ZSI, 234/4, AJC Bose Road, 2nd MSO Building, (13th Floor), Nizam Palace, Kolkata-700 020 260 pp Available at - NCL, Pune
  • Letourneur, Y; Chabanet, P; Durville, P; Taquet, M; Teissier, E; Parmentier, M; Quero, JC and Pothin, K (2004) An updated checklist of the marine fish fauna of Reunion Island, south-western Indian Ocean Cybium 28(3) 199-216
  • Kemp, JM (1998) Zoogeography of the coral reef fishes of the Socotra Archipelago Journal of Biogeography 25 919-933
  • Wall, F (1910) A popular treatise on the common Indian snakes Journal of the Bombay Natural History Society BNHS Part XIII with 65-79
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Al-Abdessalaam, TZS (1995) Marine species of the Sultanate of Oman p 412 Available at - NIO, Goa
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 4 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Sluka, RD and Lazarus, S (2010) Grouper (Pisces: Serranidae) relative abundance and diversity on the west coast of India Marine Biodiversity Records Cambridge University Press 3 1-3 Available at -
  • Rao, DV; Rajan, PT and Devi K (1992) New records of groupers (Family: Serranidae) and cardinal fishes (Family: Apogonidae) from Andaman and Nicobar Islands Journal of the Andaman Science Association Andaman science association, Port Blair 8(1) 47-52 Available at - NIO, Goa

Page last updated on:2011-04-28

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