Strongylura incisa   (Valenciennes,  1846) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Honeycutt, K.

Size: Max length 100.0 cm FL (male/unsexed); common length 60.0 cm SL (male/unsexed).

Color: Light brownish above, lighter below with a dark longitudinal lateral band. Fins pale yellowish, bases of pectoral rays slightly dark.

Head 2.4-2.7 in standard length, 2.6-2.95 in total length. Depth of body 15.0-18.5 in standard length, 16.8-20.5 in total length. Width of body 1.3 in its depth. Eye diameter 7.3-9.0 in snout, 2.4-2.7 in postorbital length of head, 4.2-5.3 in distance between origin of ventral and origin of anal and about 1.2 in interorbital space. Postorbital length of head 1.8-2.1 in distance between origin of ventral fin and origin of anal fin. Canines of upper jaw directed straight downward. Origin of dorsal fin above second branched ray of anal fin. Pectoral fin about ¼ eye diameter longer than postorbital length of head. Ventral fin ½ eye diameter shorter than postorbital length of head. Origin of ventral fin nearer to hind border of eye than to base of caudal fin. Lateral line along ventro-lateral edge of body and ending near caudal fin base without raised keel. Caudal fin with concave margin.
Number of spines and rays in the dorsal fin: ii, 17-18; number of spines and rays in the anal fin: ii, 20; number of rays in the pectoral fin: i, 10-11; number of spines and rays in the ventral fins: i, 5; number of scale rows along the lateral line: 165-180; number of horizontal scale rows usually counted from origin of the dorsal fin to the lateral line and from anal origin to the lateral line: 13-14+1+5-6.

Dioecious, external fertilization, nonguarders, open water/substratum egg scatterers. Oviparous. Eggs may be found attached to objects in the water by tendrils on the egg's surface.

Remarks: Values in above description denote proportions.

Synonym (s)
Belone incisa Valenciennes, 1846
(Senior synonym)
Belone leiuroides Bleeker, 1851
(Junior synonym)
Rhaphiobelone robusta Schultz, 1953
(Junior synonym)
Strongylura incisa (Valenciennes, 1846)
(Senior synonym)
Tylosurus terebra Whitley, 1927
(Junior synonym)
Belone incisa Cuvier and Valenciennes, 1846
Strongylura incisa Jones and Kumaran, 1965
Tylosurus incisus Weber and de Beaufort, 1922

Common Name (s)
• Dethuntholi (Mahl)
• Keran (Malayalam)
• Oola (Malayalam)
• Garfish
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated
Trophic Level:  Tertiary Consumer
Prey:  Finfish, bony fish


• Lakshadweep, Agatti INDIA
• Lakshadweep, Bangaram INDIA
• Lakshadweep, Kavaratti INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at -
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, Pune.
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean; (Fishing area 51). FAO, Rome 1 Available at -
  • Jones, S. (1969) Catalogue of fishes from the Laccadive Archipelago in the reference collections of the Central Marine Fisheries Research Institute. Bulletin of Central Marine Research Institute CMFRI, Cochin 8 1-35 Available at -
  • Jones, S and Kumaran, M (1965) New records of fishes from the seas around India - Part II Journal of Marine Biological Association of India Marine Biological Association of India 7(1) 108-123 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 -

Page last updated on:2011-10-13

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