Hemigaleus balfouri   Day,  1878 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Elasmobranchii
Order:Carcharhiniformes
Family:Hemigaleidae

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Description
Size: 475 mm

Color: Top of head and back slaty grey, lighter below. Fins grey; second dorsal, anal and caudal slightly darker distally.

Body slender, elongate. Head depressed, snout obtusely pointed. Head 4.3 to subcaudal origin. Depth of body 6.8 to subcaudal origin. Eye 9.4 in head. Snout about 3 in head. Mouth with labial folds, crescentic, broader than long. Teeth in jaws oblique, subtriangular, notched externally; those of upper jaw denticulate at base. Nictitating membrane present. Spiracle minute, less than an eye diameter behind eye. Nostrils nearer to mouth than to tip of snout. Cleft of mouth as long as preoral length of head. Gill openings about 1.4 in snout. Dorsal and ventral side of base of caudal notched. Dorsal origin nearer to base of second dorsal than to eye. Ventral insertion nearer to anal insertion than to base of pectoral. Anal origin somewhat behind that of second dorsal. Height of first dorsal less than ¾ of head. Pectoral longer than height of first dorsal. Height of second dorsal about half length of head. Height of anal slightly less than that of second dorsal.

Remarks: Values in above description denote proportions.


Synonym (s)
Hemigaleus balfouri Day, 1878
Hemigaleus balfouri Munro, 1955

Common Name (s)
• Miyaru
Economic Importance and Threats

Ecology

Biogeography


• Lakshadweep, Minicoy INDIA
• Andhra Pradesh, Waltair INDIA
• SRI LANKA
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • 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 - http://www.marinespecies.org
  • 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 - http://eprints.cmfri.org.in/571/1/Bulletin_10.pdf
  • Biswas, KP (2009) Fishes around Indian Ocean Coastal Fishery Resources in Countries Bordering Indian Ocean Daya publishing house Available at - NIO,Goa

Page last updated on:2012-01-17

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