Eusphyra blochii   (Cuvier,  1817) (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Elasmobranchii
Order:Carcharhiniformes
Family:Sphyrnidae

Image copyrights: Harris, M

Description
Size: Max length 186 cm TL male/unsexed

Color: Grey or grey-brown above, paler below.

Body elongate and compressed. Head shaped like a broad arrowhead or a pair of aircraft wings in dorsal or ventral view, tremendously expanded laterally and relatively narrow from front to back, with width across head 2/5 to 1/2 of total length; anterior contour of head almost V-shaped in young but with lateral wings of head becoming transverse in adults; a shallow, but distinct indentation at the midline of held and a very broad, shallow indentation opposite each nostril, the edge of which has a row of low bump; nostrils greatly elongated, wider than mouth, with strong prenarial grooves anteromedial to their incurrent apertures; posterior margins of eyes opposite or behind front of mouth; teeth triangular, deeply notched distally, with relatively narrow oblique cusps and unserrated edges. First dorsal fin very high, strongly falcate; second dorsal fin small and low, less than a third of height of first, with a greatly elongated inner margin nearly or quite twice the fin height, a free rear tip that nearly or quite reaches upper caudal fin origin, and a shallowly concave posterior margin; pelvics with posterior margin nearly straight; anal fin base about 1/3 longer than second dorsal fin base.

Dioecious, internal (oviduct) fertilization, internal live bearers. Viviparous, placental, with 6 to 25 in a litter after a gestation period of 8-11 months. Size at birth between 32 and 45 cm TL.


Synonym (s)
Cestracion blochi (Cuvier, 1816)
(Senior synonym)
Sphyrna blochii (Cuvier, 1816)
(Senior synonym)
Zygaena blochii Cuvier, 1816
(Senior synonym)
Zygaena laticeps Cantor, 1837
(Junior synonym)
Zygaena latycephala van Hasselt, 1823
(Junior synonym)
Eusphyrna blochi (Cuvier, 1816)
(Misspelling)
Eusphyrna blochii (Cuvier, 1816)
(Misspelling)

Common Name (s)
• Arrow Headed Hammer Head (English)
• Arrowhead (English)
• Slender Hammerhead (English)
• Winghead Shark (English)
• Kanar (Gujarati)
• Kaner (Gujarati)
• Kannar (Gujarati)
• Kebithatte (Kannada)
• Khan Mushi (Kannada)
• Chetta Sravu (Malayalam)
• Kahnakodi (Malayalam)
• Kannan Kodi (Malayalam)
• Koman Sorrah (Tamil)
• Kama Sorrah (Telugu)
• Sappa Sorrah (Telugu)
• Hammer head shark
• Julio (Gujarati)
• Zori (Marathi)
• Kanar (Marathi)
• Kebichatte (Kannada)
• Kannankodi (Malayalam)
• Komban Sorrah (Tamil)
• Sappu Sorrah (Telugu)
Economic Importance and Threats
Importance:  Commercial
(Fisheries, utilized fresh for human consumption; livers yield a high-potency vitamin oil; and offal is probably used for fishmeal.)

Ecology
Habitat:  Bentho Pelagic, Coastal
Trophic Level:  Tertiary Consumer
Prey:  Small teleost fishes, crustaceans and cephalopods
IUCN Status:  NearThreatened

Biogeography


• Kerala, Kochi INDIA (Record: 2000-2002)
• INDIA
• INDONESIA
• SRI LANKA
• PAKISTAN
• BANGLADESH
• Andaman and Nicobar Islands INDIA
• Gujarat INDIA
• East Coast INDIA

Literature Source(s)
  • Compagno, LJV; Last, PR; Stevens, JD and MNR, Alava (2005) Checklist of Philippine Chondrichthyes CSIRO Marine Laboratories 104 pp Available at - NCL, Pune
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Joshi, KK; Balachandran, K and Raje, SG (2008) Changes in the shark fishery at Cochin Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 50(1) 103-105 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
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 5 Available at - http://www.fao.org/docrep/009/ad468e/ad468e00.HTM
  • Raje, SG; Sivakami, S; Mohanraj, G; Manoj Kumar, PP; Raju, A and Joshi, KK (2007) An atlas on the Elasmobranch fishery resources of India CMFRI Special publication CMFRI, Cochin, India. 95 253pp Available at - http://eprints.cmfri.org.in/4056/1/Special_Publn_95.pdf
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 Available at - NIO,Goa
  • Kizhakudan, SJ; Nair, KVS and Zala, MS Demersal Finfish Resources of Gujarat Sustainable fisheries development: Focus on Gujarat 57-66 Available at - http://eprints.cmfri.org.in/6060/
  • 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 - eprints.cmfri.org.in/3975/1/Special_Publication_No_12_Revised.pdf

Page last updated on:2011-10-10

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