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Scientific Name: Sphyrna lewini (Griffith & Smith, 1834)
English Name: Scalloped hammerhead, Kidney Headed Shark, Bronze Hammerhead
Local/Bangla Name: Kaunna Hangor (কাউন্না হাঙ্গর), Haturi hangor (হাতুড়ি হাঙ্গর), Gol Kaunna (গোল কাউন্না), Juliamagar (জুলিয়া মাগার)
Labcode: SK1809CB-05
Photo: ABR lab
Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Elasmobranchii
Order: Carcharhiniformes
Family: Sphyrnidae
Description:
Head with prominent central notch along with two more indentations at front of head. First dorsal fin is tall, moderately curved, its origin over or slightly behind pectoral fin insertions. First dorsal fin rear tips in front of pelvic fins origin. Second dorsal fin small with free rear tips almost reaching upper caudal fin origin, its origin directly over or slightly behind middle of anal fin. Pelvic fin rear margins straight. Anal fin base larger than second dorsal fin base with deeply notched posterior margin. Adults with dusky or dark pectoral fin tips, juveniles with dark blotch on lower caudal fin lobe and second dorsal fin tips.
Habitat & Distribution in Bangladesh:
Inshore, offshore and semi-oceanic
waters. Bay of Bengal.
Environment:
Marine, Brackish
Other References:
Hossain MS, Chowdhury SR, Sharifuzzaman SM , Islam MM, Hasan J, Haque MA , Ali MZ, Hoq ME, Mahmud Y (2020) Bangladesh Fisheries Research Institute and Institute of Marine Sciences, University of Chattogram, 512pp.
