Sharpnose sevengill shark
  • Heptranchias perlo
  • English Name : Sharpnose sevengill shark
  • Local Name : Thundhigu madu miyaru
  • Family : HEXANCHIDAE
  • Order : Hexanchiformes
  • Size : Max. 1.4 m
  • Distinctive Characters: Head with 7 gill slits. Head and snout very narrow. Eyes very large. Single dorsal fin. Large comb-like lower teeth, their inner edges with a few short cusplets but no serrations.
  • Colour: Dark. Black tips to dorsal and upper caudal, especially prominent in young ones.
  • Habitat and Biology: Benthic, on the continental and insular shelves and upper slopes. Depths usually between 27-720 m. But sometimes in shallower water close inshore and down to 1000 m. Ovoviviparous, number of young 9 to 20 per litter.
  • Distribution: Widespread in temperate and tropical waters.
  • Remarks: One specimen of Heptranchias perlo (4.2 kg) was caught by bottom trawl in 240 m near a Thoddo on 22.8.83 by the Norwegian research vessel Dr ‘Fridtjof Nansen’