The blind electric ray, blind legged torpedo, or numbfish, (Typhlonarke aysoni), is a numbfish of the genus Typhlonarke, found around New Zealand from Cook Strait southwards on the continental shelf, at depths of between 100 and 900 metres. Its length is between 15 to 30 centimetres. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subkingdom Parazoa Porifera (sponges) Subkingdom Agnotozoa Placozoa Orthonectida Rhombozoa Subkingdom Metazoa Radiata Cnidaria Ctenophora - Comb jellies Bilateria Protostomia Acoelomorpha Platyhelminthes - Flatworms Nemertina - Ribbon worms Gastrotricha Gnathostomulida - Jawed worms Micrognathozoa Rotifera - Rotifers Acanthocephala Priapulida Kinorhyncha Loricifera Entoprocta Nematoda - Roundworms Nematomorpha - Horsehair worms Cycliophora Mollusca - Mollusks Sipuncula - Peanut worms Annelida - Segmented... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders See text. ... Families Narcinidae Torpedinidae If you came here looking for information about a fictional energy weapon, see raygun. ... Genera Benthobatis Crassinarke Diplobatis Discopyge Heteronarce Narcine Narke Temera Typhlonarke See text for species. ... In biology, binomial nomenclature is the formal method of naming species. ... Wikipedia does not have an article with this exact name. ... A view of from the summit of Mount Victoria, Wellington - Cook Strait stretches to the right (west). ...  Sediment  Rock  Mantle The continental shelf is the extended perimeter of each continent, which is covered during interglacial periods such as the current epoch by relatively shallow seas (known as shelf seas) andbbccvcnccccccccccccccccccccccccvvvvvvvvvvvvvvcggggggggggggggggyutu7ti8yukiyuiyutuiyuiytui gulfs. ...

The blind electric ray is a very small poorly-known electric ray with the typical round body shape, small fleshy tail, one dorsal fin, and almost useless eyes. A large part of the front of the body is taken up with modified muscle organs that store up electrical charge and delivery it to stun prey when needed. This mechanism can also be used for navigation and prey detection in dark or murky water. Families Narcinidae Torpedinidae hi Electric rays (order Torpediniformes) are fish that have a rounded body and a pair of organs capable of producing an electric discharge, which is used to stun or kill prey. ... Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ...

The blind electric ray is dark brown in colour, and is potentially vulnerable to fisheries activity since its known distribution coincides with major trawl fishery grounds. However, recent marine sanctuaries around NZ provide some safe havens. Its distribution and status is uncertain due to confusion with the similar oval electric ray, Typhlonarke tarakea. There is therefore inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distribution and/or population status.

References

• Typhlonarke aysoni (TSN 564470). Integrated Taxonomic Information System. Accessed on 18 April 2006.
• Typhlonarke aysoni. FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
• Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8