Tetronarce
Tetronarce is a genus of rays, commonly known as electric rays. They are slow-moving bottom-dwellers capable of generating electricity as a defense and feeding mechanism. Tetronarce species tend to attain a much larger size (up to 180 cm TL) than Torpedo species, which are usually small to moderate sized (range from 25 to 80 cm TL) electric rays.[1]
| Tetronarce | |
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| Tetronarce nobiliana | |
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| Genus: | Tetronarce T. N. Gill, 1862 |
| Species | |
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Nine; see text | |
Species
There are currently nine recognized species in this genus:[1]
| Image | Name | Common name | Distribution |
|---|---|---|---|
 | Tetronarce californica Ayres, 1855 | Pacific electric ray | northeastern Pacific Ocean from Baja California to British Columbia. |
| Tetronarce cowleyi Ebert, D. L. Haas & M. R. de Carvalho, 2015 [2] | Cowley's torpedo ray | around southern Africa, from Walvis Bay, Namibia to Algoa Bay, Eastern Cape, South Africa | |
.jpg) | Tetronarce fairchildi F. W. Hutton, 1872 | New Zealand torpedo | New Zealand |
| Tetronarce formosa D. L. Haas & Ebert, 2006 | Taiwan torpedo | Northwest Pacific: Taiwan. | |
| Tetronarce macneilli Whitley, 1932 | Shorttail torpedo | southern Australia from Port Hedland to the Swain Reefs | |
 | Tetronarce nobiliana Bonaparte, 1835 | Atlantic torpedo | Atlantic Ocean, from Nova Scotia to Brazil in the west and from Scotland to West Africa and off southern Africa in the east |
| Tetronarce puelcha Lahille, 1926 | Argentine torpedo | Argentina, Brazil, and Uruguay. | |
| Tetronarce tokionis S. Tanaka (I), 1908 | Trapezoid torpedo | Japan and Taiwan. | |
| Tetronarce tremens F. de Buen, 1959 | Chilean torpedo | Chile, Colombia, Costa Rica, Ecuador, and Peru. | |
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References
- Carvalho, M.R. de. (2015): Torpedinidae. In : Heemstra, P.C., Heemstra, E. & Ebert, D.A. (Eds.), Coastal Fishes of the Western Indian Ocean. Vol. 1. South African Institute for Aquatic Biodiversity, Grahamstown, South Africa. In press.
- Ebert, D.A., Haas, D.L. & de Carvalho, M.R. (2015): Tetronarce cowleyi, sp. nov., a new species of electric ray from southern Africa (Chondrichthyes: Torpediniformes: Torpedinidae). Zootaxa, 3936 (2): 237–250.
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