
Tetronarce is a genus of ray fish, 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 of up to 180 cm TL than Torpedo electric rays species, which usually range from 25 to 80 cm TL.
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Tetronarce is a genus of ray fish, 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 of up to 180 cm TL than Torpedo electric rays species, which usually range from 25 to 80 cm TL.
==Species== There are nine recognized species in this genus: {| class="wikitable sortable" |- ! Image !! Name !! Common name!! Distribution |- |120px || 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 ||Cowley's torpedo ray || around southern Africa, from Walvis Bay, Namibia to Algoa Bay, Eastern Cape, South Africa |- |120px || Tetronarce fairchildi F. W. Hutton, 1872|| New Zealand torpedo|| New Zealand |- | || Tetronarce formosa D. L. Haas & Ebert, 2006 || Taiwan torpedo|| Northwest Pacific: Taiwan. |- | frameless|| Tetronarce macneilli Whitley, 1932 || Shorttail torpedo|| southern Australia from Port Hedland to the Swain Reefs |- |120px || 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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