Atlantic Torpedo
Torpedo nobiliana
Size: to 6 ft long, 200 lbs., and 220 volts
Habitat: Soft sandy bottoms, from water's edge to 350 ft. Uncommon.
Notes:
Potentially dangerous
Distinguishing characteristics: Round body with a short tail and no stingers. This fish can produce enough electricity to stun a swimmer, but it is usually unaggressive. They are uncommon but deserve mention for the surprise they pack. I have seen unaware divers ( including a PADI "Underwater Naturalist" instructor ) get zapped in the tropics by the smaller ( 40 volts ) electric rays there.