Electric ray

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For the fictional energy weapon, see raygun.

Electric rays
Torpedo fuscomaculata
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Subclass: Elasmobranchii Superorder: Batoidea Order: Torpediniformes
Families
Narcinidae Torpedinidae

Electric rays (order Torpediniformes) are fish that have a rounded body and a pair of organs capable of producing an electric discharge, varying from as little as 8 volts to up to 220 volts depending on the species, which is used to stun or kill prey. There are 69 species in four families. [1]

Perhaps the most known members are those of the genus Torpedo, also called crampfish and numbfish, after which the device called a torpedo is named. The name comes from the Latin "torpere", to be stiffened or paralyzed, referring to the effect on someone who handles or steps on a living electric ray.

Torpedo rays are excellent swimmers. Their round disk shaped bodies allow them to remain suspended in the water or roam for food with minimal swimming effort.

The electric ray's grey colour provides a good cover and makes it hard to distinguish it from the sandy ocean bottom.

[edit] Some electric rays

• Atlantic torpedo ray, Torpedo nobiliana
• Pacific electric ray, Torpedo californica
• Lesser electric ray, Narcine brasiliensis
• Blind electric ray, Typhlonarke aysoni

[edit] See also

• Electric fish

[edit] External links

• electric ray -- Britannica Concise Encyclopedia Online Article
• List of Species called "electric ray"