Narcine

Narcine
Temporal range: Eocene–Present[1]
Lesser electric ray (N. bancroftii)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Torpediniformes
Family: Narcinidae
Genus: Narcine
Henle, 1834
Type species
Torpedo brasiliensis
Olfers, 1831
Synonyms

Cyclonarce Gill, 1862
Gonionarce Gill, 1862
Narcinops Whitley, 1940
Syrraxis Bonaparte (ex Jourdan), 1841

Narcine is a genus of small electric rays in the family Narcinidae.

Description

Narcine species have a rounded pectoral fin disc and two dorsal fins, the first usually smaller than the second and placed behind the pelvic fin bases. The tail is longer than the disc and has a lateral fold. The spiracles are close behind the eyes; the nasal flaps are merged into a flap in front of the mouth. The teeth are nearly flat, with a central point.[2]

Species

There are currently 20 recognized species in this genus:[3]

See also

References

  1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560.
  2. Day, Francis. (1889). The Fauna of British India including Ceylon and Burma. London: Taylor and Francis.
  3. Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Narcine in FishBase. December 2012 version.
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