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| image = Fish4345 - Flickr - NOAA Photo Library.jpg | image_width = 240px | image_caption = Lesser electric ray (''N. bancroftii'') | regnum = Animalia | phylum = Chordata | classis = Chondrichthyes | subclassis = Elasmobranchii | ordo = Torpediniformes | familia = Narcinidae | genus = ''Narcine'' | genus_authority = Henle, 1834 | type_species = ''Torpedo brasiliensis'' | type_species_authority = 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.〔Day, Francis. (1889). ''The Fauna of British India including Ceylon and Burma''. London: Taylor and Francis.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Narcine」の詳細全文を読む スポンサード リンク
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