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Urotrygon
''Urotrygon'' is a genus of American round stingrays. The last two species were described in 1988. ==Species== There are currently thirteen recognized species in this genus: * ''Urotrygon aspidura'' D. S. Jordan & C. H. Gilbert, 1882 (Spiny-tail round ray) * ''Urotrygon caudispinosus'' Hildebrand, 1946 (Spine-tailed round ray) * ''Urotrygon chilensis'' Günther, 1872 (Chilean round ray) * ''Urotrygon cimar'' López S. & W. A. Bussing, 1998 (Denticled roundray) * ''Urotrygon microphthalmum'' Delsman, 1941 (Smalleyed round stingray) * ''Urotrygon munda'' T. N. Gill, 1863 (Munda round ray) * ''Urotrygon nana'' Miyake & McEachran, 1988 (Dwarf round ray) * ''Urotrygon peruanus'' Hildebrand, 1946 (Peruvian stingray) * ''Urotrygon reticulata'' Miyake & McEachran, 1988 (Reticulate round ray) * ''Urotrygon rogersi'' D. S. Jordan & Starks, 1895 (Roger's round ray) * ''Urotrygon serrula'' Hildebrand, 1946 (Saw-spined round ray) * ''Urotrygon simulatrix'' Miyake & McEachran, 1988 (Fake round ray) * ''Urotrygon venezuelae'' L. P. Schultz, 1949 (Venezuela round stingray)
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「Urotrygon」の詳細全文を読む
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