Longtail Round Stingrays (Urotrygon) is a biological genus in the family Urolophidae (Round Stingrays) and order Myliobatiformes (Stingrays).
Urotrygon chilensis
Urotrygon nana
Urotrygon aspidura
Urotrygon microphthalmum
Urotrygon munda
Urotrygon rogersi
Urotrygon caudispinosus
Urotrygon cimar
Urotrygon peruanus
Urotrygon reticulata
Urotrygon serrula
Urotrygon simulatrix
Urotrygon venezuelae
Urotrygon
Urobatis
Trygonoptera
Urolophus