Synonyma
Toshia Whitley, 1933 ― Dasyatis fluviorum Ogilby, 1908
Whitley, G. P. 1933. Studies in ichthyology. No. 7. Records of the Australian Museum v. 19 (no. 1): 60-112, Pls. 11-15.
Urolophoides Lindberg in Soldatov & Lindberg, 1930 ― Urolophoides giganteus Lindberg, 1930
Soldatov, V. K. & Lindberg, G. U. 1930. A review of the fishes of the seas of the Far East. Izvestiya TINRO, Moskva v. 5: i-xlvii+1-576, Pls. 1-15.
Typový druh
Trygon bennettii Müller & Henle, 1841..
Původní popis
Müller, J. & Henle, F. G. J. 1838. On the generic characters of cartilaginous fishes, with descriptions of new genera. Magazine of Natural History [E. Charlesworth, ed.] (n.s.) v. 2 (art. 7): 33-37; 88-91.
Použitá literatura
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2026. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.