Třída: Chondrichthyes - paryby
Řád: Rajiformes - rejnoci
Čeleď: Rajidae - rejnokovití

Synonyma: Sympterygia brevicaudata (Cope, 1877); Psammobatis brevicaudatus Cope, 1877; Psammobatis caudispina Hildebrand, 1946; Psammobatis chilcae Hildebrand, 1946; Psammobatis maculatus Hildebrand, 1946; Psammobatis asper Hildebrand, 1946.

Reference: Cope, E. D. 1877. Synopsis of the cold blooded vertebrata, procured by Prof. James Orton during his exploration of Peru in 1876-77. Proc. Am. Philos. Soc. v. 17: 33-49.