Třída: Chondrichthyes - paryby
Řád: Myliobatiformes - trnuchy
Čeleď: Urolophidae - tlustoocaskovití

Synonyma: Trygonoptera kaiana (Günther, 1880).

Reference: Günther, A. 1880. Report on the shore fishes procured during the voyage of H. M. S. Challenger in the years 1873-1876. In: Report on the scientific results of the voyage of H. M. S. Challenger during the years 1873-76. Zoology. Rept. Challenger Shore Fishes v. 1 (pt 6): 1-82, Pls. 1-32.