Platyrhinidae - Thornbacks

The Platyrhinidae are a family of rays, commonly known as thornbacks due to their dorsal rows of large thorns. They resemble guitarfishes in shape. Though traditionally classified with stingrays, molecular evidence suggests they are more closely related to electric rays in the order Torpediniformes.

Genus

Platyrhina J. P. Müller & Henle, 1838
Platyrhina hyugaensis Iwatsuki, Miyamoto & Nakaya, 2011 (Hyuga fanray)
Platyrhina sinensis Bloch & J. G. Schneider, 1801 (fanray)
Platyrhina tangi Iwatsuki, J. Zhang & Nakaya, 2011 (yellow-spotted fanray)

Genus

Platyrhinoidis Garman 1881
Platyrhinoidis triseriata D. S. Jordan & Gilbert, 1880 (thornback guitarfish)