Rioraja Whitley [G. P.] 1939:254 Fem. Uraptera agassizii Müller & Henle 1841. Type by being a replacement name. Replacement for Uraptera Müller & Henle 1837, preoccupied by Uraptera Billberg 1820 in Lepidoptera. •Synonym of Raja Linnaeus 1758 -- (authors). •Valid as Rioraja Whitley 1939 -- (McEachran & Dunn 1998:280 [ref. 23312], Compagno 1999:489 [ref. 25589], Last & Yearsley 2002:1629 [ref. 26568], Last et al. 2016:365 [ref. 35005]). Current status: Valid as Rioraja Whitley 1939. Arhynchobatidae.