Synonyms: Raja agassizi, Raja agassizii, Raja (Rioraja) agassizi, Raja (Uraptera) agassizi, Rioraja agassizi, Uraptera agassizii
Common name: Rio skate
Original description species: (Müller & Henle, 1841)
Genus: Rioraja Whitley, 1939
Family: Arhynchobatidae Fowler, 1934
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii