Order Testudines Wagler, 1830 - turtles Suborder Pleurodira Cope, 1864 Family Chelidae Gray, 1825 Subfamily Chelinae Gray, 1825 Genus Acanthochelys Gray, 1873 Acanthochelys radiolata (Mikan, 1820) Iverson, 1986 - Brazilian radiolated swamp turtle