Order Testudines Wagler, 1830 - turtles Suborder Cryptodira Cope, 1868 Superfamily Testudinoidea Batsch, 1788 Family Geoemydidae Theobald, 1868 - Asian river turtles Subfamily Geoemydinae Theobald, 1868 Genus Mauremys Gray, 1869 Mauremys nigricans (Gray, 1834) - Chinese red-necked turtle