Order Testudines Wagler, 1830 - turtles Suborder Cryptodira Cope, 1868 Superfamily Kinosternoidea Agassiz, 1857 Family Kinosternidae Agassiz, 1857 - mud and musk turtles Subfamily Kinosterninae Agassiz, 1857 Genus Kinosternon Spix, 1824 Kinosternon leucostomum Duméril & Bibron, 1851 - white-lipped mud turtle 1 Kinosternon leucostomum leucostomum Duméril & Bibron, 1851 - northern white-lipped mud turtle 2 Kinosternon leucostomum postinguinale Cope, 1887 - southern white-lipped mud turtle