Order Testudines Wagler, 1830 - turtles Suborder Pleurodira Cope, 1864 Family Pelomedusidae Cope, 1868 - African mud terrapins Genus Pelusios Wagler, 1830 Pelusios williamsi Laurent, 1965 - Williams' mud turtle Pelusios williamsi laurenti Bour, 1984 - Ukerewe Island mud turtle