 They have also been introduced on the islands of the Lesser Antilles.The African mud turtles range from being small in size, only carapace length for adult "Pelusios nanus", to moderately large, for adult "Pelusios sinuatus", while the large majority of species fall between carapace length.The carapaces are oblong, moderately high-domed, and the plastrons are large and hinged which is what distinguishes them from the "Pelomedusa".