"* Melania polymorpha E. A. Smith, 1877" . "IUCN3.1" . . "NT" . . . "Melanoides polymorpha is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Thiaridae. This species is endemic to Malawi. Its natural habitat is freshwater lakes. It is threatened by habitat loss."@en . "* Melania tanganyicensis E. A. Smith, 1880" . . . "Melanoides polymorpha"@en . . .