Amerianna carinata

Amerianna carinata is native to Australia. The type locality, where the species was originally discovered, is Boyne River in Queensland, Australia. It is also known from New South Wales, as well as the Kai Islands in Indonesia.

Non-native distribution. This species was introduced to island of Java, Indonesia, with its first discovery in 1951. It was found in aquariums at the Bogor Botanical Gardens, leading to the conclusion that the species may have been introduced via the aquarium trade. A. carinata was also introduced to the French Caribbean island territory of Martinique in the 1980's, first discovered in April of 1987 from the Galion River. Though it has now spread across the entirety of the island, its habitat is limited only to sections of riverbanks which do not flood. Its limited population on the island may, in part, be due to the presence of other snails in the family Thiaridae. It is hypothesized that the species was introduced from ornamental aquatic plants.