The non-marine molluscs of Sri Lanka are a part of the molluscan wildlife of Sri Lanka. Naggs et al. (2003) listed 246 land gastropods for Sri Lanka. Ranawana (2006) listed 18 species of non-indigenous land gastropods in Sri Lanka and he added some species to that list. The fauna of Sri Lanka also includes freshwater snails and freshwater bivalves.

Land Snails

Phylum: Mollusca Class: Gastropoda When considering mollusc diversity in Sri Lanka, snails are the major group that can be found within the island. About 246 land snails are known to occur in Sri Lanka, with 83% of endemism. This include 5 endemic and relict land snails. Majority of land snails are pulmonates. Endemic species are highlighted with an asterisk (*).

Subclass: Pulmonata

Family: Acavidae

Family: Achatinidae - Giant land snails

Family: Ariophantidae

Family: Bradybaenidae

Succineidae

Family: Enidae

Family: Camaenidae

Family: Cerastidae

Family: Charopidae

Family: Clausiliidae - Door snails

Family: Corillidae

Family: Diplommatinidae

Family: Endodontidae

Family: Euconulidae - Hive snails

Family: Spiraxidae

Family: Gastrodontidae

Family: Glessulidae

Family: Helicarionidae

Family: Agriolimacidae - Keelback slugs

Family: Planorbidae - Ramshorn snails

Family: Pupillidae

Family: Pupinidae

Family: Pyramidulidae

Family: Streptaxidae

Family: Subulinidae

Family: Cyclophoridae

Family: Vertiginidae - Whorl snails

Family: Viviparidae - River snails

Family: Truncatellidae - Looping snails

Family: Thiaridae - Trumpet snails

Freshwater bivalves