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 Acavus haemastoma* Acavus phoenix* Acavus superbus* Oligospira polei* Oligospira skinneri* Oligospira waltoni* Family: Achatinidae - Giant land snails Achatina fulica Family: Ariophantidae Cryptozona bistrialis Cryptozona ceraria* Cryptozona chenui* Cryptozona Juliana* Cryptozona novella* Cryptozona semirugata Euplecta acuducta Euplecta albnonata Euplecta binoyaensis* Euplecta colletti* Euplecta concavospira* Euplectu emiliana* Euplecta gardeneri* Euplecta hyphasma* Euplecta indica Euplecta isabellina* Euplecta laevis* Euplecta lankaensis* Euplecta layardi* Euplecta neglecta* Euplecta partita* Euplecta phidias* Euplecta prestoni* Euplecta rosamonda* Euplecta scobinoides* Euplecta semidecussata Euplecta subopaca* Euplecta trimeni* Euplecta turritella Euplecta travancoricii = Euplecta praeeminens Euplecta verrucula* Macrochlamys mdica Macrochlamys kandiensis* Macrochlamys neaps* Macrochlamys perfucata* Macrochlamys tratanensis* Macrachlmys umbrina* Macrachlmy vilipensa Macrochlamys woodiana Microcystina bintennensis* Microcystina lita* Mariaella dussumieri Ratnadvipia irradians* Ratnadvipia karui* Ravana politissima* Sitala operiens* Sitala phyll.ophila* Sitala pyramidalis* Satiella membranacea* Family: Bradybaenidae Bradybaena similaris Succineidae Succinea ceylanica Family: Buliminidae Mirus panos* Mirus proletaria* Mirus stalix* Family: Camaenidae Beddomea albizonatus* Beddomea ceylanicus* Beddomea intermedius* Beddomea frifasciatus* Trachia fallaciosa Trachia vittata Landouria radleyi* Family: Cerastidae Rachis punctatus Rhachistia adumhratus* Rhachistia pulcher Family: Charopidae Ruthvenia biciliata* Ruthvenia caliginosa* Ruthvenia clathratula* Thysanota elegans* Thysanota eumita* Thysanota hispida* Family: Clausiliidae - Door snails Phaedusa ceylanica* Family: Corillidae Corilla adamsi* Corilla beddomeae * Corilla carabmata* Corilla colletti* Corilla erronea* Corilla fryae* Corilla giidei* Corilla humberti* Corilla lesleyae* Corilla odontophora* Family: Diplommatinidae Nicida catathymia* Nicida ceylamca* Nicida delectabilis* Nicida lankaensis* Nicida pedronis* Nicida prestomi* Family: Endodontidae Philalanka circumsculpta* Philalanka depressa* Philalanka edithae* Philalanka lamcabensis* Philalanka liratula* Philalanka mononema* Philalanka secessa* Philalanka sinhila* Philalanka thwaitesi* Philalanka trifilosa* Family: Euconulidae - Hive snails Eurychlamys layardi* Eurychlamys regulala* Eurychltiniys winifredae* Family: Ferussaciidae Digoniaxis cingalensis* Family: Gastrodontidae Zonitoides arboreus Family: Glessulidae Glessula capillacea Glessula ceylanica* Glessula collettae* Glessula deshayesi Glessula fulgens* Glessula inornata*