Exotic terrestrial molluscs in BC

Twenty-six species of exotic terrestrial snails and slugs are now known from the province of British Columbia. In addition to this list of species are several others that have been reported but that I do not consider here (misidentifications and unconfirmed accounts).

Family CARYCHIIDAE
Carychium minimum — herald thorn

Family PUPILLIDAE
Lauria cylindracea — chrysalis snail

Family VALLONIIDAE
Vallonia excentrica — Iroquois vallonia
Vallonia pulchella — lovely vallonia

Family TESTACELLIDAE
Testacella haliotidea — earshell slug

Family DISCIDAE
Discus rotundatus — rotund disc

Family ARIONIDAE
Arion circumscriptus — brown-banded arion
Arion distinctus — dark-face arion
Arion hortenis — garden arion
Arion intermedius — hedgehog arion
Arion rufus — chocolate arion
Arion silvaticus — forest arion
Arion subfuscus — dusky arion

Family VITREIDAE
Vitrea contracta — contracted glass-snail

Family OXYCHILIDAE
Aegopinella nitidula — waxy glass-snail
Oxychilus alliarius — garlic glass-snail
Oxychilus cellarius — cellar glass-snail
Oxychilus draparnaudi — dark-bodied glass-snail

Family BOETTGERILLIDAE
Boettgerilla pallens — wormslug

Family LIMACIDAE
Lehmannia valentiana — threeband gardenslug
Limacus flavus — yellow gardenslug
Limax maximus — giant gardenslug

Family AGRIOLIMACIDAE
Deroceras panormitanum — longneck gardenslug
Deroceras reticulatum — grey fieldslug

Family HELICIDAE
Cepaea nemoralis — grovesnail
Cornu aspersum — brown gardensnail