Introduced species

Non-native land snails and slugs in Canada

The following list is based on the recently published Identifying Land snails and Slugs in Canada: Introduced species and Native Genera (Grimm, Forsyth, Schueler & Karstad, 2010). Species not included in that publication are marked with an asterisk (*).

Family Ellobiidae
Carychium minimum Müller 1774: Herald Thorn
Carychium tridentatum (Risso 1826): Dentate Thorn *

Family Succineidae
Oxyloma pfeifferi (Rossmässler 1835): Pfeiffer Ambersnail
Succinea putris (Linnaeus 1758): European Ambersnail
Succinella oblonga (Draparnaud 1801): Small Ambersnail

Family Lauriidae
Lauria cylindracea (Da Costa 1778): Chrysalis Snail

Family Valloniidae
Vallonia excentrica Sterki 1893: Iroquois Vallonia [native but introduced to BC]
Vallonia pulchella (Müller 1774): Lovely Vallonia [native but introduced to BC]

Family Ferussaciidae
Cecilioides acicula (Müller 1774): Blind Awlsnail

Family Testacellidae
Testacella haliotidea Draparnaud 1801: Ear-shell Slug

Family Discidae
Discus rotundatus (Müller 1774): Rotund Disc

Family Oxychilidae
Aegopinella nitidula (Draparnaud 1805): Waxy Glass-snail
Oxychilus alliarius (Miller 1822): Garlic Glass-snail
Oxychilus cellarius (Müller 1774): Cellar Glass-snail
Oxychilus draparnaudi (Beck 1837): Dark-bodied Glass-snail

Family Pristilomatidae
Vitrea contracta (Westerlund 1871): Contracted Glass-snail

Family Milacidae
Milax gagates (Draparnaud 1801): Greenhouse Slug [records based on misidentifications?]

Family Limacidae
Lehmannia marginata (Müller 1774): Tree Slug
Lehmannia valentiana (Férussac in Férussac & Deshayes 1822): Threeband Gardenslug
Limacus flavus (Linnaeus 1758): Yellow Gardenslug
Limax maximus Linnaeus 1758: Giant Gardenslug

Family Agriolimacidae
Deroceras invadens Reise, Hutchinson, Schunack & Schlitt, 2011: Longneck Fieldslug
[synonym: D. panormitanum of authors]
Deroceras reticulatum (Müller 1774): Grey Fieldslug

Family Boettgerillidae
Boettgerilla pallens Simroth 1912: Wormslug

Family Arionidae
Arion rufus (Linnaeus 1758): Chocolate Arion
Arion fasciatus (Nilsson 1823): Orange-banded Arion
Arion circumscriptus Johnston 1828: Brown-banded Arion
Arion silvaticus Lohmander 1937: Forest Arion
Arion intermedius Normand, 1852: Hedgehog Arion
Arion hortensis Férussac 1819: Garden Arion
Arion distinctus Mabille 1868: Darkface Arion
Arion subfuscus (Draparnaud 1805): Dusky Arion

Family Helicidae
Arianta arbustorum (Linnaeus 1758): Copse Snail
Cepaea hortensis (Müller 1774): White-lip Gardensnail [native but introduced to Ontario]
Cepaea nemoralis (Linnaeus 1758): Grovesnail
Cornu aspersum (Müller 1774): Brown Gardensnail

Family Hygromiidae
Monacha cantiana (Montagu 1803): Kentish Gardensnail * [not established]
Trochulus hispidus (Linnaeus 1758): Hairy Helicellid
Trochulus striolatus (C. Pfeiffer 1828): Furrowed Helicellid
Xerolenta obvia (Menke 1828): Heath Helicellid

Family Polygyridae
Patera appressa (Say 1821): Flat Bladetooth