Family Ariolimacidae Pilsbry & Vanatta, 1898
The Ariolimacidae is a western North America group of five or six genera with species distributed from Alaska to southern California. Included in this family are the well-known bananaslugs, genus Ariolimax. Two lesser-known ariolimacids, which live in the mountainous southern interior of British Columbia, have been assessed by COSEWIC (2012, 2016). This group was for many years treated as a subfamily (Ariolimacinae) of Arionidae.
Subfamily Ariolimacinae Pilsbry & Vanatta, 1898
Genus Ariolimax Mörch, 1859
- Ariolimax Mörch 1859: 110; type species by monotypy: Limax columbianus Gould in A. Binney, 1851.
Etymology. Formed by the combination of Arion + Limax. Masculine.
Sugenus Ariolimax Mörch, 1859
Ariolimax (Ariolimax) columbianus (Gould in A. Binney, 1851)
Genus Magnipelta Pilsbry, 1953
- Magnipelta Pilsbry 1953: 37; type species by monotypy: Magnipelta mycophaga Pilsbry, 1953.
Etymology. Latin: magni, large + Greek: pelta, a shield, which is a reference to the large mantle.
Magnipelta mycophaga Pilsbry, 1953
Subfamily Zacoleinae Webb, 1959
Genus Zacoleus Pilsbry, 1903
- Zacoleus Pilsbry 1903: 626; type species by monotypy: Z. idahoensis Pilsbry, 1903.
Etymology. Greek: za, an intensive prefix + koleos, sheath, which was intended to be “an allusion to the enlarged spermathecal duct” (Pilsbry 1948).
Zacoleus idahoensis Pilsbry, 1903