Arionidae


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Arionidae

[‚ar·ē′än·ə‚dē]
(invertebrate zoology)
A family of mollusks in the order Stylommatophora, including some of the pulmonate slugs.
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Former subfamilies of the group long known as Arionidae are treated as full families, separating old world arionids from western North American endemics, which are placed in 3 different families.
The first record of exotic slugs in Australia was from 1824 with the six families noted: Agrolimacidae, Arionidae, Limacidae, Milacidae, Testacellidae and Veronicellidae.
Previously, the pulmonate family Arionidae was regarded as including the subfamilies Arioninae, Anadeninae and the American subfamily Ariolimacinae (Pilsbry 1948).
The members of Ariopeltinae differ from other Arionidae in still retaining a coherent shell plate, while the tentacular and pharyngeal retractor muscles are longer and have a common point of origin (in some even a common stem) at the posterior edge of the pallium.
2005) by retaining Ariolimacinae as a subfamily of Arionidae.
In the past, the position of the South African genus Oopelta within the family Arionidae was regarded as problematic.
A comparison between these taxa that show primitive features and the advanced Arionidae of Europe accordingly seems to suggest a Gondwana origin for the superfamily Arionoidea.
Oopeltidae, Anadenidae, Arionidae, Philomycidae, Succineidae, Athoracophoridae.
Urocyclidae Elisolimaxflavescens (Keferstein 1866) (1) Pristilomatidae Vitrea crystallina (Muller 1774) Oxychilidae Oxychilus alliarius (Miller 1822) Milacidae Tandonia budapestensis (Hazay 1881) [= Milax budapestensis] Poligyridae Triodopsis alleni (Wetherby 1883) Helicidae Cantareus aspersus (Muller 1774) [= Helix aspersa] Helix pomatia Linnaeus 1758 Bradybaenidae Bradybaena similaris (Ferussac 1821) Helminthoglyptidae Cepolis streatori (Pilsbry 1889) Monadenia fidelis (Gray 1834) Arionidae Arion hortensis Ferussac 1819 Philomycidae Philomycus carolinianus (Bosc 1802) Scolodontidae Systrophia eatoni Baker 1913 (2) S.