Belongs within: Heterobranchia.Contains: Arion. The Arionoidea are slugs and semislugs characterised by an aulacopod foot (surrounded by a supra-pedal groove) and odontognath (ribbed) jaw (Hausdorf 1998). A small shell is present in Binneya and Anostomopsis; other arionoids are shell-less. In members of the family Philomycidae, the mantle covers nearly the entire dorsum of the animal… Continue reading Arionoidea

Categorised as Arionoidea