Belongs within: Heterobranchia.Contains: Triptychia, Albinaria, Clausiliinae, Alopiinae, Phaedusinae. The Clausilioidea are high-spired land snails with well-developed plicae. The clausilioids Published 23 February 2009 The Clausilioidea are a superfamily of Stylommatophora (land snails). In the system of Bouchet et al. (2005), four families are assigned to this group—Palaeostoidae, Filholiidae, Anadromidae and Clausiliidae. The first three of… Continue reading Clausilioidea