Phylum Mollusca Linnaeus, 1758 - molluscs Class Gastropoda Cuvier, 1795 - snails and slugs Subclass Divasibranchia Minichev & Starobogatov, 1975 Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855 Suborder Orthurethra Pilsbry, 1900 Superfamily Achatinelloidea Gulick, 1873 [monotypic] 1 Family Achatinellidae Gulick, 1873