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
(Achatinid Sigmurethra)
Suborder Sigmurethra Pilsbry, 1900
see Group Sigmurethra Pilsbry, 1900
Superfamily Plectopylidoidea Möllendorff, 1898
see Superfamily Plectopyloidea Möllendorff, 1898
Family Plectopylididae Möllendorff, 1898
see Family Plectopylidae Möllendorff, 1898
Genus Plectopylis Benson, 1860
Subgenus Endothyrella Zilch, 1960