Plectopyloidea
Introduction '''Plectopyloidea''' is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the suborder Helicina.
Families The superfamily Plectopyloidea consists of the following families (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):*Family Plectopylidae Möllendorff, 1898*Family Corillidae Pilsbry, 1905 - with only one genus ''Corilla''*Family Sculptariidae Degner, 1923 - with only one genus ''Sculptaria''
Distribution Plectopylidae ranges across large parts of southeast Asia from Nepal to southern Japan. Corillidae is the mainly Sri Lankan family. Sculptariidae is the African family.
Description The Plectopylidae differ from the Corillidae by the presence of one or two vertical (= perpendicular to the suture) lamellae on the parietal wall, approximately a quarter to a half whorl behind the aperture. In contrast, the Corillidae have only horizontal (= parallel with the suture) parietal plicae (in ''Corilla'' all plicae may be absent).
References This article incorporates Creative Commons (CC-BY-4.0) text from the reference
Further reading *  McMichael, D.F. 1959.A new genus and species of land snail from Nth. Queensland. Journal of the Malacological Society of Australia 1: 31–32 13 Nov. 1959* Smith, B.J. 1992.Non-Marine Mollusca. In, Houston, W.W.K (ed.). Zoological Catalogue of Australia. Canberra : Australian Government Publishing Service Vol. 8 pp. xii 408. * Solem, A. 1973.Craterodiscus McMichael, 1959, a camaenid land shell from Queensland. Journal of the Malacological Society of Australia 2: 377–385* Solem, A. 1973.Convergence in pulmonate radulae. The Veliger 15: 165–171* Stanisic, J. 1998.Family Corillidae. pp. 1110–1112 in Beesley, P.L., Ross, G.J.B. & Wells, A. (eds). Mollusca: The Southern Synthesis. Fauna of Australia. Melbourne : CSIRO Publishing Vol. 5 Part B pp. 565–1234. * Tillier, S. 1989.Comparative morphology, phylogeny and classification of land snails and slugs (Gastropoda: Pulmonata: Stylommatophora). Malacologia 30: 1–303