title: The family Plectopylidae (Gastropoda, Pulmonata) in Laos with the description of two new genera and a new species.
abstract: Previously only a single plectopylid species, Helix laomontana L. Pfeiffer, 1862 was reported from Laos. Here we erect Naggsia Páll-Gergely & Muratov, gen. n. for Helix laomontana based on the description of its reproductive anatomy and radula. Another species, Hunyadiscus saurini Páll-Gergely, gen. & sp. n. is described from Northern Laos based on conchological data. Helix (Plectopylis) andersoni Blanford, 1869, which is known from the Burmese-Chinese border region, is also classified within Hunyadiscus Páll-Gergely, gen. n. A third species, Gudeodiscus (Gudeodiscus) messageri raheemi Páll-Gergely & Hunyadi, 2015 is reported from Laos for the first time. The new localities represent the westernmost sites of the genus Gudeodiscus. The reproductive anatomy of the latter species is described.
authors.affiliation: Department of Biology, Shinshu University, Matsumoto 390-8621, Japan.
authors.forename: Barna
authors.initials: B
authors.lastname: Páll-Gergely
authors.affiliation: KwaZulu-Natal Museum, P. Bag 9070, Pietermaritzburg 3200, South Africa; School of Life Sciences, University of KwaZulu-Natal, Scottsville, 3206, South Africa.
authors.forename: Igor V
authors.initials: IV
authors.lastname: Muratov
authors.affiliation: Department of Biology, Shinshu University, Matsumoto 390-8621, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Asami
keywords: Taxonomy; anatomy; new genus; new species; protoconch; radula