title: Review of the genus Endothyrella Zilch, 1960 with description of five new species (Gastropoda, Pulmonata, Plectopylidae).
abstract: All known taxa of the genus Endothyrella Zilch, 1960 (family Plectopylidae) are reviewed. Altogether 23 Endothyrella species are recognized. All species are illustrated and whenever possible, photographs of the available type specimens are provided. Five new species are described: Endothyrella angulata Budha & Páll-Gergely, sp. n., Endothyrella dolakhaensis Budha & Páll-Gergely, sp. n. and Endothyrella nepalica Budha & Páll-Gergely, sp. n. from Nepal, Endothyrella robustistriata Páll-Gergely, sp. n. from the Naga Hills, India, and Endothyrella inexpectata Páll-Gergely, sp. n. from Sichuan, China. Helix (Plectopylis) munipurensis Godwin-Austen, 1875 is synonymized with Helix (Plectopylis) serica Godwin-Austen, 1875, and Plectopylis (Endothyra) gregorsoni Gude, 1915 is synonymized with Helix (Plectopylis) macromphalus W. Blanford, 1870. Plectopylis plectostoma var. exerta Gude, 1901 is a synonym of Plectopylis plectostoma var. tricarinata Gude, 1896, which is a species in its own right. Five species of the genus Chersaecia viz. Plectopylis (Chersaecia) bedfordi Gude, 1915, Helix (Plectopylis) brahma Godwin-Austen, 1879, Helix (Plectopylis) Oglei Godwin-Austen, 1879, Helix (Plectopylis) serica Godwin-Austen, 1875, and Plectopylis (Endothyra) williamsoni Gude, 1915 are moved to Endothyrella. The holotype of Plectopylis hanleyi Godwin-Austen, 1879 seems to be lost; therefore, Plectopylis hanleyi is considered to be a nomen dubium.
authors.affiliation: Department of Biology, Shinshu University, Matsumoto 390-8621, Japan.
authors.forename: Barna
authors.initials: B
authors.lastname: Páll-Gergely
authors.affiliation: Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu, Nepal ; University of Antwerp, Evolutionary Ecology Group Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
authors.forename: Prem B
authors.initials: PB
authors.lastname: Budha
authors.affiliation: Natural History Museum, Cromwell Road London, SW7 5BD, UK.
authors.forename: Fred
authors.initials: F
authors.lastname: Naggs
authors.affiliation: Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium ; University of Antwerp, Evolutionary Ecology Group Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
authors.forename: Thierry
authors.initials: T
authors.lastname: Backeljau
authors.affiliation: Department of Biology, Shinshu University, Matsumoto 390-8621, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Asami
keywords: China; India; Myanmar; Nepal; Taxonomy; anatomy; sinistrality