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      The first proven oxychilid land snail endemic to China (Eupulmonata, Gastrodontoidea)

      , 1 , 2

      ZooKeys

      Pensoft Publishers

      Geometric morphometric analysis, ITS2, new genus, Oxychilidae , phylogeny, Sichuan

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          Abstract

          Abstract

          A new and the first proven oxychilid species endemic to China is reported from Sichuan Province. Sinoxychilus gen. nov. is established based on this new species and has diagnostic traits of the sculptured protoconch, partial epiphallus wrapped by developed penis sheath, penial retractor muscle inserting on the top of penial caecum, spinelets on penial pilasters, absence of epiphallic papilla and perivaginal gland present on vagina and proximal bursa copulatrix duct. In light of shell morphology and through geometric morphometric analyses, Zonites scrobiculatus scrobiculatus Gredler and Z. scrobiculatus hupeina Gredler are proposed to be included in the new genus. A phylogenetic inference based on ITS2 gene indicates that the new genus is systematically close to Oxychilus Fitzinger, which is known from the Western Palearctic and the Southwestern Arabian Peninsula, regions that are geographically far from the distribution range of the new genus.

          Translated abstract

          Chinese abstract

          首次从四川青城山报道了璃螺科( Oxychilidae ,癞蜗牛总科Gastrodontoidea)的陆生软体动物。依据胚螺具雕饰、交接器鞘包裹部分成荚器、交接器收缩肌着生于交接器盲囊顶端、交接器内的壁柱具小棘、成荚器乳突阙如、雌道及纳精囊管基部具雌道周腺等特征,建立了由貊华璃螺 Sinoxychilus melanoleucus gen. nov. and sp. nov.为属模式种的华璃螺属 Sinoxychilus gen. nov.。根据贝壳特征及贝壳几何形态学分析,认为分别分布于湖南和湖北的 Zonites scrobiculatus scrobiculatus Gredler, 1885 与 Z. scrobiculatus hupeina Gredler, 1887当归于本新属。据ITS2序列重建的支序关系揭示该属与广泛分布于古北区西部等地区的璃螺属( Oxychilus Fitzinger)具有较其它癞蜗牛总科类群更近的系统发生关系。地理分布上,华璃螺为位于璃螺科连续分布区之外的一属。

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          Most cited references 21

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          Revised Classification, Nomenclator and Typification of Gastropod and Monoplacophoran Families

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            • Abstract: not found
            • Article: not found

            Biogeography of the Limacoidea sensu lato (Gastropoda: Stylommatophora): vicariance events and long-distance dispersal

             B Hausdorf (2000)
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              A systematic revision of the land snails of the Western Ghats of India.

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048d35-bb1d-5ce8-9668-537e44bd4c7e
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2019
                06 August 2019
                : 870
                : 33-50
                Affiliations
                [1 ] School of Life Sciences, Nanjing University, Nanjing 210023, China Nanjing University Nanjing China
                [2 ] Huarun 24 Town, Chenghuaqu, Chengdu 610051, China Unaffiliated Chengdu China
                Author notes
                Corresponding author: Min Wu ( minwu1969@ 123456aliyun.com )

                Academic editor: E. Gittenberger

                Article
                32903
                10.3897/zookeys.870.32903
                6692301
                Min Wu, Zhengping Liu

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Categories
                Research Article
                Pulmonata
                Taxonomy
                Cenozoic
                Asia

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