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CATHAICA 2(9): 87–98

Taxonomic review of some Chinese species of Moellendorffia, with the description of a new species from Guangdong (Gastropoda, Stylommatophora, Camaenidae)

中国多粒螺属部分物种分类修订及广东省一新种记述（腹足纲：柄眼目：坚齿螺科）

Ran-Xi Lin (林然熙)1 & Zhong-Guang Chen (陈重光)2,*

1 State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, China

[华南农业大学农学院 亚热带农业生物资源保护与利用国家重点实验室 广州 510642 中国]

2 School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China

[南昌大学生命科学学院 南昌 330031 中国]

1 https://orcid.org/0000-0002-1438-7766

2 https://orcid.org/0000-0003-2689-3321

（*通讯作者）

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Abstract

The rich karst topography of southern China supports a high diversity of camaenid land snails, including Moellendorffia Ancey, 1887, but the taxonomy and phylogenetic relationships of several Chinese species remain insufficiently studied. Here, we present a taxonomic review of some Chinese Moellendorffia based on shell morphology, genital anatomy, and mitochondrial COI and 16S sequences. A new species, Moellendorffia shenlong sp. nov., is described from Guangdong Province. In addition, anatomical information is provided for selected species, and the phylogenetic placement of Moellendorffia is discussed.

Key words: Karst landform, new taxon, land snail, South China, taxonomy

摘 要

本文针对多粒螺属 Moellendorffia 的分类开展修订研究，是该属首次分子系统学分析。研究基于 2022–2024 年采集于华南地区的标本，结合线粒体 COI、16S 基因序列构建最大似然树与贝叶斯系统发育树，结果支持多粒螺属为单系群。本文从广东阳江发现并描述新物种神龙多粒螺（Moellendorffia shenlong sp. nov.），该新种与近缘种 M. cf. eastlakeana 互为姐妹群，遗传距离显著，具分类独立性，其壳体形态易与其他同属物种区分。研究同时补充了伊氏多粒螺 M. eastlakeana、苦僧多粒螺 M. kuguaheshang、三凹多粒螺雕刻亚种 M. trisinuata sculpticoncha 的解剖学特征，明确了部分类群的系统发育关系，进一步丰富了对华南岩溶地貌陆生蜗牛多样性的认识。

关键词：陆生贝类，华南地区，分子系统发育，分类学，新物种，岩溶地貌