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CATHAICA 1(6): 69–75

Pseudobuliminus xihuashida, an additional camaenid new species with detached last whorl from the border of Sichuan and Gansu, China (Gastropoda: Stylommatophora: Camaenidae)

四川与甘肃交界地区发现具游离体螺层坚螺的又一新种：西华师大假拟锥螺（腹足纲：柄眼目：坚螺科）

Zhong-Guang Chen (陈重光)1,4,*, Zhe-Yu Chen (陈哲宇)2, Yu-Ting Dai (代雨婷)3, Hui Zheng (郑辉)1,5, Xiao-Ping Wu (吴小平)1,6 & Shan Ouyang (欧阳珊)1,7,*

1 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]

2 Faculty of Science, The University of Melbourne, Parkville VIC 3010, Australia,

[墨尔本大学理学院 帕克维尔 VIC3010 澳大利亚]

https://orcid.org/0000-0002-4150-8906

3 College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China;

[江西农业大学动物科学技术学院 南昌 330045 中国]

https://orcid.org/0009-0001-5856-3987

4 https://orcid.org/0000-0003-2689-3321; Email: zgchen1002@foxmail.com

5 https://orcid.org/0009-0004-5222-3975

6 https://orcid.org/0000-0002-8037-5640

7 https://orcid.org/0009-0004-6973-4800; Email: ouys1963@qq.com

（*通讯作者)

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Abstract

Pseudobuliminus xihuashida Z.-G. Chen & Z.-Y. Chen, n. sp., a new species with a detached last whorl, is described from the border of Sichuan and Gansu, China. It can be distinguished from all congeners by the cylindrical shell with last 0.5 to 1 whorl detached, the smooth, initially keeled and gradually rounded teleoconch, and the protoconch with small tubercles.

Key words: Land snails, taxonomy, dry-hot river valley, new species, biodiversity

摘 要

本文描述了产自中国四川与甘肃交界地区的具游离末轮的新种：西华师大假拟锥螺 Pseudobuliminus xihuashida Z.-G. Chen & Z.-Y. Chen, n. sp. 该物种可依据以下特征与所有同属种区分：贝壳呈圆柱形，表面光滑，末端0.5至1个壳层游离；螺层初期具弱龙骨，随后逐渐变圆润；胎壳具有细小结节。

关键词：陆生贝类，分类学，干热河谷，新物种，生物多样性