Pseudiberus Ancey, 1887 and Platypetasus Pilsbry, 1895 (Stylommatophora: Camaenidae) 属的系统学和生物地理学，并描述了 Pseudiberus shanheicus n. sp.

Pub Date : 2024-04-04 DOI:10.61733/jconch/4510

Guoyi Zhang, Zhongshu Liu, Qaunyu Zhang

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引用次数: 0

摘要

基于形态特征和分子数据的系统发育分析表明，Platypetasus Pilsbry, 1895 不应与 Pseudiberus Ancey, 1887 同名。这两个属分布于不同的地理区域，Pseudiberus属分布于秦岭、太行山、沂蒙山和太行山，Platypetasus属分布于大雪山、邛崃山、岷山和大巴山。在这里，我们描述了产自中国河南省的一个新物种--Pseudiberus shanheicus n. sp.。其贝壳的特征是表面无肋，外围龙骨中空。根据对线粒体 DNA（16S rRNA）和核 DNA（5.8S rRNA 和 ITS2）以及贝壳形态的分析，讨论了严格意义上的山椒鱼之间的系统发育关系。

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Systematics and biogeography of the genera Pseudiberus Ancey, 1887 and Platypetasus Pilsbry, 1895 (Stylommatophora: Camaenidae), with the description of Pseudiberus shanheicus n. sp.

Phylogenetic analyses based on morphological character and molecular data indicate that Platypetasus Pilsbry, 1895 should not be synonymized with Pseudiberus Ancey, 1887. These genera occur in different geographical areas; Pseudiberus species are distributed in the Qinling, Taihang, Yimeng, and Taishan mountains, and Platypetasus species occur in the Daxueshan, Qionglaishan, Minshan, and Dabashan mountains. Here we describe a new species, Pseudiberus shanheicus n. sp., from Henan Province, China. Its shell is distinguished by its ribless surface and hollow peripheral keel. The phylogenetic relationship among Pseudiberus sensu stricto is discussed, based on an analysis of mitochondrial DNA (16S rRNA) and nuclear DNA (5.8S rRNA and ITS2), as well as shell morphology.

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