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| Petraeomastus limenghuai Chen, Dai, Wu & Ouyang, Living on branches of bushes alongside P. heudeanus (Ancey, 1883) in Chen, Dai, Wu, Jiang et Ouyang, 2024. |
Abstract
Our study contains the first molecular phylogeny of Chinese enids based on the mitochondrial markers cytochrome oxidase c (COI) and 16S rRNA (16S). We have sequenced 19 species belonging to 10 out of the 12 currently accepted genera. A new species, Petraeomastus limenghuai Chen, Dai, Wu & Ouyang, sp. nov., is described from the Lancangjiang River Valley in southwest China based on comparative morphology and molecular phylogeny. The currently accepted classification of Chinese enids relies largely on shell morphology and is deemed to require systematic revision.
Key Words: Biodiversity, dry-hot river valley, land snails, phylogeny, taxonomy
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| Petraeomastus limenghuai sp. nov. and three congeners with typical shell morphology. A. Holotype of Petraeomastus limenghuai sp. nov.; B. P. heudeanus; C. P. neumayri; D. P. xerampelinus. |
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| Habitat of Petraeomastus limenghuai sp. nov. A, B. The Lancangjiang River Valley at Rumei; C, D. Petraeomastus limenghuai sp. nov. in life. |
Family Enidae Woodward, 1903
Subfamily Eninae Woodward, 1903
Genus Petraeomastus Möllendorff, 1901
Type species: Buliminus heudeanus Ancey, 1883, by original designation.
Petraeomastus limenghuai Chen, Dai, Wu & Ouyang, sp. nov.
Diagnosis: Shell turreted (vs. cylindrical to conical in all congeners), teleoconch ribbed (vs. smooth in all congeners). Flagellum long. Diverticle unexpanded.
Etymology: The species is named after Meng-Hua Li, who first discovered the new species and assisted in field surveys.
Vernacular name: 黎氏鸟唇螺.
Zhong-Guang Chen, Yu-Ting Dai, Xiao-Ping Wu, Jiao Jiang and Shan Ouyang. 2024. A New Species of Petraeomastus Möllendorff, 1901, with an atypical shell morphology from the Lancangjiang River Valley in southwest China (Gastropoda, Stylommatophora, Enidae). Zoosystematics and Evolution. 100(4): 1201-1209. DOI: doi.org/10.3897/zse.100.130676
