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| Fenouilia undata Chen & He, in Chen, He, Wang et Pan, 2024. |
Abstract
A new species of pomatiopsid freshwater snail, Fenouilia undata Chen & He, sp. nov., is described from Guangxi, China, based on morphological and molecular evidence. The new species can be distinguished from its congeners by the following combination of characters: shell with low, prosocline, rounded axial ribs and fine spiral striae, broader than high; aperture broader than shell height; radula with lateral teeth have only two or three faint, wavy ridges on inner side. A molecular analysis of partial mitochondrial COI and 16S DNA sequences supports the systematic position of the new taxon.
Key words: Diversity, southern China, taxonomy, Triculinae
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| Fenouilia undata sp. nov. shells and operculum A–D holotype, NNU230701 E–H paratype, NNU230702 I–L paratype, NNU230703 M paratype, NNU230704 N paratype, NNU230705 O, P operculum, holotype, NNU230701. Scale bars: 2 mm (A–N); 1 mm (O–P). |
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| Fenouilia undata sp. nov. A color in life B natural habitat. Photographs by Xu Cheng Wei and Yue Ming He. |
Family Pomatiopsidae Stimpson, 1865
Subfamily Pomatiopsinae Stimpson, 1865
Genus Fenouilia Heude, 1889
Fenouilia undata Chen & He, sp. nov.
Diagnosis: Shell small, thin but solid, with rounded, rather flattened shape, and width greater than height; sculptured with low, rounded axial ribs and fine spiral striae; whorls 4–5; body whorl swollen and large. Suture shallow; umbilicus narrow, crescent-shaped or closed. Aperture large, its length greater than shell height. Operculum ovate, corneous, slightly transparent, yellowish.
Etymology: From the Latin adjective undata (wavy or wave-like form). We suggest the Chinese common name 波浪龙骨螺.
Hui Chen, Yue Ming He, Chong Rui Wang and Da Pan. 2024. A New Species of Freshwater Snail of Fenouilia (Gastropoda, Pomatiopsidae) from northern Guangxi, China, based on morphological and DNA evidence. ZooKeys. 1196: 271-283. DOI: 10.3897/zookeys.1196.113856
