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| Sinocamaena cheni Wu, in Wu, Chen et Shen, 2024. 陈氏中华坚螺 || DOI: 10.3897/zookeys.1202.118964 |
Abstract
We report a new land snail species representing a new genus from the mountainous area of Zhejiang, China. The snail has a depressed shell with granules all over the surface. The soft part of the new taxon is characterized by the presence of a mantle lobe whose form is reviewed herein across a wide range of helicoid snails, the presence of a developed epiphallic papilla, and the absence of a penial sheath, a dart sac apparatus and a flagellum. As indicated by a molecular-based phylogeny (16S + ITS2), the new taxon is deeply nested in the eastern Asian camaenid genera and shows a close relationship with the camaenids distributed in Central China.
Key words: Anatomy, Camaenidae, mantle lobe, molecular phylogenetics, new genus, new species, taxonomy
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| Sinocamaena cheni Wu, gen. et sp. nov. A holotype, HBUMM08381-spec. 1 B paratype, HBUMM08382-spec. 1, reared to maturity in laboratory C, D HBUMM08381, holotype C shell apex D shell surface. Upper scale for A, B; lower scale for C, D. |
Helicoidea Rafinesque, 1815
Camaenidae Pilsbry, 1895
Sinocamaena Wu, gen. nov.
Chinese name: 中华坚螺属.
Diagnosis: Shell depressed. Protoconch and teleoconch granulate. Protoconch strongly sculptured. Peristome expanded. Head wart low and tiny. Between the ommatophore insertions, a gland pore present. A mantle lobe present. Penial sheath absent. Epiphallus very short. Epiphallic papilla well developed. Flagellum absent.
Etymology: This new genus is named after “sino” (= China) and “camaena” which is a camaenid genus that includes many large-sized helicoid species.
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| Sinocamaena cheni Wu, gen. et sp. nov., paratype, HBUMM08382-spec. 1, a specimen reared to maturity in laboratory. |
Sinocamaena cheni Wu, gen. et, sp. nov.
Chinese name: 陈氏中华坚螺.
Etymology: This new species is named in memory of Professor Chen De-Niu [陈德牛 Nov 1939 – March 2024], a known malacologist working on Chinese land molluscs. Prof. Chen was one of the doctoral supervisors for Wu M.
Distribution: Zhejiang (only from type localities: Yunhe, Longquan).
Min Wu, Tian Chen and Wang Shen. 2024. New camaenid Genus and Species from Zhejiang, East China (Eupulmonata, Helicoidea). ZooKeys. 1202: 135-154. DOI: 10.3897/zookeys.1202.118964
