Fenouilia pluvia Xiang, He, Lu & Chen, 2025

Xiang, Hong Quan, Lu, Yi Zhi, He, Yue Ming, Li, Chong Ye, Gao, Han, Lv, Ang Song & Chen, Hui, 2025, Twenty-seven new species and four new genera of Gastropoda (Animalia: Mollusca) from plateau lake Quaternary sediments in Yunnan, southwestern China, Ecologica Montenegrina 84, pp. 48-71 : 62-63

Fenouilia pluvia Xiang, He, Lu & Chen , sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:24699009-19AF-4A83-8B64-9C46854C2F46

Fig. 2 T , Fig. 7 G-H

Material examined. Holotype: XHQ 24012001, shell height 7.5 mm. Yanjiang Town , Qilin District, Qujing City, Yunnan Province, China, 25.48°N, 103.87°E, June 2024, collected by Yue-Ming He and Hong-Quan Xiang ( Fig. 1 ).

Paratypes: 1 specimen, XHQ 24012002, shell height 8.0 mm, June 2024, locality and habitat same as holotype.

Diagnosis. Shell small, ovate-conic, white, with five whorls, shell surface smooth, aperture ovate, outer lip thickened.

Description. Shell small, but solid, ovate-conic, white, with five spiral whorls, including two protoconch whorls, teleoconch whorl inflated; other whorls surface smooth, body whorl swollen. Apex obtuse. Umbilicus narrow, base white. Aperture ovate, more than half of shell in height, inner lip thickened and smooth, outer lip thickened.

Differential diagnosis. Compared with F. kreitneri , F. sinensis and F. undata , Fenouilia pluvia sp. nov. shell surface smooth, without keels and axial ribs. For Fenouilia pluvia sp. nov., its inner lip is very thick.

Etymology. The species name "pluvia " derives from the Latin word for rain, indicating that the shell of the new species resembles the shape of raindrops. We suggest the Chinese common name as " ffl滴AEḄDz ".

Distribution and ecology. This species is only found in the lake sediments of Qilin District, Yunnan Province.

Figures

Figure 1. Map of the ancient lakes and rivers in the Yunnan Province, south-west China, showing the sampling sites.

Figure 2. (A) paratype, Paraprososthenia bronyaae sp. nov. (B) holotype, P. bicarinata sp. nov. (C) holotype, P. jinxi sp. nov. (D) holotype, P. geguoi sp. nov. (E) holotype, P. yunjian sp. nov. (F) holotype, P. yuanqin sp. nov. (G) holotype, Shuiyu rillionaae gen. et sp. nov. (H) holotype, S. multicostata gen. et sp. nov. (I) holotype, S. shiji gen. et sp. nov. (J) holotype, S. boyuwangi gen. et sp. nov. (K) holotype, S. xuchengweii gen. et sp. nov. (L) holotype, S. phoebe gen. et sp. nov. (M) holotype, S. quanyuzhangi gen. et sp. nov. (N) holotype, S. candida gen. et sp. nov. (O) holotype, Qilinia longfeicheni gen. et sp. nov. (P) holotype, Jullienia quan sp. nov. (Q) holotype, J. chengyuangongi sp. nov. (R) holotype, Fenouilia zihaozhaoi sp. nov. (S) holotype, F. yizhou sp. nov. (T) holotype, F. pluvia sp. nov. (U) holotype, F. gaorange sp. nov. (V) holotype, Lacunopsis chengjiang sp. nov. (W) holotype, L. luliangensis sp. nov. (X) holotype, Longhai zhongxian gen. et sp. nov. (Y) holotype, Gyraulus fuxianensis sp. nov. (Z) holotype, Xingyuan jiamingzhangi gen. et sp. nov. (ZA) holotype, X. zhihehongi gen. et sp. nov. Scale bars = 10 mm.

Figure 7. Shells of Fenouilia zihaozhaoi sp. nov. (A) holotype (B-C) paratype. Shells of F. yizhou sp. nov. (D) holotype (E-F) paratype. Shells of F. pluvia sp. nov. (G) holotype (H) paratype. Shells of F. gaorange sp. nov. (I) holotype (J) paratype. Scale bars = 10 mm.