Xingyuan jiamingzhangi Xiang, He, Li & 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 : 68

Xingyuan jiamingzhangi Xiang, He, Li & Chen , gen. et sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:58F861F8-8D0B-4C5B-963C-A61E4ECA1F3D

Fig. 2 Z , Fig. 11 A-B

Material examined. Holotype. shell length: 2.20 mm. China, Yunnan, Yuxi County, Lake Fuxian, Lu Chong [ūṗ]. 24.5669°N, 102.8411°E, collected by Yue-Ming He, January 2025. NCUBJ24201 .

Paratypes. two shells, NCUBJ24202–03 , shell length: 2.82 mm, locality and habitat same as holotype, collected by Hong-Quan Xiang and Yue-Ming He, January 2025 .

Diagnosis. Shell thin, patelliform; apex prominent, curves rolled; a boundary between protoconch and teleoconch.

Description. Shell thin, pale brown, patelliform; apex prominent, blunt, curves downwards to the right and rolled, surpassing the right edge of shell; a boundary between protoconch and teleoconch. Aperture longer than wide. Teleoconch with concentric growth lines, some individuals with weak and less radial wrinkles.

Etymology. The species name "jiamingzhangi " is derived from the name of Jia-Ming Zhang a friend who assisted with the investigation. We suggest the Chinese common name as " 张氏wāDz ".

Distribution and ecology. The species has currently only been found in a small bay of Lake Fuxian in Yuxi City, Yunnan Province, China, buried in the sediment layers rich in Quaternary lake deposits. After conducting surveys in other areas of Lake Fuxian, the species has not been found in any other regions so far.

Figures

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 11. Shells of Xingyuan jiamingzhangi gen. et sp. nov. (A) holotype (B) paratype. Shells of X. zhihehongi gen. et sp. nov. (C) holotype (D) paratype. Scale bars = 1 mm.