Shuiyu phoebe Xiang, He, Gao & Chen 2025, gen. et sp. nov.

Shuiyu phoebe Xiang, He, Gao & Chen, gen. et sp. nov. https://zoobank.org/ urn:lsid:zoobank.org:act: 7B8F9C00-E92A-4F1E-B781-042C4509262D Fig. 2 L, Fig. 4 M Material examined. Holotype: XHQ 24011201, shell height 21.0 mm. Yanjiang Town, Qilin District, Qujing City, Yunnan Province, China, 25.48°N, 103.87°E, June 2022, collected by Yue-Ming He and Hong-Quan Xiang (Fig. 1). Paratypes: 2 specimens, XHQ 24011202-03, shell height 19.0- 19.3 mm, June 2022, locality and habitat same as holotype. Diagnosis. Shell small, elongate conic, white, with seven whorls, the whorls with axial ribs, aperture ovate, outer lip reflexed. Description. Shell small, translucent, but solid, elongate conic, white, with seven spiral whorls, including two protoconch whorls, teleoconch whorl inflated; third whorls smooth; fourth to fifth whorls with a weak keels; other whorls with six axial ribs, body whorl swollen. Apex obtuse. Umbilicus narrow and small, base white and with one obviously keel around umbilical area. Aperture ovate, less than half of shell in height, inner lip thickened and smooth, outer lip reflexed and thickened. Differential diagnosis. Compared with S. rillionaae gen. et sp. nov., S. multicostata gen. et sp. nov. and S. boyuwangi gen. et sp. nov., Shuiyue phoebe gen. et sp. nov. with less axial ribs and fourth to fifth whorls with a weak keels. Compared with S. xuchengweii gen. et sp. nov., Shuiyue phoebe gen. et sp. nov. with axial ribs and inner lip thicker. Etymology. The species name "phoebe " originates from a plant in China called Nanmu. We suggest the Chinese common name as " 楠木水玉Dz ". Distribution and ecology. This species is only found in the lake sediments of Qilin District, Yunnan Province.