Land snail diversity in central China: revision of Laeocathaica Moellendorff, 1899 (Gastropoda, Camaenidae), with descriptions of seven new species Author Wu, Min https://orcid.org/0000-0002-5434-5544 School of Life Sciences, Nanjing University, Nanjing 210023, China minwu1969@aliyun.com Author Shen, Wang School of Life Sciences, Nanjing University, Nanjing 210023, China Author Chen, Zhong-Guang https://orcid.org/0000-0003-2689-3321 Jiangxi Province Key Laboratory of Watershed Ecosystem Change and Biodiversity, Center for Watershed Ecology, Institute of Life Science and School of Life Sciences, Nanchang University, Nanchang 330031, China text ZooKeys 2023 2023-03-20 1154 49 147 http://dx.doi.org/10.3897/zookeys.1154.86237 journal article http://dx.doi.org/10.3897/zookeys.1154.86237 1313-2970-1154-49 4E410C2ACC03438F8AC7C5370819DE6C E4F41DD1A11059DAB4A979F00E85D50F Laeocathaica qiminglii Wu sp. nov. Figs 2A, B , 35C, D , 48C, D , 49D , 51 Type material. Holotype HBUMM08422-spec.1, fms, a slope near X496 ( 32.969442°N , 104.654191°E ), Wenxian, Gansu Province; 2019-X-13; coll. Li, Q.-M.; DNA voucher HBUMM08422a. Paratypes HBUMM08422-spec.2, 1 animal with mature shell but immature genitalia, dissected; same data as holotype. HBUMM08448, 7 fms, east of town of Wenxian, 2020-VIII, coll. Chen, Z.-G. Measurement of holotype. Shell height 5.2 mm, maximum diameter 13.2 mm, aperture height 2.0 mm, aperture breadth 4.2 mm, umbilicus diameter 5.4 mm, protoconch whorls 11/2, whorls 75/8. Diagnosis. Protoconch without granules. Umbilicus extremely broad, ~ 1/2 of maximum diameter. Shell evenly pale brown with umbilicus side paler. Description of shell. Sinistral, fairly depressed, solid. Shell with 75/8-73/4 fairly flat whorls. Suture impressed. Spire depressed-cone-shaped. Protoconch 11/2 whorls, smooth on the first whorl where sculpture may be erased by weathering or erosion, followed by sparse radial threads. Protoconch visible through umbilicus. Growth lines unclear. Spiral grooves absent. After ~ 21/2 whorls, with regularly spaced thick ribs between which are many fine threads. Aperture oblique, peach-shaped, descending in front. Body whorl sharply carinate above periphery. Peristome seldom expanded and only slightly reflexed at lower part. Columella very oblique. Umbilicus very broad, ~ 1/2 of maximum diameter. Shell evenly pale brown with umbilicus side paler. General anatomy. Eversible head wart small but prominent. At mantle edge leaf-shaped appendage absent. On internal body wall of head region between ommatophorous insertions with neither glands nor tiny pits. Body greyish brown, central dorsum with pale longitudinal stripes. Sole dirty white. Jaw arcuate, with five projecting ribs. Anatomy of genital organs. Penial sheath present. Vagina between atrium and dart sac not elongate. Mucous glands four (observations of the genitalia of this species are only based on the paratype HBUMM08422-spec.2). Etymology. This new species is named after the collector Mr. Qiming Li. Ecology. In October, this species was found in the crevices of broken stones on dry slope. Distribution. Only known from the type locality. Remarks. This species has the strongest ribs on the shell surface and the broadest umbilicus of all species of Laeocathaica .