A review of the genus Laeocathaica Moellendorff, 1899 (Gastropoda, Pulmonata, Camaenidae) Author Pall-Gergely, Barna https://orcid.org/0000-0002-6167-7221 Centre for Agricultural Research, Plant Protection Institute, Eoetvoes Lorand Research Network, Herman Otto ut 15, H- 1022, Budapest, Hungary pallgergely2@gmail.com Author Hunyadi, Andras Adria setany 10 G 2 / 5., Budapest 1148, Hungary Author Meng, Kaibaryer National Zoological Museum of China, Institute of Zoology, Chinese Academy of Sciences, Beijing, China Author Fekete, Judit University of Pannonia, Centre of Natural Science, Research Group of Limnology, H- 8200 Veszprem, Egyetem u. 10, Hungary & Centre for Ecological Research, Institute of Aquatic Ecology, Department of Tisza Research, 18 / c Bem square, H- 4026 Debrecen, Hungary text ZooKeys 2022 2022-02-15 1086 33 76 http://dx.doi.org/10.3897/zookeys.1086.77408 journal article http://dx.doi.org/10.3897/zookeys.1086.77408 1313-2970-1086-33 6C32148CA0144AC488EA82A1509E44F8 43AFBD7D61105F598ADA74076D751C11 Laeocathaica hisanoi Pall-Gergely sp. nov. Figure 20D Type material. Holotype China • S Kansu, China, coll. S. Hisano, 24.05.204, SMF 336708 (D: 11.6 mm, H: 5.2 mm) (Fig. 20D ). Paratype China • Same data as for holotype; SMF 363469. Diagnosis. A small Laeocathaica species with many (8.5) whorls, conical dorsal side, rounded body whorl and single, small basal tooth that is situated close to the columella. Description. Shell sinistral, depressed, dorsal side conical with protruding apex, body whorl shouldered; colour chalk white with a single brownish belt below shoulder; entire shell consists of 8.5 whorls, protoconch consists of 1.75-2 whorls, very finely granulose, conspicuously elevated compared to first teleoconch whorls; teleoconch with fine, irregular growth lines, without any notable sculpture, although both examined shells were corroded; last quarter whorl with slight subsutural furrow; aperture semilunar, very strongly oblique to shell axis; peristome sharp, very slightly expanded dorsally, with thickening situated behind peristome edge; basal tooth blunt, elongated, situated ca. at the middle of basal peristome; parietal callus inconspicuous, appears only as thick calcareous layer; umbilicus open, narrow, shows all whorl, with the last half of body whorl extremely widened, resulting in a "9" -shape. Measurements (in mm): D: 11.5-11.6; H: 5.2-5.3 ( n = 2). Differential diagnosis. The most similar species is L. polytyla , which is usually larger, has one whorl more, has a more elevated spire with a domed dorsal side, a rounded body whorl, and a comparatively smaller basal tooth situated closer to the columella. Etymology. This new species is named after S. Hisano, who collected the type material. Distribution. This new species is known from a single museum sample only, consisting of two shells. Figure 20. Laeocathaica species A Laeocathaica polytyla Moellendorff , 1899, lectotype (SMF 9198) B Laeocathaica polytyla , 2016/78 C Laeocathaica polytyla , 2016/65 D Laeocathaica hisanoi sp. nov. (holotype, SMF 336708). Scale bar: 10 mm. All photographs: B. Pall-Gergely .