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 filippina (Heude, 1882) Figs 2A , 17 , 18 , 41C , 48G , 48H , 51 Helix filippina Heude, 1882: 23, pl. 20, fig. 19; - Moellendorff 1884 : 340, 352; - Ancey 1885 : 114; - Standen: 231. Helix (Plectopylis) subchristinae Ancey, 1882: 44. Helix (Plectotropis) subchristinae - Ancey 1883 : 8. Helix subchristinae - Moellendorff 1884 : 340, 352; - Ancey 1885 : 114. Helix subsimilis var. filippina - Gredler 1884 : 264. Helix (Cathaica) filippina - Pilsbry 1892 : 214, pl. 49, figs 34, 35. Laeocathaica subchristinae - Gude 1902 : 6. Laeocathaica filippina - Moellendorff 1899 : 88; - Gude 1902 : 6; - Yen 1935 : 44; - Pall-Gergely et al. 2022 : 59, fig. 19. Laeocathaica subsimilis filippina - Yen 1939 : 148, pl. 15, fig. 29. Laeocathaica (Laeocathaica) christinae filippina - Zilch 1968 : 173; - Richardson 1983 : 79. Museum material. SMF 24266 b, four fms; Badung, Hubei , China . SMF 24226 , three fms; W-Hupei, China ; Slg. K. Hashagen. SMF 24257 , two fms; Changyang [长阳], Sytchuan, China ; ex B. Schmacker, 1893, Slg. O. Boettger . SMF 95118 , five fms; Badung, Hubei , China ; Slg. C. R. Boettger , 1904. SMF 24266 a, three fms; Badung, Hubei , China ; ex Moellendorff , Slg. W. Kobelt. SMF 294296, three fms; Changyang, China ; Slg. C. Bosch, ex Sowerby+Fulton. SMF 294295, one fms; Changyang, China ; Slg. Ehrmann, ex Sowerby+Fulton. SMF 24227 , one fms (labeled with L. subsimilis ); China ; ex? SMF 294292, one fms ( L. filippina ) and two juvs ( L. carinifera ); Sytshuan, China ; Slg. C. Bosch ex H. Rolle. NHMUK ex Salisburg Acc. No. 2044. Figure 17. Laeocathaica filippina (Heude, 1882) A SMF 24266 b B, C NHMUK ex Salisburg Acc. No. 2044 D HBUMM04166-spec.1. New material. HBUMM01256b, Fuhusi , Emei [峨嵋], Sichuan ; sandstone, humid; 2003-VII-26 , coll. Wu, M. ; DNA voucher HBUMM01256b. HBUMM04166, numerous fma, 5 fma dissected; Baidicheng , Fengjie County , Chongqing , two kilometers away from the point ( 241 m a.s.l. , 31.020194°N , 109.472833°E ); mixed rocks of slate and sandy stones, woods with shrubs and trees, humid; 2004-VII-20 , coll. Wu, M ; DNA voucher HBUMM05097 . Figure 18. Genital anatomy of Laeocathaica filippina (Heude, 1882), HBUMM04166-spec.1 A general view B ventral view of dart sac apparatus. Abbreviations: AS - accessory sac; At - atrium; DS - dart sac; Ep - epiphallus; MG - mucous glands; P - penis; PAS - proximal accessory sac; PR - penial retractor muscle; PS - penial sheath; Va - vagina; VD - vas deferens. Distribution. Hubei: Badong (type locality), Yichang (Changyang); Sichuan (Emei); Chongqing: Fengjie. Additional information of shell. Sculpture on the protoconch was present but indistinct because of erosion or weathering. Spiral grooves are absent throughout the shell. General anatomy. Eversible head wart low. Jaw arcuate, with four or five projecting ribs. Anatomy of genital organs. Penial sheath moderately long, covering ~ 1/4-1/3 of penis. Penis slightly expanded distally. A pair of penial internal pilasters fusing into one Y-shaped fork at proximal 1/3; ~ 2 larger pilasters present nearby. Distally inside penis, numerous fine pilasters merging into 6 to 8 short but thick folds near opening of epiphallus. Vas deferens narrow throughout. Vagina between atrium and dart sac not elongated. Vagina between dart sac and insertion of bursa copulatrix duct approximately equal to or slightly shorter than 2/3 length of dart sac. Dart sac ~ 1/2 length of penis. Love dart ~ 2 mm long. Accessory sac spherical, internally almost solid, inserting into dart sac medially, opening to distal dart chamber. Mucous glands 5-7, each complicatedly branched. Proximal accessory sacs two, symmetrical, dorsally separated and ventrally touching, with a few internal pilasters, each with an opening leading to proximal dart chamber. Bursa copulatrix duct of even diameter. Bursa copulatrix ovate, small. Remarks. This species has a spire of variable height, from flatness to dome shape. The umbilicus of this species is obviously narrower than that of Laeocathaica christinae . Furthermore, this species has a pair of ventrally touching proximal accessory sacs instead of ventrally separated ones, which are observed in L. christinae .