Revision of the " Chloritis delibrata (Benson, 1836) " group (Gastropoda, Stylommatophora, Camaenidae) Author Pall-Gergely, Barna https://orcid.org/0000-0002-6167-7221 Plant Protection Institute, Centre for Agricultural Research, Herman Otto Street 15, Budapest, H- 1022, Hungary pallgergely2@gmail.com Author Ablett, Jonathan D. https://orcid.org/0000-0002-7277-1934 Mollusca Section, Invertebrates Division, Department of Life Sciences, The Natural History Museums, London SW 7 5 BD, UK Author Szabo, Marton Hungarian Natural History Museum, Department of Paleontology and Geology, Ludovika ter 2, Budapest 1083, Hungary Author Neubert, Eike https://orcid.org/0000-0002-0277-2894 Natural History Museum of the Burgergemeinde Bern, Bernastr. 15, CH- 3005 Berne, Switzerland & Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland text ZooKeys 2022 2022-02-15 1086 1 31 http://dx.doi.org/10.3897/zookeys.1086.77180 journal article http://dx.doi.org/10.3897/zookeys.1086.77180 1313-2970-1086-1 0AFF7CFB9400477F81160120C393C4FD BD013F15E39C5B5FBE666837836810E1 Helix (Trachia) delibrata var. khasiensis Nevill, 1877, taxon inquirendum Helix delibrata (?) var. Hanley & Theobald, 1870: pl. 14, fig. 9. Helix (Trachia) delibrata Var. khasiensis Nevill, 1877: 21. Chloritis (Trichochloritis) delibrata var. khasiensis Gude, 1914: 173. Chloritis delibrata var. khasiensis Richardson, 1985: 93. Chloritis delibrata khasiensis Ramakrishna et al., 2010 : 326. Type locality. "Khasi Hills". Types. Not found in the NHM or in the ZSI (Sheikh Sajan, pers. comm. April 2020). Remarks. Nevill (1877) named the form illustrated in Hanley and Theobald's (1870) Conchologia Indica (pl. 14, fig. 9) as var. Chloritis khasiensis , and mentioned that it has more raised and rounded whorls and a less open umbilicus than the typical H. delibrata . Nevill's (1877) description was as follows: "The raised and rounded whorls, less open umbilicus, and contracted aperture will distinguish the form; it has sometimes a single brown band, but is often without it; it is tolerably abundant in the Naga and Khasi Hills. (...) Var. Chloritis khasiensis , from Khasi Hills, axis 8.5, diam. 19.5 (apert. 9, diam 10.5) mm". Bouchetcamaena fusca sp. nov. agrees with some parts of Nevill's description (more raised spire and narrower umbilicus than in other similar species), and the Naga and Khasi Hills also match, but the specimens we described above as B. fusca sp. nov. possessed no band and are all smaller than the size mentioned by Nevill. Furthermore, the shell illustrated by Hanley and Theobald (1870) possesses a subsutural furrow (a furrow running between the middle of the body whorl and the suture), which is absent in all B. fusca sp. nov. shells we examined. Thus, we decided to describe these specimens as a new species and consider the name Helix (Trachia) delibrata var. khasiensis as a taxon inquirendum.