The genus Diplommatina Benson, 1849 (Gastropoda: Caenogastropoda: Diplommatinidae) in Nepal, with the description of seven new species Author Budha, Prem B. University of Antwerp, Evolutionary Ecology Group, Universiteitsplein 1, B- 2610, Antwerp, Belgium. & Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu, Nepal. & Corresponding author: prembudha @ yahoo. com prembudha@yahoo.com Author Naggs, Fred Natural History Museum, Cromwell Road, London, SW 7 5 BD, UK. & Email: f. naggs @ nhm. ac. uk f.naggs@nhm.ac.uk Author Backeljau, Thierry University of Antwerp, Evolutionary Ecology Group, Universiteitsplein 1, B- 2610, Antwerp, Belgium. & Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B- 1000, Brussels, Belgium. & Email: thierry. backeljau @ naturalsciences. be thierry.backeljau@naturalsciences.be text European Journal of Taxonomy 2017 2017-07-21 337 1 30 journal article 22067 10.5852/ejt.2017.337 5a7f73c5-5646-446f-a72c-3ea18d8f634f 2118-9773 3832483 2669CB69-5064-4B5D-AC25-856680E3B9AA Diplommatina exserta Godwin-Austen, 1886 Figs 3B , 9B Diplommatina exserta Godwin-Austen, 1886: 184 , pl. 49, figs 2, 2a. Diplommatina ( Diplommatina ) exserta – Kobelt 1902: 432 . Diplommatina exserta – Gude 1921: 314 . — Budha et al. 2015: 6 . Diagnosis Measurements (n = 3): SH 3.4–3.5 mm , SW 1.7–1.8 mm , Wh 7.5. Dextral, apical whorls slowly increasing in size, resulting in a slender conical spire. Penultimate and body whorls nearly equal in width. Constriction between parietal lips of the peristome at AeP ( Fig. 9B ). Two parietalis: Prt1 long and strongly developed, gradually elevated inner side of the body whorl, Prt2 short ( Fig. 3B3 ). Two vertical palatalis: Vpt1 stronger and close to the constriction,Vpt2 short. One long horizontal palatalis, touching the inner parietal lip ( Fig. 9B ). Columellaris strong. Columellar tooth prominent. Protoconch smooth, Wh 2.0, with minute evenly distributed pits, no radial ribs ( Fig. 3B 1 ). Teleoconch with widely spaced radial ribs; 7–8 ribs/ 0.5 mm on the penultimate whorl; 8–10 ribs/ 0.5 mm on the body whorl towards the aperture ( Fig. 3B 2 , B 4 ). Ribs moderately prominent. Very fine spiral striation present. Umbilicus open. Aperture inversely C-shaped, due to the straight columellar edge of the lip. Peristome with two close lips; under high magnification 2–3 ribs seen between the two lips. Parietal wall of the aperture extending to nearly halfway up the body whorl. Material examined NEPAL : 4 shells, Siddha Cave, Tanahun, 695 m , 27.94544 N , 84.422244 E , 24 Oct. 2008 , P.B. Budha and R. Devkota leg. ( CDZMTU 024). Remarks The most similar species are Diplommatina exilis W.T. Blanford, 1863 from Myanmar ( Hanley & Theobald 1876 : pl. 119, fig.10) and D. pullula Benson, 1859 from “Rungun on the West of Darjiling” ( Hanley & Theobald 1876 : pl. 119, fig.7). Compared to D. exserta , the apical whorls are wider in D. pullula and more tumid in D. exilis .