Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue Author Pall-Gergely, Barna Plant Protection Institute, Centre for Agricultural Research, Herman Otto ut 15, Budapest, H- 1022, Hungary https://orcid.org/0000-0002-6167-7221 pallgergely2@gmail.com Author Sajan, Sheikh Zoological Survey of India, Prani Vigyan Bhawan, M Block, New Alipore, Kolkata 700053, West Bengal, India & Wildlife Institute of India, Chandrabani, Dehradun 248 002, Uttarakhand, India https://orcid.org/0000-0002-2785-6824 Author Tripathy, Basudev Zoological Survey of India, Prani Vigyan Bhawan, M Block, New Alipore, Kolkata 700053, West Bengal, India Author Meng, Kaibaryer National Zoological Museum of China, Institute of Zoology, Chinese Academy of Sciences, Beijing, China Author Asami, Takahiro Department of Biology, Shinshu University, Matsumoto 390 - 8621, Japan https://orcid.org/0000-0001-5706-0272 Author Ablett, Jonathan D. Mollusca Section, Invertebrates Division, Department of Life Sciences, The Natural History Museums, London SW 7 5 BD, United Kingdom text ZooKeys 2020 981 1 220 http://dx.doi.org/10.3897/zookeys.981.53583 journal article http://dx.doi.org/10.3897/zookeys.981.53583 1313-2970-981-1 5194AAC86B8A473F8A41470A60182A0B 7C44C797C4125A71BAE032A55E6FA5DC Chamalycaeus microconus ( Moellendorff , 1887) Fig. 11A Alycaeus microconus Moellendorff , 1887a: 311-312. Alycaeus microconus - Moellendorff 1891 : 343, pl. 30, figs 12, 12a, 12b. Alycaeus (Chamalycaeus) microconus - Kobelt 1902 : 358. Chamalycaeus (Chamalycaeus) microconus - Zilch 1957 : 143, pl. 5, fig. 6. Type locality. "Ad Buket Pondong". Material examined. Malakka: Bukit Pondong (Perak), SMF 109493 (lectotype, designated by Zilch 1957 ); Same data, SMF 109494 (2 paralectotypes). Diagnosis. Protoconch rather low, without obvious spiral lines, the granules following a near spiralling arrangement, but not at all similar to the multiple, narrow spiral striae typical to most Metalycaeus species; R1 with rather regular ribs and strong spiral lines; R2 extremely short, with only ca. five ribs which are blunt (probably bent?). Operculum unknown. Figure 11. Shells of Chamalycaeus Moellendorff , 1897 species A Chamalycaeus microconus ( Moellendorff , 1887), lectotype (SMF 109493) B C. mixtus Zilch, 1957, holotype (SMF 109510). All images: Barna Pall-Gergely , courtesy Ronald Janssen.