The operculate micro land snail genus Dicharax Kobelt & Moellendorff, 1900 (Caenogastropoda, Alycaeidae) in Thailand, with description of new species Author Jirapatrasilp, Parin https://orcid.org/0000-0002-5591-6724 Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Author Pall-Gergely, Barna https://orcid.org/0000-0002-6167-7221 Plant Protection Institute, Centre for Agricultural Research, Herman Otto ut 15, H- 1022 Budapest, Hungary Author Sutcharit, Chirasak Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Author Tongkerd, Piyoros https://orcid.org/0000-0001-9221-9293 Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand piyorose@hotmail.com text Zoosystematics and Evolution 2021 2021-01-05 97 1 1 20 http://dx.doi.org/10.3897/zse.97.59143 journal article http://dx.doi.org/10.3897/zse.97.59143 1860-0743-1-1 1D5553BA24894F2C9527B7E46B9B432B BD006A3AD2C6516AB596CDA05E0F375D Dicharax Kobelt & Moellendorff , 1900 Alycaeus (Charax) Benson, 1859: 177; Pfeiffer 1865 : 43, 44; Kobelt and Moellendorff 1897 : 149, 150 (invalid; preoccupied by Charax Scopoli, 1777 [ Pisces ]). Alycaeus (Dicharax) Kobelt & Moellendorff , 1900: 186 (replacement name for Charax Benson, 1859, non Charax Scopoli, 1777 [ Pisces ]); Kobelt 1902 : 364; Gude 1921 : 236. Chamalycaeus (Dicharax) - Thiele 1929 : 108; Wenz 1938 : 478, fig. 1225; Egorov 2013 : 37, fig. 66. Chamalycaeus (Sigmacharax) Kuroda, 1943: 8; Egorov 2013 : 37, 38. Chamalycaeus (Cipangocharax) Kuroda, 1943: 11; Egorov 2013 : 36. Chamalycaeus (Awalycaeus) Kuroda, 1951: 73, 74; Egorov 2013 : 35, 36. Dicharax - Pall-Gergely and Asami 2017 : 14; Pall-Gergely et al. 2017 : 10, fig. 5; Pall-Gergely et al. 2020b : 48-53. Type species. Alycaeus hebes Benson, 1857, by subsequent designation ( Gude 1921 : 236).