Two new species of Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Thailand, with a key to Thai species Author Nahok, Benchawan https://orcid.org/0009-0009-1788-6788 Department of General Science, Faculty of Education, Chaiyaphum Rajabhat University, Muang District, Chaiyaphum, 36000, Thailand Author Chanlabut, Utain 0000-0001-8275-7434 Department of General Science, Faculty of Education, Chaiyaphum Rajabhat University, Muang District, Chaiyaphum, 36000, Thailand Author Tumpeesuwan, Sakboworn 0000-0001-5900-7862 Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham, 44150, Thailand Author Tumpeesuwan, Chanidaporn 0000-0003-2066-1271 Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham, 44150, Thailand text ZooKeys 2024 2024-08-05 1208 347 362 journal article 10.3897/zookeys.1208.117056 ECCF2630-D984-45A8-BF19-DA219F26D495 Genus Landouria Godwin-Austen, 1918 Type species. Helix huttonii L. Pfeiffer, 1842 (new name for Helix orbicula Hutton & Benson, 1838 ), by original designation. Type locality. Himalaya near Simla, Mahasu, northern India ( Hutton and Benson 1838 ).