Land snails and slugs of Bau limestone hills, Sarawak (Malaysia, Borneo), with the descriptions of 13 new species Author Marzuki, Mohammad Effendi bin Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia & Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88450, Kota Kinabalu, Sabah, Malaysia fendiemz@gmail.com Author Liew, Thor-Seng https://orcid.org/0000-0002-9437-5924 Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88450, Kota Kinabalu, Sabah, Malaysia thorsengliew@gmail.com Author Mohd-Azlan, Jayasilan Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia text ZooKeys 2021 2021-04-27 1035 1 113 http://dx.doi.org/10.3897/zookeys.1035.60843 journal article http://dx.doi.org/10.3897/zookeys.1035.60843 1313-2970-1035-1 ED19022EA1704DB79587FEFE15D07854 4C2258D4EE6754488B9280D3AB0447A1 Platycochlium sarawakense Laidlaw, 1950 Figure 21A Platycochlium sarawakense Laidlaw, 1950: 370-372, fig. 1A, B. Type locality. "Gunong Kapor, Bau District, Sarawak". Material examined. Gunung Doya: ME 2906, ME 8930, ME 8950, ME 8993. Gunung Kapor: ME 8150, ME 8503, ME 9050. Gunung Batu: ME 2838, ME 2843, ME 2871, ME 8819. Distribution in Borneo. Sarawak: Kuching and Serian divisions. Endemic to Borneo. Remarks. Living snails were observed foraging among leaf litter and plant debris near the cliff in a lowland limestone forest. Figure 21. A Platycochlium sarawakense Laidlaw, 1950 ME 8993 Gunung Doya B Gulella bicolor (T. Hutton, 1834) ME 9095 Gunung Kapor C Succinea obesa Martens, 1867 ME 2903 Gunung Batu.