Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species

86 Geotrochus conicoides (Metcalfe, 1851) 86A Frontal view, shell 8.5 mm high 86B Frontal view, shell 11.0 mm high 86C Apical view (86A, 86C Malaysia, Sarawak, 4th Division, Niah Caves N.P., N and NW side of limestone massif, V 1573 86B Malaysia, Sabah, Tawau Province, Tawau Hills N.P., path up to Bukit Bombalai, V 13167) 87 Geotrochus spilokeiria sp. n. 87A Frontal view, shell 8.5 mm high 87B Umbilical view (Malaysia, Sabah, West Coast Province, Crocker Range N.P., Ulu Kimanis, along Keningau-Kimanis road, BOR/MOL 2784, holotype, aperture slightly reconstructed) 88 Geotrochus scolops sp. n. 88A Frontal view, shell 10.0 mm high 88B Umbilical view (Malaysia, Sabah, Tawau Province, Tawau Hills N.P., BOR/MOL 2432, holotype).