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

82 Geotrochus paraguensis (E.A. Smith, 1893). Frontal view, shell 7.0 mm high (Malaysia, Sabah, Kudat Province, Balambangan Island, Kok Simpul (leg. J.J. Vermeulen & M. Schilthuizen, V 9510) 83 Geotrochus labuanensis (Pfeiffer, 1863) 83A Frontal view, shell 7.0 mm high 83B Apical view (Malaysia, Sabah, Tawau Province, Segama valley, hill N.W. of crossing road Sandakan-Lahad Datu with the Segama River,V 1656) 84 Geotrochus kinabaluensis (E.A. Smith, 1895) 84A Frontal view, shell 10 mm high 84B Frontal view, shell 7.4 mm high, aperture damaged (84A Malaysia, Sabah, Mount Kinabalu, NHMUK 1893.6.8.28-29, syntype of Trochonanina kinabaluensis 84B Malaysia, Sabah, Interior Province, Crocker Range N.P., West of the km 10 marker on the road Tambunan-Ranau, Mahua Waterfall, BOR/MOL 3372) 85 Geotrochus oedobasis sp. n. 85A Frontal view, shell 6.0 mm high 85B Frontal view, shell 8.5 mm high (85A Malaysia, Sabah, West Coast Province, Kinabalu N.P., Headquarters area, RMNH.5003929, holotype; 85B Malaysia, Sabah, Interior Province, Gunung Trusmadi slopes, Gua Loloposon, V 13258).