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

29 Microcystina callifera sp. n. SEM image of the third whorl (Malaysia, Sabah, Mantanani Islands, Pulau Lungisan, BOR/MOL 3746) 30 Microcystina striatula sp. n. SEM image of the third whorl (Malaysia, Sabah, Pulau Tiga, BOR/MOL 1100, lost) 31 Microcystina sinica Von Moellendorff, 1885. SEM image of the third whorl (material and data lost) 32 Microcystina consobrina Van Benthem Jutting, 1959. SEM image of the third whorl (Malaysia, Sabah, Kinabalu N.P., Kotal route between 2292 and 3112 m alt., BOR/MOL 4003).