Shells of species of the genera Ampullaceana, Kamtschaticana, Myxas, Tibetoradix, Racesina, Orientogalba and Bullastra. A. Ampullaceana relicta relicta (05.1975, Macedonia, a spring near St. Naum monastery, Ohrid Lake region; NHMW). B. A. r. pinteri, a paratype (05.06.1973, Macedonia, Prespa Lake near Perovo; MHMW). C, D. Kamtschaticana kamtschatica (Russia, Kamchatka Peninsula, Valley of Geysers; RMBH). E. Myxas glutinosa (14.09.1963, Kazakhstan, floodplain of the Tobol River near Kustanay City; ZISP). F, G. Tibetoradix hookeri, two syntypes (NHMUK). H. T. kozlovi, the holotype (ZISP). I. Racesina luteola (India, Bengal, Paksay, Pabna; NHMUK). J. R. oxiana (04.07.2016, Tajikistan, a roadside ditch near Kurban-Shakhid village; LMBI). K. R. siamensis (“Thailand”; ZMB). L. Orientogalba viridis, a syntype (Guam Island; NMNH). M. O. ollula (1883, Japan, Yokohama; NHMUK). N. Limnaea bowelli, a type (after Preston 1909). O. Orientogalba cf. bowelli (30.06.1924, China, Tibet, Lingka, 14,500 feet a.s.l.; NHMUK). P. Bullastra cumingiana (Philippine, Cebu Island; NHMUK). Scale bars: 2 mm (C, D, F–H, L, M, O), 5 mm (A, B, E, J–K, N, P).