A Tortaxis erectus, neotype NHMUK 1991104A from Nanking, China B Tortaxis elongatissimus, syntype MNHN-IM-2000-4705 from Pac-Kha C Tortaxis lubricus, holotype ANSP 66056 from near Haiphong D Tortaxis papillosa, MNHN-IM-2000-33971 from Nam-Nhang E Tortaxis permira, syntype MNHN-IM-2000-4675 from That-Khé, Tonkin F Tortaxis pilsbryi, syntype MNHN-IM-2000-4678 from Bac-Khan et That-Khé G–I Tortaxis cylindrotis sp. nov. G holotype CUMZ 13078 from Taunggyi, Shan State, Myanmar with embryonic whorls and aperture H, I paratypes CUMZ 13079 from the type locality H probably juvenile shell with 7 whorls and I adult shell. Photographs: P Bourguignon & D Brabant (B, D–F).