SEM images of radulae of Gudeodiscus species. A, D, G, J, M show the middle part of the radula B, E, H, K, N show the central tooth and the first 2–3 pairs of laterals C, F, I, L, O show the marginals. A–CGudeodiscus (Gudeodiscus) giardi giardi (Fischer, 1898) (for locality see Figure 19) D–FG. (G.) messageri raheemi Páll-Gergely & Hunyadi, ssp. n. (for locality see Figure 20) G–IG. (G.) multispira (Möllendorff, 1883), China, Guangxi, Qingshan, Qingshan Zhen, Lipu Xian, ca 250 m, 24°26.189'N, 110°20.008'E, leg. Nakahara, Y., Ohara, K., Okubo, K. & Otani, J. U., 12.11.2004. J–LG. (G.) phlyarius (Mabille, 1887), Lạng Sơn Province, ca. km. 50 of road 1B, 10 km to Bình Gia, 21°53.911'N, 106°25.664'E, leg. Hemmen, Ch. & J., 01.04.2011. M–OG. (G.) villedaryi (Ancey, 1888), (for locality see Figure 23). All photos by B. Páll-Gergely.