Parietal (A, C, E, G, I, K, M, O–Q, S, V) and palatal (B, D, F, H, J, L, N, R, T–U, W–X) plicae and lamellae of Sicradiscus and Gudeodiscus species. A–B Sicradiscus mansuyi (Gude, 1908), 20081116C (two different specimens) C–FGudeodiscus (Gudeodiscus) anceyi (Gude, 1901) C–D figures in Gude (1901a) E MNHN-IM-2012-2263, F GS22 G–JG. (G. ?) hemmeni Páll-Gergely & Hunyadi, sp. n. G–H 2012/62, spec.1 I–J 2012/62, spec.2 K–PG. (G.) phlyarius (Mabille, 1887) (typical gouldingi and anterides shells) K–L Plectopylis gouldingi (after Gude 1909) M–N Plectopylis anterides (after Gude 1909) O–P MNHN-IM-2012-2153 Q–XG. (G.) phlyarius (typical fallax and fallax var. major shells) Q–R Plectopylis fallax (after Gude 1909) S MNHN-IM-2012-2157 T–U MNHN-IM-2012-2132 (2 different specimens) V–W MNHN-IM-2012-2155/6 (“var. major”, two different specimens), X Vn11-187. Inner view: D, L, N, R; Outer view: B, F, H, J, T, U, W, X.