A new species of Gudeodiscus Páll-Gergely, 2013 from China, with extraordinary conchological and anatomical features (Gastropoda, Pulmonata, Plectopylidae)

Parietal plication of Plectopylidae species (diagrammatic figures). A Plectopylis leucochila Gude, 1898 (after Gude 1898) BGudeodiscus (Gudeodiscus) longiplica sp. n. C Endothyrella brahma (Godwin-Austen, 1879) D Endothyrella williamsoni (Gude, 1915) E–J character states of Gudeodiscus, Halongella, Sicradiscus and Sinicola; K Endothyrella sp. (some Sicradiscus has also similar parietal lamellation) (mainly after Páll-Gergely & Hunyadi 2013 and Páll-Gergely et al. 2015b). To allow better comparison all figures show dextral specimens (A, C, D, J are reversed), thus, the aperture is situated left from the armature. Red colour indicates the posterior, blue colour indicates the anterior lamella (and their respective homologous structures).