Nomenclature of the parietal plicae and lamellae of Gudeodiscus Páll-Gergely, 2013 (A–C) and Endothyrella Zilch, 1960 (D). A Gudeodiscus longiplica sp. n. B Gudeodiscus emigrans quadrilamellatus Páll-Gergely, 2013 C Gudeodiscus phlyarius (Mabille, 1887) D Endothyrella sp. Abbreviations: af: apertural fold; al: anterior lamella; ip: intermediate plica; lp: lower plica; map: main plica; mp: middle plicae; pd: posterior denticle; pl: posterior lamella; up: upper plica. In order to make the comparison easier, all figures show a dextral specimen (D is reversed). After Páll-Gergely and Hunyadi (2013) and Páll-Gergely et al. (2015b).

  Part of: Páll-Gergely B, Asami T (2016) A new species of Gudeodiscus Páll-Gergely, 2013 from China, with extraordinary conchological and anatomical features (Gastropoda, Pulmonata, Plectopylidae). ZooKeys 564: 1-19.