Shells of Vietnamese Gudeodiscus and Halongella gen. n. species. AGudeodiscus (Gudeodiscus) giardi giardi (Fischer, 1898), MNHN 9946 (syntype of Plectopylis giardi) BG. (G.) villedaryi (Ancey, 1888), SMF 9279 (lectotype of Plectopylis choanomphala) CG. (G.) villedaryi, NHMUK 1930.9.12.38 (holotype of Plectopylis villedaryi) DG. (G.) villedaryi, Vn11-152, coll PGB EG. (G.) dautzenbergi (Gude, 1901), MNHN 24603 (holotype) FG. (G.) dautzenbergi, MNHN 24602 (holotype of Plectopylis persimilis). Photos: T. Deli (A, E, F), S. Hof (B), H. Taylor (C) and B. Páll-Gergely (D). Scale represents 20 mm.

 
 
  Part of: Páll-Gergely B, Hunyadi A, Ablett J, Văn Lương H, Naggs F, Asami T (2015) Systematics of the family Plectopylidae in Vietnam with additional information on Chinese taxa (Gastropoda, Pulmonata, Stylommatophora). ZooKeys 473: 1-118. https://doi.org/10.3897/zookeys.473.8659