Opercula of three mainland Southeast Asian Pupina species groups A Pupina bensoni sp. nov. from the Pupina artata species group, specimen CUMZ 12047 B Pupina siamensis from the Pupina arula species group, specimen CUMZ 12067, and C Pupina aureola from the Pupina aureola species group, specimen CUMZ 12116. All not to scale.

 
 
  Part of: Jirapatrasilp P, Sutcharit C, Panha S (2022) Annotated checklist of the operculated land snails from Thailand (Mollusca, Gastropoda, Caenogastropoda): the family Pupinidae, with descriptions of several new species and subspecies, and notes on classification of Pupina Vignard, 1829 and Pupinella Gray, 1850 from mainland Southeast Asia. ZooKeys 1119: 1-115. https://doi.org/10.3897/zookeys.1119.85400