A Pupina crosseana, specimen CUMZ 12049 from Khao Jedee Temple, Nakhon Sawan B, C Pupina siamensis: B lectotype SMF 109948 and C specimen CUMZ 12052 from Sri Thong Cave, Sra Keo D–F Pupina bilabiata sp. nov. D holotype CUMZ 12073/1, and specimens E CUMZ 12079 from Tham Pha Ya Temple, Loei and F CUMZ 12081 from Pha Jor Cave, Nong Bua Lam Phu.

 
 
  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