A Cyclophorus malayanus (W. H. Benson, 1852) B Cyclophorus perdix borneensis (Metcalfe, 1854) C Lagocheilus trochoides (Stoliczka, 1872) D Coptocheilus sectilabris (A. Gould, 1844), photo credit Mei Yi Lee E Pupina aureola Stoliczka, 1872 F Rhaphaulus lorraini L. Pfeiffer, 1856.

 
 
  Part of: Goh S-M, Jasrul D, Lee M-Y, Vermeulen JJ, Liew T-S (2025) From 153-year-old records to contemporary discoveries: land snail (Mollusca, Gastropoda) diversity in Penang Hill, Malaysia. ZooKeys 1230: 99-154. https://doi.org/10.3897/zookeys.1230.136906