Sketch of Diplommatina spinosa and Diplommatina bicoronata bicoronata extracted from Vermeulen (1993), and Diplommatina rumbangensis sp. nov. showing the position of the longitudinal palatalis (red), the transversal palatalis (blue), and the constriction area (grey).

 
 
  Part of: Nasir NS, Lee JY, Marzuki ME, Vermeulen JJ, Mohd-Azlan J, Khalik MZ (2024) Checklist of land snail species of Gua Rumbang, Sarawak, Malaysian Borneo (Mollusca, Gastropoda), with a description of a new species, Diplommatina rumbangensis sp. nov. ZooKeys 1198: 295-340. https://doi.org/10.3897/zookeys.1198.116265