12 Ditropopsis tyloacron sp. n. 12A Frontal view, shell 1.6 mm high 12B Frontal view, shell 1.5 mm high 12C Umbilical view (12A, 12C Malaysia, Sabah, Tawau Province, Danum Valley Conservation Area, RMNH.5003920, holotype; 12B Indonesia, Kalimantan Selatan, Meratus Mountains, c. 18 Km East of Barabai, Nateh near Batu Tangga, V 3003) 13 Ditropopsis constricta sp. n. 13A Frontal view, shell 1.5 mm high 13B Umbilical view (Malaysia, Sabah, Interior Province, Sepulut valley, Gua Sanaron, RMNH.5003919, holotype).

  Part of: Vermeulen JJ, Liew TS, Schilthuizen M (2015) Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species. ZooKeys 531: 1-139. https://doi.org/10.3897/zookeys.531.6097