Approximate geographical position of the type locality of all nominal species of the genera Moellendorffia (circle), Trichelix (square), and Moellendorffiella (triangle). The numbers indicated correspond to the nominal species listed in the catalogue of the type specimen.

 
 
  Part of: Sutcharit C, Inkhavilay K, Panha S (2020) Taxonomic note on Trichelix horrida (Pfeiffer, 1863) from Laos, with a type catalogue of Moellendorffia, Trichelix, and Moellendorffiella (Heterobranchia, Camaenidae). ZooKeys 952: 65-93. https://doi.org/10.3897/zookeys.952.52695