Radula morphology of Muangnua arborea Tumpeesuwan & Tumpeesuwan, sp. nov. (paratype NHMSU-00020) A radula plate (ribbon-like radula in middle of picture) B central tooth (arrow) and lateral teeth C close-up view of left side of radula D close-up view of middle part of radula E close-up view of left side of radula showing marginal teeth F close-up view of right side of radula.

 
 
  Part of: Tumpeesuwan C, Tumpeesuwan S (2019) Muangnua arborea, a new semislug (Gastropoda, Stylommatophora, Helicarionidae, Durgellininae) from Loei Province, northeastern Thailand. ZooKeys 894: 19-32. https://doi.org/10.3897/zookeys.894.38327