Penis, distal part free in the vestibule, Wallaconchis gracile, Indonesia, Bali, scale bar 40 μm [3106] (UMIZ 00056).

 
 
  Part of: Goulding TC, Khalil M, Tan SH, Dayrat B (2018) Integrative taxonomy of a new and highly-diverse genus of onchidiid slugs from the Coral Triangle (Gastropoda, Pulmonata, Onchidiidae). ZooKeys 763: 1-111. https://doi.org/10.3897/zookeys.763.21252