Penial hooks, Peronia verruculata (unit #3), Peninsular Malaysia A, B [2547] (USMMC 00065) C, D [975] (USMMC 00064). Scale bars: 40 μm (A, C), 20 μm (B), 6 μm (D).

 
 
  Part of: Dayrat B, Goulding TC, Apte D, Aslam S, Bourke A, Comendador J, Khalil M, Ngô XQ, Tan SK, Tan SH (2020) Systematic revision of the genus Peronia Fleming, 1822 (Gastropoda, Euthyneura, Pulmonata, Onchidiidae). ZooKeys 972: 1-224. https://doi.org/10.3897/zookeys.972.52853