Penial hooks, Peronia willani, Australia, Northern Territory A holotype, [1628 H] (NTM P.57625) B same as A; C [1620] (NTM P.57626) D [1626] (NTM P.57627) E same as C; F same as D. Scale bars: 40 μm (A), 4 μm (B, E, F), 60 μm (C, 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