Peronia okinawensis, Japan, Okinawa, holotype [696-4 H] (UF 352288) A digestive system, dorsal view, the arrow indicates the orientation of the transitional loop B posterior, hermaphroditic (female) reproductive system C anterior, male, copulatory apparatus. Scale bars: 3 mm (A–C). Abbreviations: ag accessory penial gland, dd deferent duct, ddg dorsal digestive gland, fgm female gland mass, hg hermaphroditic gland, i intestine, ms muscular sac, ov oviduct, pdg posterior digestive gland, ps penial sheath, rm retractor muscle, rs receptaculum seminis, sp spermatheca, st stomach, v vestibule.

  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.