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.