Reinhardorhynchus ryukyuensis sp. nov. A, B. Micrograph and drawing of a live animal. C. Detail of the atrial organs in a live specimen. D. Male copulatory organ in a whole-mounted specimen fixed in lactophenol. E, F. Drawing and micrograph of the sclerotized parts of the male copulatory organ in the holo/paratype. G, H. Drawing and micrograph of the sclerotized parts of the male copulatory organ in the holo/paratype.

 
 
  Part of: Tsuyuki A, Reyes J, Oya Y, Wakeman KC, Leander BS, Van Steenkiste NWL (2024) Marine microturbellarians from Japan, with descriptions of two new species of Reinhardorhynchus (Platyhelminthes, Rhabdocoela, Koinocystididae). Zoosystematics and Evolution 100(3): 877-895. https://doi.org/10.3897/zse.100.120244