Figure 3 from: Tsuyuki A, Kajihara H (2020) A giant new species of Enchiridium (Polycladida, Prosthiostomidae) from southwestern Japan. ZooKeys 918: 15-28. https://doi.org/10.3897/zookeys.918.47061

Figure 3 Enchiridium daidai sp. nov., ICHUM 5993 (holotype), schematic diagram (A) and sagittal sections (B–D), anterior to the right. A Schematic diagram of copulatory complex B a common muscle sheath/bulb enclosing two prostatic vesicles and penis stylet C ejaculatory duct penetrating a common muscle sheath/bulb D female copulatory apparatus. Abbreviations: cg cement glands cp cement pouch ed ejaculatory duct fg female gonopore it intestine ma male atrium mg male gonopore ms muscle sheath/bulb pd prostatic duct pp penis papilla ppo penis pouch pv prostatic vesicle spv spermiducal vesicle st stylet sv seminal vesicle va vagina. Scale bars: 500 µm.