Orobdella masaakikuroiwai sp. n., holotype, KUZ Z694. A Dorsal view of reproductive system including ventral nervous system. B Dorsal, C lateral, and D ventral views of male atrium: B including position of ganglion XI. E Dorsal view of female reproductive system including position of ganglion III. Scale bars, 1 mm (A) and 0.25 mm (B–E). Abbreviations: ac, atrial cornua; at, atrium; cod, common oviduct; ed, ejaculatory duct; ep, epididymis; gp, gastropore; od, oviduct; ov, ovisac; and ts, testisacs.