Map showing the collection localities of the specimens examined in this study. Open circle (5) indicates the type locality of the new species, Orobdella naraharaetmagarum sp. n., and closed circles (1–4) indicate additional localities.

  Part of: Nakano T (2016) A new quadrannulate species of Orobdella (Hirudinida, Arhynchobdellida, Orobdellidae) from western Honshu, Japan. ZooKeys 553: 33-51.