Lai, Y.-T., C.-H. Chang, and J.-H. Chen. “Two New Species of Helobdella Blanchard 1896 (Hirudinida: Rhynchobdellida: Glossiphoniidae) from Taiwan, With a Checklist of Hirudinea Fauna of the Island”. Zootaxa, vol. 2068, no. 1, Apr. 2009, pp. 27–46, doi:10.11646/zootaxa.2068.1.2.