Lai, Y.-T., Chang, C.-H. and Chen, J.-H. 2009. Two new species of Helobdella Blanchard 1896 (Hirudinida: Rhynchobdellida: Glossiphoniidae) from Taiwan, with a checklist of hirudinea fauna of the island. Zootaxa. 2068, 1 (Apr. 2009), 27–46. DOI:https://doi.org/10.11646/zootaxa.2068.1.2.