Richardson, D. J., Moser, W. E., Hammond, C. I., Lazo-Wasem, E. A., McAllister, C. T., & Pulis, E. E. (2017). A new species of leech of the genus Placobdella (Hirudinida, Glossiphoniidae) from the American alligator (Alligator mississippiensis) in Mississippi, USA. Zookeys.

Richardson, Dennis J., William E. Moser, Charlotte I. Hammond, Eric A. Lazo-Wasem, Chris T. McAllister, and Eric E. Pulis. "A New Species of Leech of the Genus Placobdella (Hirudinida, Glossiphoniidae) From the American Alligator (Alligator mississippiensis) in Mississippi, USA." Zookeys 2017.

Richardson, Dennis J., et al. "A New Species of Leech of the Genus Placobdella (Hirudinida, Glossiphoniidae) From the American Alligator (Alligator mississippiensis) in Mississippi, USA." Zookeys 2017.