Freshwater triclads (Turbellaria) of North America. IV. The polypharyngeal species of PhagocataDOI: info:10.5479/si.00810282.80Smithsonian Institution Press; for sale by the Supt. of Docs., U.S. Govt. Print. Off.17
Kenk, Roman. 1970. Freshwater triclads (Turbellaria) of North America. IV. The polypharyngeal species of Phagocata. Washington: Smithsonian Institution Press; for sale by the Supt. of Docs., U.S. Govt. Print. Off.. In Smithsonian Contributions to Zoology, 80. https://doi.org/10.5479/si.00810282.80.