L. H.  Hyman, ?Studies on the morphology, taxonomy, and distribution of North American Triclad Turbellaria. VII. The two species confused under the name Phagocata gracilis, the validity of the generic name Phagocata?, Transactions of the American Microscopical Society, vol. 56, pp. 298-310, 1937.

L. H.  Hyman, ?Studies on the morphology, taxonomy, and distribution of North American Triclad Turbellaria. VIII. Some cave planarians of the United States?, Transactions of the American Microscopical Society, vol. 56, no. 4, pp. 457-477, 1937.