Studies on the Morphology, Taxonomy, and Distribution of North American Triclad Turbellaria. IV. Recent European Revisions of the Triclads, and Their Application to the American Forms, with a Key to the Latter and New Notes on Distribution
Hyman LH. 1931. Studies on the Morphology, Taxonomy, and Distribution of North American Triclad Turbellaria. IV. Recent European Revisions of the Triclads, and Their Application to the American Forms, with a Key to the Latter and New Notes on Distribution. Transactions of the American Microscopical Society. 50(4):316-335
observations include flatworm species from what is now Great Smoky Mountains National Park and the Blue Ridge Parkway