Planaria unionicola Woodworth 1898

Woodworth 1898. Contributions from the Zoological Laboratory. lxxxiii. Contributions to the Morphology of the Turbellaria. II. On some Turbellaria from Illinois. Bulletin of the Museum at Harvard College, xxxi 1898: pp. 1-16

Woodworth 1897. Contributions to the morphology of the Turbellaria. II. On some Turbellaria from Illinois. Bulletin of the Museum at Harvard College, xxxi 1897: pp. 3-16