281] TURBELLARIA FROM THE MISSISSIPPI BASIN— HIGLEY 87 



Young, R. T. 



1912. The Epithelium of Turbellaria. Jour. Morph., 23:255-68. 



Zacharias, Otto 



1902. Eine neue Turbellarienspecies (Sienostomum turgidum). ZooL Anz., 26:41-2. 



