Turbellarians name details
original description
(of Prostomum marginatum Leidy, 1847) Leidy, J. (1847). Description of two new species of Planaria. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 3(10): 252.
page(s): 251 [details] 
new combination reference
Stringer, C. F. (1918). Chapter XII. The free-living flatworms (Turbellaria). <em>In: Ward, H.B. & Whipple G.C. (Eds.). Freshwater Biology. John Wiley & Sons, New York. 1111 pages.</em>
page(s): 363 [details] 