01342cam a2200325 4500 12743 741011s1972 dcua b f00100 eng 74601366 //r86 00444479 AAE-7580 DLC DLC m.c. n------ MBWW QL391.P7 K43 595/.123/097 QL 391.T K38 Kenk, Roman, 1898- Freshwater planarians (Turbellaria) of North America. [Washington, U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1972. ix, 81 p. illus. 29 cm. $2.50 Biota of freshwater ecosystems identification manual no. 1 Water pollution control research series Prepared by the Oceanography and Limnology Program, Smithsonian Institution, for the Environmental Protection Agency under contract no. 14-12-894. Bibliography: p. 73-77. Planaria. Platyhelminthes North America Identification. Oceanography and Limnology Program (Smithsonian Institution) United States. Environmental Protection Agency. Biota of freshwater ecosystems identification manual no. 1. Water pollution control research series.