01449oam 2200445 a 450 991070450730332120130520160203.0(CKB)5470000002442636(OCoLC)465226567(EXLCZ)99547000000244263620091112d1977 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierFreshwater triclads (Turbellaria) of North America, IX, the genus Sphalloplana[electronic resource] /Roman KenkWashington, D.C. :Smithsonian Institution Press,1977.1 online resource (iii, 38 pages) illustrationsSmithsonian contributions to zoology ;no. 246Title from title screen (viewed Nov. 10, 2009).Includes bibliographical references (pages 25-26).Freshwater triclads SphalloplanaPlatyhelminthesNorth AmericaSphalloplana.PlatyhelminthesKenk Roman1898-1988.1399014Smithsonian Institution.MUUMUUOCLCQOCLCOCUSOCLCQGPOBOOK9910704507303321Freshwater triclads (Turbellaria) of North America, IX, the genus Sphalloplana3463558UNINA