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By: Hyman, Libbie Henrietta,Edition:Publication info: New York, N.Y, American Museum of Natural History, [1957]Volume: no. 1862Series:Holding Institution: American Museum of Natural History LibrarySubjects: 59.51,23(729.8) Barro Colorado island Classification Geoplanidae Panama Platyhelminthes Trinidad Trinidad and Tobago TurbellariaBHL Collections: