Browsing by Author "Ball, Ian R."
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Item Systematic and biogeographical relationships of some Dugesia species (Tricladida, Paludicola) from Central and South America. American Museum novitates ; no. 2472(New York, N.Y. : American Museum of Natural History, 1971) Ball, Ian R.; Hynes, H. B. N. (Hugh Bernard Noel), 1917-