. Fresh-water rhizopods of North America. Rhizopoda; Freshwater animals. us. GEOLOGICAL SURVEY OF' THE TERRITORIES. PLATE in. '4 ** ' \. / y' C 6 ff ^;y 0',-] y e^ â >rit- #:;-^.: //. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Leidy, Joseph, 1823-1891. Washington, Government Printing Office

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectrhizopo, bookyear1879