. Zoology : for students and general readers . Zoology. 57:^ zoo LOGY. the cloaca, as in birds. Tlie sternum is provided witli a pecu- liar T-shaped bone, and there are important features in the. brain separating them from the members of the higher sub- classes. There are several characters allying them to the. 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York : Henry Holt

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1879