. The chordates. Chordata. Fig. 580. Skull of toothed whale, Steno rostratus. (Courtesy, American Museum of Natural History, New York.). Fig. 581. Sperm whale, Physeter macrocephalus. (Courtesy, Flower and Lydekker: "Introduction to the Study of Mammals," London, A. & C. Black. Ltd.). 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 Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : Blakiston

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