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. Elements of zoölogy : a textbook. Zoology. Conus marmoreux, Gme- liu. China. FIG. Mitraepiscopalis, D'Org. Reduced. Ceylon. Other prosobranchiates have the margin of the aperture entire, and the operculum horny or shelly, and usually spiral. These are called Holostoma, and are mostly plant-. 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 Tenney, Sanborn, 1827-1877. New York : Scribner
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