. Elements of zoölogy : a textbook. Zoology. •RCHIXOIDS. 447 great number of curious little organs called Pedicillarive. They look like a stem ending in a knob ; but the knob is composed of three pieces or blades, which open and shut tightly, thus forming a sort of pincers. The uses of FIG. --^^m f> Small portion of a cross section of a spine of a Sea-urchin. FIG. 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 work


. Elements of zoölogy : a textbook. Zoology. •RCHIXOIDS. 447 great number of curious little organs called Pedicillarive. They look like a stem ending in a knob ; but the knob is composed of three pieces or blades, which open and shut tightly, thus forming a sort of pincers. The uses of FIG. --^^m f> Small portion of a cross section of a spine of a Sea-urchin. FIG. 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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