. Elements of zoölogy. Zoology. Fig. 35.—Skeleton of sea-urchin without spines, m, mouth; f h, foot-holes; wh, madre- poric plate; e, eyes ; s, sock- ets of large spines. covered with about 4,000 spines, each of which is made FlG of pediceUaria. up of hollow tubes, and works Highly magnified. on a ball-and-socket plan, s. Among these spines are over 2,000 suckers, or feet, of three different kinds : 1, suckers proper ; 2, and most frequently found near the mouth, pedicellariae (Fig. 36), whose calca- reous jaws are continually opening and shutting in loco- motion and defense ; and 3,
. Elements of zoölogy. Zoology. Fig. 35.—Skeleton of sea-urchin without spines, m, mouth; f h, foot-holes; wh, madre- poric plate; e, eyes ; s, sock- ets of large spines. covered with about 4,000 spines, each of which is made FlG of pediceUaria. up of hollow tubes, and works Highly magnified. on a ball-and-socket plan, s. Among these spines are over 2,000 suckers, or feet, of three different kinds : 1, suckers proper ; 2, and most frequently found near the mouth, pedicellariae (Fig. 36), whose calca- reous jaws are continually opening and shutting in loco- motion and defense ; and 3, stalked button-like bodies called sphceridia, probably organs of taste. The same. 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 Holder, Charles Frederick, 1851-1915; Holder, Joseph Bassett, 1824-1888, joint author. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
