Life on the Seashore; Or, Animals of Our Coasts and Bays

Life on the Seashore; Or, Animals of Our Coasts and Bays

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ...of dirt and passing them along where they will wash off. The psdicellarioe can be seen in operation with a low magnifying power, but to understand their shape and structure it is necessary to pull some off and put them under a higher magnifying power. The sea-egg lives on plants which it piaws with fine sharp teeth, with which its mouth is provided, and which are supported by a complicated framework inside the body. In confinement the sea-eggs need frequent changes of water and are constantly discharging balls of excrement which help to make it dirty. The porous plate which covers the entrance to the water system is found also in the sea-egg near the middle of the upper side, Fig. 86. The fine little holes in a circle around this end are the openings through which the eggs are dis Fig. 78 charged. When the sea-eggs die they soon decay, and the spines drop off leaving a thin shell covered with little knobs, where the spines were, and rows of holes where the suckers came out. In this condition they are washed up on the beaches and are better known among collectors of curious things than in their natural condition. S Another animal allied to the -ea-egg is the "sand dollar," Fig. 87, a flattened-out echinus, with a fur of little spines and very small suckers among them. It lives on sandy bottoms seldom above low water mark and partly buried in the sand. When living, its color is dark purple which soon fades to green and gray when it is taken out of the water. "The fishermen on the coast of Maine and New Brunswick sometimes prepare an indelible marking ink from these sand dollars by rubbing off the spines and skin, and after pulverizing making the mass into a thin paste with water." Related to these animals are the softbodied...
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Product details

  • Paperback | 28 pages
  • 189 x 246 x 2mm | 68g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236602536
  • 9781236602534