. Elementary zoology. Zoology. 248 ELEMENTARY ZOOLOGY along coasts are found here and there great mounds made of heaps of clam-shells which have become covered over with soil and vegetation. Such mounds are the old feasting-places of the early coast inhabitants, and the archaeologist often finds in these "kitchen-middens," as. Fig. 104.—A group of marine Pacific Coast molluscs; in upper left-hand corner. Purpura saxicola; next to the right, Littorina scutulata] farthest to right, limpets, Acmara spectrum; left-hand lower corner, Mytilus californianus; in right-hand lower corner the b
. Elementary zoology. Zoology. 248 ELEMENTARY ZOOLOGY along coasts are found here and there great mounds made of heaps of clam-shells which have become covered over with soil and vegetation. Such mounds are the old feasting-places of the early coast inhabitants, and the archaeologist often finds in these "kitchen-middens," as. Fig. 104.—A group of marine Pacific Coast molluscs; in upper left-hand corner. Purpura saxicola; next to the right, Littorina scutulata] farthest to right, limpets, Acmara spectrum; left-hand lower corner, Mytilus californianus; in right-hand lower corner the black shells just above the large clam-shell, Chlorostomum funebrale. (FYom living specimens in a tide pool in the Bay of Monterey, California.) they are called, various relics of the early natives of the continent. Even more widely known that the clams are the oysters {Ostrea virginianti), also members of this class of mol- luscs. The oyster is carefully cultivated by man in many countries. It has its two shells or two shell-halves dis- similar, one valve being hollowed out to receive the body, while the other is nearly flat. The oyster is attached to the sea-bottom by the outside of the hollowed-out valve. When first hatched the young oyster swims freely by means of its cilia; after a few days it attaches itself to. 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York : H. Holt and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
