Introduction to zoology; a guide to the study of animals, for the use of secondary schools; Year: 1900 (1900s) Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866- Subjects: Zoology Publisher: New York, Macmillan company

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Identifier: introductiontozo00dave Title: Introduction to zoology; a guide to the study of animals, for the use of secondary schools; Year: 1900 (1900s) Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866- Subjects: Zoology Publisher: New York, Macmillan company London, Macmillian and co., ltd. Contributing Library: MBLWHOI Library Digitizing Sponsor: MBLWHOI Library
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Text Appearing Before Image: species commonly known in theNorth as hen-clams and surf-clams. They are more ellip-tical and larger than the common hard-shelled clam or quo-hog, and have a proportionately lighter shell (Fig. 168).They are not often used as food because they become verytough when cooked. The Myidae3 include the common clam of New England,Mya arenaria, abundant along our whole Eastern coast andused as food chiefly in New England. These clams occurin great numbers in every mud-flat. Their great siphon isextended at high tide to the surface of the ground, so as totake in and throw out water (Fig. 169) ; but at low tide it isretracted, and the clam lies invisible in its burrow. Thisclam was much prized by the Indians, as the great, ancientshell-heaps along the coast testify. In 1892 the clam com- , a channel or tube. 2 /xd/crpa, a baking-trough. 3 fj.va, Greek name for a kind of mussel. THE FRESH-VATER CLAM AND ITS ALLIES 183 merce for New England was estimated to be worth nearlyhalf a million dollars. Text Appearing After Image: FIG. Iti8. —Mactra solMisshna, the Eastern hen clam. Nat. size. From Gould-Binney. The Veneridae l include the hard-shelled clam or u fjiio-hog of the Indians. Venus mercenaria is the commonestspecies, and is most abundant south of Cape Cod. It owes
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