. Introduction to zoology; a guide to the study of animals, for the use of secondary schools;. FIG. 1G9. — My a arenaria, the New England clam. At the left the foot isseen ; at the right, the siphon. One-half nat. size. From Yerrill. Inverte-brates of Vineyard Sound. 1 Venus, the goddess of love. 184 ZOOLOGY its name mercenaria to the fact that the purple-coloredpatch seen on the margin of the shell was used as money. FIG. 170.— Ie/ias mei\jiuifi<i, the hard-shelled clam. At the left the footprotrudes from the shell; at the ri^ht the siphons. Nat. size. From Verrill, Invertebrates of Vineya
. Introduction to zoology; a guide to the study of animals, for the use of secondary schools;. FIG. 1G9. — My a arenaria, the New England clam. At the left the foot isseen ; at the right, the siphon. One-half nat. size. From Yerrill. Inverte-brates of Vineyard Sound. 1 Venus, the goddess of love. 184 ZOOLOGY its name mercenaria to the fact that the purple-coloredpatch seen on the margin of the shell was used as money. FIG. 170.— Ie/ias mei\jiuifi<i, the hard-shelled clam. At the left the footprotrudes from the shell; at the ri^ht the siphons. Nat. size. From Verrill, Invertebrates of Vineyard Sound. ( wampum) by the Indians. The shell is extremely heavy,and usually nearly circular in outline (Fig. 170). The Arcidae 1 and their allies include several species hav-ing a more or less elongatedhinge - joint crowded withmany small teeth. Our com-mon Eastern species (, Fig. 171) has brightred blood and is commonlyknown as the bloody Mytilidae 2 include Fi(i. 171. — Arcapexatu, the bloody clam. Nat. size. Photo, by the mussels, which are the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1900
