Natural history of animals; . Fig. 12. —Snail Shell. Fig. 13. — Fresh-water Mussel. Other kinds of animals, as Squids, Snails, Mussels,Clams, and Oysters, have neither a backbone nor ajointed body; but the whole body is soft, usuallywith a shell outside, but sometimes without a shell,and they are called MOLLUSKS, from a word whichmeans soft. See Figures 10-13. i6 GENERAL DESCRIPTION OF ANIMALS. Still other kinds of animals, as Sea Cucumbers, SeaUrchins, Sea Stars, Serpent Stars, and Crinoids are

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895