Dwellers of the sea and shore dwellersofseasho00crow Year: 1935 The Moon Snail 43 of smaller creatures. But in the case of the majority, the finish will he In the stomachs of the selfsame mussels which serve as prey for the full-grown moon snail. Now, to a certain extent, the two mollusks which I have here reviewed, the mussel and the moon snail, may be taken as representative of their classes. That Is to say, the one Is largely typical of the bivalves, or FREE-SWIMMING LARV^ OF THE MOON SNAIL. (gRE.\TLY ENLARGED.) pelecypods; the other Is an example of the univalves, or gastropods. It Is
Dwellers of the sea and shore dwellersofseasho00crow Year: 1935 The Moon Snail 43 of smaller creatures. But in the case of the majority, the finish will he In the stomachs of the selfsame mussels which serve as prey for the full-grown moon snail. Now, to a certain extent, the two mollusks which I have here reviewed, the mussel and the moon snail, may be taken as representative of their classes. That Is to say, the one Is largely typical of the bivalves, or FREE-SWIMMING LARV^ OF THE MOON SNAIL. (gRE.\TLY ENLARGED.) pelecypods; the other Is an example of the univalves, or gastropods. It Is to be noted, however, that the habits of the various species within each class may differ considerably. For Instance, not all pelecypods lead a stationary life; neither do all gastropods live by preying. The pelecypod mollusks are. In fact, a very extensive group of animals which vary widely even In their struc- ture. It is to this group that also belong the clam, the
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