. Beginners' Zoology . Fig. 206. — Pearly Nautilus. (Shell sawedthrough to show chambers used when it wassmaller, and siphuncle, 5, connecting them. Ten-tacles, T.) The octopus is moresluggish than the species calleddevilfish sometimes have a spread of arms of twenty-five pear/y nautilus (Fig. 206) and the female of the paper argo-naut (Fig. 207) are examples of cephalopods that *have cuttlefish is closely related to the Fig. 207.—Paper Argonaut (female). X \i { the animal is three times as long and broad as figure).

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