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Updated: October 4, 2026
Again, certain species of worms blend the animal with the insect tribe, those which are covered with a horny substance unite them with the crustaceae. These approach fish on the one hand, and reptiles on the other, whilst reptiles in some species become moluscs." "And what is a molusc?" inquired Willis.
"The term molusc is applied by naturalists to creatures which have no vertebrae, as for example, the cuttle fish and the oyster." "I believe you, Mr. Wolston; but if I had asked Ernest or Jack, they would have told me that it was a commodore or an admiral." "Reptiles, I was going to say, are connected at one end of the chain with moluscs by the slug, and at the other with fish by the eel.