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Updated: June 16, 2025
At that ancient epoch not only were the vertebrate, molluscous, and arthropod types distinctly and clearly differentiated, but highly developed forms had been produced in each of these sub-kingdoms. But Professor Huxley has kindly informed me that he has discovered a jugular fish in the Permian deposits.
But the stranger, though alive, was evidently in a molluscous, invertebrate condition. He could not sustain himself. She still held him up, a little more at arm's-length, and all at once the reaction from extreme anxiety brought a gush of tears to her eyes. "Don't cry," says Wade, vaguely, and still only half-conscious. "I promise never to do so again."
Hesper was human after all, though her humanity was only molluscous as yet, and it is not in the power of humanity in any stage of development to hold itself indifferent to the pleasure of being loved. Also, poor as is the feeling comparatively, it is yet a reflex of love itself the shine of the sun in a rain-pool. She walked up to Mary, holding out her hand.
In every part one meets hermit crabs of more than one species, carrying on their backs the shells which they have stolen from the neighbouring beach. The large claws or pincers of some of these crabs are most beautifully adapted, when drawn back, to form an operculum to the shell, nearly as perfect as the proper one originally belonging to the molluscous animal.
Never in his life had Paul felt so wholly tender as he did then towards Annette. He had begun to read so many new meanings into her of late. She seemed no longer the molluscous little creature he had once thought her, but a woman, capable of much suffering, of some determination, of real affection.
They belong to that species of molluscous perforators which excavate holes in the hardest stone; their shell is rounded at both ends, a feature which is not remarked in the common mussel. Pencroft and Herbert made a good meal of the lithodomes, which were then half opened to the sun.
We have seen, however, that there are many instances of wonderfully close similarity which are not due to genetic affinity; the most notable instance, perhaps, being that brought forward by Mr. Murphy, namely, the appearance of the same eye-structure in the vertebrate and molluscous sub-kingdoms.
MOLLUSCOUS SHELL DEPOSITS. The forms of marine life of importance in rock making thrive best in clear water, where little sediment is being laid, and where at the same time the depth is not so great as to deprive them of needed light, heat, and of sufficient oxygen absorbed by sea water from the air.
Some sea-plants, zoöphytes, infusory animalcules, and a few of the molluscous tribe, all low down in the order of being, but important from their immense numbers and joint action, commenced their work of absorbing the carbonic acid with which the air was overcharged, and building up vast piers and mounds of stone from their own remains.
The loess is generally devoid of fossils, although in many places they are abundant, consisting of land-shells, all of living species, and comprising no small part of the entire molluscous fauna now inhabiting the same region.
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