Bivalve and univalve mollusca seem to be rare at the greatest depths; but starfishes, sea urchins and other echinoderms, zoophytes, sponges, and protozoa abound.

The ocean swarmed with Mollusca, and particularly entomostracous Crustacea, small whales, and porpoises; the sea abounded with penguins and seals, and the air with birds; the animal kingdom was ever present, the larger creatures preying on the smaller, and these again on smaller still; all seemed carnivorous.

The Mid-Atlantic swarms with pelagic Mollusca, and, in moderate depths, the shells of these are constantly mixed with the Globigerina ooze, sometimes in number sufficient to make up a considerable portion of its bulk.

We find, first, that the shells of pteropods and other surface Mollusca which are constantly falling on the bottom, are absent, or, if a few remain, they are brittle and yellow, and evidently decaying rapidly.

These shells of Mollusca decompose more easily and disappear sooner than the smaller, and apparently more delicate, shells of rhizopods.

The bag contained examples, those with calcareous shells rather stunted, of most of the characteristic deep-water groups of the Southern Sea, including Umbellularia, Euplectella, Pterocrinus, Brisinga, Ophioglypha, Pourtalesia, and one or two Mollusca.

By the action of untold ages the connecting cement is worn away from between the pebbles, leaving them prominent; and wherever the attrition of the sea has loosened one from its bed, the hollow has become the habitation of Mollusca and Algae.

The shell-builders have soft, juicy bodies, and they are put in one big division of the animal kingdomthe mollusca, which only means soft-bodied.

Much light has been thrown on this curious problem since our return, by an American naturalist, Mr. Bland, in a paper read before the American Philosophical Society, on 'The Geology and Physical Geography of the West Indies, with reference to the distribution of Mollusca.'

All the oftener, however, did we see another inhabitant of the sea, namely, that beautiful mollusca, the physolida, called by the sailors Portugiesisches Segel-schiff; (Portuguese sailing-ship.)

Very soon afterwards a mollusca had been captured, and placed in a tub filled with sea water.

Its water contains so much salt, that neither fish nor mollusca can live in it.

All kinds of shell-fish are called "mollusca," have white blood, and breathe not only in the water, but also in the air.

A goodly percentage of the earlier and nearly half of the later tertiary mollusca, according to Des Hayes, Lyell, and, if we mistake not, Bronn, still live.

Let it be noted, also, that those tertiary species which have continued with little change down to our days are the marine animals of the lower grades, especially mollusca.

(Indeed!)"The usual classification of animals, is that of Vertebrata, Articulata, Mollusca, and Radiata.

It is popularly termed a fish, though it is, in fact, a worm, belonging to the order termed Mollusca, (Molluscus, soft,) from the body being of a pulpy substance and having no skeleton.

But the joint hosts of the fishes may be the mollusca or other creatures on which they feed, and hence the new fields for Atkinson in Nelson's catches.

An abridged check list and bibliography of west North American marine Mollusca.

An abridged check list and bibliography of west North American marine Mollusca.

He was born at Montbelliard in 1769, a year which gave to so many remarkable mena Napoleona Chateaubrianda Wellingtona Humboldt, &c. and his first discoveries were on the Mollusca, and shook to its base the zoological classification which then universally prevailed.

At the same period he published a series of Memoirs on the Anatomy of the Mollusca, and devoted his attention to a detailed examination of the fossil remains of the bones of mammiferous animals; he particularly examined the numerous fossils in the environs of Paris, assisted in the geological part of his task by his friend M. A. Brogniart.

There are men, for instance, who would gladly burn Professor Ray Lankester at Smithfield for his treatment of the Mollusca in the Encyclopaedia.

They are covered with large quantities of mollusca, which are also abundant in the sea in their vicinity.

Radiata, mollusca, feathers, flowers, ferns, mosses, palms, pines, grain-fields, leaves of cedar, chestnut, elm, acanthus: these and multitudes of other objects are figured on your frosty window; on sixteen different panes I have counted sixteen patterns strikingly distinct, and it appeared like a show-case for the globe.