Peroxidases or oxidases of plants, haemoglobin, haemocyanin, extracts of mussels, manganese containing blood of various marine crustacea and mollusks will give no light on mixing with luciferin.
Its repeal is by no means necessary, as the matter can be adjusted by merely adding "except for the taking of mollusks from the areas set apart and leased for the cultivation of mollusks.
About the same time Ernest Ingersoll also writes:-- In the Acushnet River and all along the western shore of Buzzards Bay these little mollusks abound, and their catching has come to be of considerable importance in that locality.
This example illustrates the nature of many other known series of mollusks and of brachiopods, extending over longer intervals and connecting more widely separated ages like the Secondary and the present period.
Jellyfish and worms and naked mollusks are examples of the numerous orders of lower animals having no hard parts to be preserved, and so all or nearly all of the extinct species belonging to these groups can never be known.
The popularity of the edible varieties of mollusks and crustaceans mentioned depends largely on whether they can be easily obtained and whether they are pleasing to the local or individual taste.
The three varieties of mollusks are closely related in their composition and in their use as food, but as oysters are probably used more commonly than the others they are considered first.
They frequent wooded country near ponds and lakes, feeding on water insects and mollusks in the coves.
They feed on mollusks and marine insects which they generally reach by tipping in shallow water.
A division of nudibranchiate mollusks having gills upon the back.
A division of bivalve mollusks including the oysters and allied shells.
We shall also see that just as the leading groups of Mollusks and Crustaceans seem to have had no ancestors, so it is with the groups of Vertebrates which take their places.
If these older Conodonts were really teeth of fishes, they carry the introduction of these nearly as far back as that of the Mollusks and Crustaceans.
Similar statements may be made with regard to other mollusks of the Pliocene and Modern periods, and there are even species which extend unchanged from the early Eocene.
Thus the decadence of these higher fish begins with the incoming of the reptiles, just as the decadence of the higher Mollusks and predaceous Crustaceans began with the incoming of the fishes.
A group of bivalve mollusks destitute of siphons, as the oyster; the asiphonate mollusks.
A genus of large univalvemollusks abundant in the arctic seas.
A genus of small glassy heteropod mollusks found swimming at the surface in mid ocean.
This animal resides within two small valves, not unlike those of a bivalve shell, and moults its integuments periodically, which the conchiferous mollusks do not.
In regard to the lithodomi above alluded to, these bivalve mollusks are well known to have the power of excavating holes in the hardest limestones, the size of the cavity keeping pace with the growth of the shell.
A division of gastropod mollusks having a large number of long, divergent, hooklike, lingual teeth in each transverse row.
And we can now form a truer estimate of the high scientific accuracy of Lyell's ingenious division of the Tertiary beds, according to the percentage of living or extinct Mollusks which they contain.
The Mollusks and Brachiopods would afford us examples too numerous to mention.
Before closing this brief sketch of the Land Mollusks we must not neglect to mention their wonderful protection against the cold of winter and the heat of summer.
Its principal food consists of earth-worms, although it will attack other mollusks and even its own species.
A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or \'91stivation.
A division of marine gastropod mollusks in which the radula are converted into poison fangs.
These mollusks are beautifully colored with blue and silvery white.
Hence, by extension, anymollusks having such a covering.
A genus of nudibranch mollusks having clusters of branchial papill\'91 along the back.
A genus of marine bivalve mollusks having thin, delicate, and often handsomely colored shells.
An extensive division of gastropod mollusks in which the odontophore is long and narrow, and usually bears seven rows of teeth.
These mollusks have an elongated, turreted shell, composed of many whorls.
A Linnean genus of mollusks having a conical shell.
A group of gastropod molluskshaving a tubular shell.
An extensive tribe of bivalve mollusks of which the genus Venusis the type.
The Mollusks represent circulation; and his division of this type into classes, according to what he considers the higher or lower organization of the heart, agrees with the ordinary division into Acephala, Gasteropoda, and Cephalopoda.
But while all admit that Vertebrates are highest and Radiates lowest, how do the Articulates and Mollusks stand to these and to each other?
This would mark a real division, for the first heap would have the clam-like mollusks which we call bivalves, and the second would have those coiled gastropod mollusks that we may call sea-snails.
One would think that, since a family of oysters is so enormously large, these creatures must be the most plentiful mollusksin the sea.
One of these mollusks is called the prickly chiton, because it is covered all over with sharp spines, like a hedgehog.
Some people have supposed, for example, that it is used in spearing fish, or in digging up buried mollusks from the mud at the bottom of the sea.
Any one of numerous species of terrestrial pulmonate mollusks belonging to Limax and several related genera, in which the shell is either small and concealed in the mantle, or altogether wanting.
A genus of oceanic nudibranchiate mollusks having the small branched gills situated on the upper side of four fleshy lateral lobes, and on the median caudal crest.
A tribe of bivalve mollusks in which the posterior mantle border is prolonged into two tubes or siphons.
Any one of several species of nudibranchiate mollusks of the genus Doris and allied genera, having a smooth, thick, convex yellow body.
When originally established, it included a heterogenous group of mollusks having shieldlike shells, such as Haliotis, Fissurella, Carinaria, etc.
Boring, or hollowing out, rocks; -- said of certain mollusks which live in holes which they burrow in rocks.
Hence, by extension, any mollusks having such a covering.
In color and form these mollusks closely imitate the fronds of sargassum and other floating seaweeds among which they live.
The shells of mollusks probably came into use as utensils at a very early date, and mutually with products of the vegetable world afforded natural vessels for food and water.
The flinty substance of the shells of mollusks has been a favorite material at all times and with all peoples.
The first Key of United States Mollusks ever published.
Preliminary Catalogue of the Shell-Bearing Marine Mollusks and Brachiopods of the southeastern coast of U.
How should one explain the origin of uncrusted mollusks from crusted ones through the struggle for existence, since in such a contest the latter must have had far greater prospect of survival than the former?
But, although in all these highly-organised head-footed mollusks the same general build prevails, it is admirably modified in each of them to suit certain habits and necessities.
The sexual parallelism is constant among nearly all vertebrates and arthropodes; it extends to identity among hermaphrodite mollusksif one then compare not two sexes but two individuals.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mollusks" in a variety of sentences. We hope that you will now be able to make sentences using this word.
