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Crustacea   Listen
Crustacea  n. pl.  (Zool.) One of the classes of the arthropods, including lobsters and crabs; so called from the crustlike shell with which they are covered. Note: The body usually consists of an anterior part, made up of the head and thorax combined, called the cephalothorax, and of a posterior jointed part called the abdomen, postabdomen, and (improperly) tail. They breathe by means of gills variously attached to some of the limbs or to the sides the body, according to the group. They are divisible into two subclasses, Entomostraca and Malacostraca, each of which includes several orders.

Collaborative International Dictionary of English 0.48

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"Crustacea" Quotes from Famous Books

... was ever more completely enveloped in his hard coat-of-mail, with its jointed greaves and overlapping scales, than is the lobster in its crustaceous covering; with this exception, that the warrior could at pleasure unbuckle himself from his armour, whereas the body and limbs of the crustacea are completely incased in hollow cylinders, firmly and accurately jointed, from which there is no such ready release. Now, as this shelly integument envelops them from their earliest youth, and as it does not expand and grow, the natural growth ...
— Chambers's Edinburgh Journal, No. 433 - Volume 17, New Series, April 17, 1852 • Various

... confuse this Filaria with the Guinea worm, Filaria medinensis, which runs up to ten and twelve feet in length, and whose habits are different. It is more sedentary, but it is in the drinking water inside small crustacea (cyclops). It appears commonly in its human host's leg, and rapidly grows, curled round and round like a watch-spring, showing raised under the skin. The native treatment of this pest is very cautiously to open the skin ...
— Travels in West Africa • Mary H. Kingsley

... able work published in 1852 by Dr. Kelaart of the army medical staff[1], which is by far the most valuable that has yet appeared on the Singhalese fauna. Co-operating with him, Mr. Layard has supplied a fund of information especially in ornithology and conchology. The zoophytes and Crustacea have I believe been partially investigated by Professor Harvey, who visited Ceylon in 1852, and more recently by Professor Schmarda, of the University of Prague. From the united labours of these gentlemen and others interested in the ...
— Sketches of the Natural History of Ceylon • J. Emerson Tennent

... truth formidable monsters. Professor E. Forbes gives the following humorous description of the destructive propensities of some medusae which he had captured in the Zetland seas:—'Being kept,' he says, 'in a jar of salt-water with small crustacea, they devoured these animals, so much more highly organised than themselves, voraciously; apparently enjoying the destruction of the unfortunate members of the upper classes with a truly democratic relish. One of them even ...
— Chambers' Edinburgh Journal - Volume XVII., No 423, New Series. February 7th, 1852 • Various

... insects, worms, mollusca, and freshwater crustacea. In Bell's 'British Quadrupeds' its mode of poking about amongst stones in search of fresh-water shrimps (Gammarus pulex) is well described. Mr. F. Buckland states that he once dissected a water-shrew and found the intestines to contain a dark fluid pulpy matter, which, ...
— Natural History of the Mammalia of India and Ceylon • Robert A. Sterndale

... amongst the genera, onji is the root-word for insects, anji for fish, enji for birds, and inji for beasts. Taking anji—or fish—for my example, because it is the shortest, I may mention that he divides fish into nine "differences," two of viviparous, five of oviparous, one of crustacea, and one of scaly river fish. I will give one example of each class, merely pointing out that the letters anj occur in the middle of each name. The final letters give the species, and the initials the specific fish indicated, thus: ...
— Personal Recollections of Birmingham and Birmingham Men • E. Edwards

... vitality, for it resists changes of temperature to a remarkable degree. Vaucheria affords a choice hunting ground to the microscopist, for its tangled masses are the home of numberless infusoria, rotifers, and the minuter crustacea, while the filaments more advanced in age are usually thickly incrusted with diatoms. Here, too, is a favorite haunt of the beautiful zoophytes, Hydra vividis and H. vulgaris, whose delicate tentacles may be seen gracefully waving ...
— Scientific American Supplement, No. 460, October 25, 1884 • Various

... organisation of these mollusca and crustacea, and looking at their very complex nature, that it does indeed require a very strong imagination to conceive that these were the first created of all living things. And you must take into consideration the fact that we ...
— Darwiniana • Thomas Henry Huxley

... century, the period of Darwin, the great importance and interest of the fossil beds came to be better appreciated. Dr. Oswald Heer, professor at Zurich, an accomplished botanist and entomologist, did perhaps nine tenths of the work, describing plants, insects, arachnids and part of the Crustacea. The fishes were described by Agassiz, and later by Winkler. The remaining vertebrates were principally made known by E. ...
— Popular Science Monthly Volume 86

Words linked to "Crustacea" :   subclass Copepoda, Copepoda, crustaceous, Arthropoda, subclass Ostracoda, Cirripedia, phylum Arthropoda, subclass Cirripedia, class Crustacea, subclass Branchiopoda, Malacostraca, class

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