See also:CRAYFISH (Fr. ecrevisse)
, the name of See also:freshwater crustaceans closely allied to and resembling the lobsters, and, like them, belonging to the See also:- ORDER
- ORDER (through Fr. ordre, for earlier ordene, from Lat. ordo, ordinis, rank, service, arrangement; the ultimate source is generally taken to be the root seen in Lat. oriri, rise, arise, begin; cf. " origin ")
- ORDER, HOLY
order Macrura
.
They are divided into two families, the Astacidae and Parastacidae, inhabiting respectively the See also:northern and the See also:southern hemispheres
.
The crayfishes of See also:England and See also:Ireland (Astacus, or Potamobius, pallipes) are generally about 3 or 4 in. See also:long, of a dull See also:green or brownish See also:colour above and paler See also:- BROWN
- BROWN, CHARLES BROCKDEN (1771-181o)
- BROWN, FORD MADOX (1821-1893)
- BROWN, FRANCIS (1849- )
- BROWN, GEORGE (1818-188o)
- BROWN, HENRY KIRKE (1814-1886)
- BROWN, JACOB (1775–1828)
- BROWN, JOHN (1715–1766)
- BROWN, JOHN (1722-1787)
- BROWN, JOHN (1735–1788)
- BROWN, JOHN (1784–1858)
- BROWN, JOHN (1800-1859)
- BROWN, JOHN (1810—1882)
- BROWN, JOHN GEORGE (1831— )
- BROWN, ROBERT (1773-1858)
- BROWN, SAMUEL MORISON (1817—1856)
- BROWN, SIR GEORGE (1790-1865)
- BROWN, SIR JOHN (1816-1896)
- BROWN, SIR WILLIAM, BART
- BROWN, THOMAS (1663-1704)
- BROWN, THOMAS (1778-1820)
- BROWN, THOMAS EDWARD (1830-1897)
- BROWN, WILLIAM LAURENCE (1755–1830)
brown or yellowish below
.
They
See also:Crayfish (Cambarus sp.) from the See also:Mississippi See also:River
.
(After See also:Morse.)
are abundant in some See also:rivers, especially where the rocks are of a calcareous nature, sheltering under stones or in burrows which they dig for themselves in the See also:banks and coming out at See also:night in See also:search of See also:food
.
They are omnivorous feeders, killing and eating See also:insects, snails, frogs and other animals, and devouring any carrion that comes in their way
.
It is stated that they sometimes come on See also:land in search of See also:vegetable food
.
On the See also:continent of See also:Europe, Astacus pallipes occurs chiefly in the See also:west and See also:south, being found in See also:France, See also:Spain, See also:Italy and the
388
See also:Balkan See also:Peninsula
.
It is known in France as ecrevisse d pattes blanches and in See also:Germany as Steinkrebs, and is little used as food
.
The larger Astacus fluviatilis (ecrevisse d pattes rouges, Edelkrebs) is not found in See also:Britain, but occurs in France and Germany, southern See also:Sweden, See also:Russia, &c
.
It is distinguished, among other characters, by the red colour of the under See also:side of the large claws
.
It is the See also:species most highly esteemed for the table
.
Other species of the genus are found in central and eastern Europe and as far See also:east as See also:Turkestan
.
Farther east a See also:gap occurs in the See also:distribution and no crayfishes are met with till the See also:basin of the See also:Amur is reached, where a See also:group of species occurs, extending into northern See also:Japan
.
In See also:North See also:America, west of the Rocky Mountains, the genus Astacus again appears, but east of the See also:watershed it is replaced by the genus Cambarus, which is represented by very numerous species, ranging from the See also:Great Lakes to See also:Mexico
.
Several See also:blind species inhabit the subterranean See also:waters of caves
.
The best known is Cambarus pellucidus, found in the See also:Mammoth See also:Cave of See also:Kentucky
.
The See also:area of distribution occupied by the southern crayfishes or Parastacidae is separated by a broad See also:equatorial See also:zone from that of the northern group, unless, as has been asserted, the two come into contact or overlap in Central America
.
None is found in any See also:part of See also:Africa, though a species occurs in See also:Madagascar
.
They are absent also from the See also:oriental region of zoologists, but reappear in See also:Australia and New See also:Zealand
.
Some of the Australian species, such as the "See also:- MURRAY
- MURRAY (or MORAY), EARLS OF
- MURRAY (or MORAY), JAMES STUART, EARL OF (c. 1531-1570)
- MURRAY (or MORAY), SIR ROBERT (c. 1600-1673)
- MURRAY, ALEXANDER STUART (1841-1904)
- MURRAY, DAVID (1849– )
- MURRAY, EUSTACE CLARE GRENVILLE (1824–1881)
- MURRAY, JAMES (c. 1719-1794)
- MURRAY, JOHN
- MURRAY, JOHN (1778–1820)
- MURRAY, LINDLEY (1745–1826)
- MURRAY, LORD GEORGE (1694–1760)
- MURRAY, SIR JAMES AUGUSTUS HENRY (1837– )
- MURRAY, SIR JOHN (1841– )
Murray River See also:lobster" (Astacopsis spinifer), are of large See also:size and are used for food
.
In South America crayfishes are found in southern See also:Brazil, See also:Argentina and See also:Chile
.
(W
.
T
.
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