CAR 



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CAR 



CA'EBURET. A compound formed by 

 the combination of carbon with 

 any metal, alkali, or earth. 



CA'EBUBETTED HYDROGEN GAS. The 

 fire-damp of miners. 



CA'BBUNCLE. (carlunculm, Lat.) A 

 precious stone, supposed by some 

 authors to be the ruby, by others 

 the garnet ; called by the Greeks 

 anthrax. 



CA'BDIAC. j (from Kapdi'a, the heart, 



CABDI'ACAL. ) Gr. cardiaqiie, Pr.) 

 Relating to the heart, as the cardiac 

 nerves, &c. 



CABDIA'CEA. In Cuvier's arrange- 

 ment a family of bivalves of the 

 class Testacea, comprising Yeneri- 

 cardia, Cardita, Cardium, Cypri- 

 cardia, and Trocardia. 



CABDINIA. A genus of fossil bivalve 

 shells separated by M. Agassiz 

 from the unios ; Cardinia is thick, 

 equivalve, inequilateral, rather 

 compressed, and transverse ; the 

 hinge is remarkable for the size, 

 prominence, and lengthened form 

 of the lateral teeth. The species 

 of cardinia are numerous, five are 

 recorded from the coal measures, 

 nine from the lias, and two from 

 the inferior oolite in England. 

 Lycett. 



CABDIOMOBPHA. A genus of fossil 

 bivalve shells, hitherto found only 

 in the carboniferous limestone. M. 

 Koninck describes it as being 

 equivalve, inequilateral, thin, ob- 

 lique, and transversely elongated ; 

 the hinge without teeth, linear, 

 with a smooth cardinal lamina 

 extending from the umbones to 

 the extremity of the margin ; the 

 ligament linear and external. 

 Dublin, Holland, Kildare and Yise 

 are given as the localities. One 

 species only is known, the 

 C. oblonga. Lycett. 



CARDI'TA. An inequilateral bivalve, 

 found at various depths to thirteen 

 fathoms, in mud and sands ; some- 

 times attached to stones. The 

 hinge with two unequal teeth; 



the hinge tooth the shortest, be- 

 neath the beak ; the other longitu- 

 dinal, beneath the insertion of the 

 cartilage. Lamarck places Cardium 

 in the family Cardiacea. 



CA'BDIUM:. The cockle ; animal a 

 tethys. A genus of bivales, the 

 shells of which are characterised 

 by the teeth of their hinge, and by 

 the projection of their beaks ; the 

 latter giving them a cordiform 

 appearance. They are generally 

 ornamented with longitudinal rid- 

 ges, and frequently with stride, 

 scales or spines. The different 

 species are found at depths varying 

 to thirteen fathoms, in mud, sands, 

 and gravel. This genus belongs to 

 the class Yermes, order Testacea. 

 Many of the species, as the C. acu- 

 leatum, arcuatum, ciliare, discors, 

 edule, elongatum, Iffivigatum, no- 

 dosum, spinosum, &c. &c. are found 

 on our coasts. The cardium, with 

 the exception of one species, car- 

 dium fluviatile, has only been found 

 to inhabit the ocean; generally 

 they live just under the surface of 

 the sand. Fifty-two species have 

 been described. 



CABI'NA. (Lat.) The keel ; a term 

 applied to two of the petals in 

 papilionaceous flowers. The ca- 

 rina is composed of two petals, 

 separate or united, and encloses the 

 internal organs of fructification. 



CABINA'BIA. A very thin univalve, 

 in the form of a cone flattened on 

 its sides, the apex terminating in a 

 very small convoluted spire, and 

 the back having a dentated keel. 

 De Blainville places Carinaria in 

 the family Wectopoda. It derives 

 its name from its dorsal keel. 

 Parkinson states that it has not 

 been found fossil, nor is its inhabi- 

 tant known. Sowerby mentions 

 that this beautiful shell was once 

 so rare, that a specimen would 

 fetch one hundred guineas. 



CA'BINATED. (carinatus, Lat). Keel- 

 shaped ; in conchology, having a 



