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CHAMBERED. A term in conchology, de- 

 noting that the cavity of a shell is not 

 continuous, but is divided by shelly dia- 

 phragms or septa. This frequently occurs 

 in the Cephalopods, but is not confined to 

 them, as it occurs in some species of Chama 

 and in some vermicular shells and turreted 

 univalves, Sic. 



CHAMFERED. Cut into furrows, or cut 

 sloping ; as, a chamfered shell. 



CHAP. The upper and lower part of the 

 mouth in animals ; the jaw. 



CHARACTERISTIC. That which characterizes, 

 or constitutes a character. 



CHATOYANT. jTr.] Having a changeable, 

 undulating lustre, like that of a cat's eye 

 in the dark. 



CHEEK-POUCHES. The hollow recesses in 

 the cheeks of certain rodent and quadru- 

 manous animals, which they use as recep- 

 tacles for food. 



CHELATE. When the upper jaws are fur- 

 nished at the end with a chela or thumb. 



CHELIFEROUS. When the cauda or tail is 

 terminated by a very thick forceps some- 

 what resembling a lobster's claw. 



CHELIFEROUS. Furnished with claws. 



CHELAE. The bifid claws of the Crustacea, 

 scorpions, &c. 



CHELICERA. The prehensile claws of the 

 scorpion, which are the homologues of an- 

 tennas. 



CHELIFORM. Having the form of a claw. 



CHELONIAN. Belonging to or having the 

 properties of an order of reptiles which in- 

 cludes the Tortoises and Turtles. 



CIIILOPODOUS. Belonging to the Chilopoda, 

 an order of many-footed insects, typified 

 by the Centipede. 



CHITINE. The peculiar chemical principle 

 which hardens the integuments of in- 

 sects. 



CHOROID. In anatomy, a term applied to 

 several parts of the body that resemble the 

 chorion, or exterior membrane which in- 

 vests the foetus in utero ; as the inner 

 membrane investing the brain, &c. 



CHYLE. The nutrient fluid extracted from 

 the digested food by the action of the bile. 



CHYLIFACTIVE. Forming or changing into 

 chyle ; having the power to make chyle. 



CHYLIFEROUS. Transmitting chyle. 



CHYME. The digested food which passes 

 from the stomach into the intestines. 



CHRYSALIS. The particular form which 

 Butterflies, Moths, and some other insects 

 assume, before they arrive at their winged 

 or perfect state. It is also called aurelia, 

 from aurum, gold. In this form, the ani- 

 mal is in a state of rest or insensibility ; 

 having no organs for taking nourishment, 

 nor wings, nor legs. The external cover- 

 ing is cartilaginous, and usually smooth 

 and glossy ; sometimes hairy. The name 

 is taken from the yellow colour of certain 

 species ; but they are of different colours, 

 as green, black, &o. 



CICATRICOSE. Haying elevated spots of a 

 different colour from the rest of the sur- 

 face, resembling scars. 



CICATRISIVE. Tending to promote the for- 

 mation of a scar or cicatrix. 



CICATRIX : CICATRICE. A scar ; a little seam 



or elevation of flesh remaining after a 

 wound is healed. 



CILIA. The microscopic hair-like bodies 

 which cause, by their vibratile action, cur- 

 rents in the surrounding fluid, or a motion 

 of the body to which they are attached. 



CILIARY. Belonging to the eyelids. 



CILIATE. CILIATED. Furnished with cilia, 

 or vibratile hair-like filaments resembling 

 the hairs of the eyelids ; when the margin 

 is fringed with a row of parallel hairs. 

 When the tongue is edged with fine bris- 

 tles, as in Ducks, it is said to be ciliated. 



CILIOGRADE. Swimming by the action of 

 cilia. 



CIMICINE. Having an offensive scent like 

 that of the bed-bug. 



CINCTURE. An apparent band or girdle en- 

 compasssing the body of an insect, bird, 

 &c. 



CINEREOUS. White with a shade of brown ; 

 having the colour of wood ashes. 



CINGULATE. When the abdomen or the 

 trunk of an insect is wholly surrounded 

 by one or more belts of a different colour. 



CIRCLET. A little circle, or annular mark. 



CIRCULAR. Having the diameter every way 

 equal. 



CIRCULATE. To run ; to flow in veins or 

 channels. 



CIRCUMAMBIENT. When the sides of the 

 prothorax are elongated anteriorly and 

 curve inwards, their ends lapping over 

 each other and the head, so as to form a 

 circle round the posterior part of the latter, 

 and leave a space open for the eyes to see 

 objects above them. 



CIRCUMFLUENT. Flowing round. 



CIRCUMGYRATIONS. Motions in a circle. 



CIRCUMSEPTED. Wings whose margin is 

 everywhere strengthened by a nervure. 



CIRCUMVOLUTION. The act of flying round. 



CIRRATE. Terminating in a pair of curling 

 hairy branches resembling tendrils. 



CIRRI. Curled filamentary appendages ; as 

 the feet of the barnacles. 



CIRRIOEROUS. Supporting cirri. 



CIRRIGRADE. Moving by means of cirri. 



CIRROSE. Having one or more cirri. 



CIRRUS. A lock of curling hair. 



CITRINE. Of a lemon colour ; a greenish- 

 yellow. 



CLASS. A primary division of the animal 

 kingdom. 



CLASSIFICATION. The act of forming into 

 classes or sets. 



CLASSIFIED. Arranged in classes. 



CLATHRATE. Having several elevated lines 

 which cross each other at right angles. 



GLATHROSE. When striae or furrows cross 

 each other at right angles. 



CLAVATE. Club-shaped : linear at the base, 

 but towards the apex growing gradually 

 broader. In conchology, when one ex- 

 tremity of the shell is attenuated and the 

 other becomes suddenly ventricose or glo- 

 bular, it is said to be clayate. 



CLAVIFORM. Whose vertical section is cu- 

 neate, and horizontal circular. 



CLEFT. Cut into equal and deep segments, 

 but not reaching the base. 



CLIMATIC. Pertaining to, or limited by, a 

 climate. 



