670 GLOSSARY. 



Caruncle. (Lat. caruncula.) A soft wart-like eminence. 



Caudal. (Lat. caitda, a tail.) Belonging to the tail. 



Cauda Equina. The brush of nerves which terminates the spinal marrow in the 



human subject, and the homologous part in the lower animals. 

 Cellular tissue. (Lat. cella, a cell.) The elastic connecting tissue of the dif- 

 ferent parts of the body, which every where forms cells or interspaces containing 

 fluid. 

 Centipede. (Lat. centum, a hundred ; pes, a foot.) A genus of insects with very 



numerous feet. 

 Cephalo-thorax. (Gr. kephale, head ; thorax, chest.) The anterior division of 

 the body in spiders, scorpions, &c., which consists of the head and chest blended 

 together. 

 Ceppl\lic. (Gr. kephale, head.) Belonging to the head. 

 Cephalopoda. (Gr. kephale; poda, feet.) The class of molluscous animals in 



which long prehensile processes or feet project from the head. 

 Cercari^. (Gr. kerkos, a tail.) The animalcules whose body is terminated by a 



tail-like appendage. 

 Cercariform. Shaped like Cercariae. 

 Cerc^. (Gr. kerkos, a tail.) The feelers which project from the hind part of the 



body in some insects. 

 Cerealia. {Ceres, the Goddess of corn.) The name of the natural family of plants 



which produce corn, oats, rye, &c. 

 Cestoidea. (Gr. Aestos, a girdle.) The order of intestinal worms with long and 



flat bodies like tape, usually called tape-worms. 

 Chelonia. (Gr. chelone, a turtle.) The order of reptiles including the tortoises 



and turtles. 

 Chele. (Gr. chele, a claw.) Applied to the bifid claws of the Crustacea, scor- 

 pions, &c. 

 Chelicera. (Gr. chele, a claw; keras, a horn.) The prehensile claws of the 



scorpion, which are the homologues of antennte. 

 Chilognatha. (Gr. cheilos, a lip ; gnathos, a jaw.) The order of many-footed in- 

 sects typified by the Gally-worm or lulus. 

 Chilopoda. (Gr. cheilos, a lip; poda, feet.) An order of many-footed insects 



typified by the Centipede. 

 Chitine. (Gr. chiton, a coat.) The peculiar chemical principle wliich forms the 



integument of insects. 

 Chlorophyll. (Gr. chloros, light green ; phyllos, a leaf.) The colouring matter 



of the leaves and some other parts of plants. 

 Choledochus. (Gr. chole, bile ; d^che, receptacle.) The tube formed by the union 



of the hepatic and cystic ducts. 

 Chorion, From the Greek word signifying the membrane which encloses the foetus 



and applied generally to the outer covering of the ovum. 

 Chrysalids. (Gr. chrusos, gold.) The stage of the butterfly immediately preced- 

 ing its period of flight, when it is passive, and enclosed in a case which sometimes 

 glitters like gold . 

 Chyle. (Gr. chulos, juice.) The nutrient fluid extracted from the digested food 



by the action of the bile. 

 Chyjie. (Gr. chumos, juice.) The digested food which passes from the stomach 



into the intestines. 

 Cicatrix. From the Latin, signifying scar. 



Cilia. (Lat. cilium, an eyelash.) 'I he microscopic hair-like bodies which cause, 

 by their vibratile action, ciu-rents in the contiguous fluid, or a motion of the body 

 to which they are attached. 

 Ciliated. Provided with vibratile cilia. 



Ciliobrachiata. The class of Polypes in which the arms are pro-vided with vibra- 

 tile cilia. 

 CiLiOGRADES. (Lat. ciUum ; and gradior, I walk.) The order of AcalephiB which 



swim by the action of cilia. 

 Circumgyrations. (Lat. circiim, around ; gyrus, a circle.) IMotions in a circle. 

 Cirri. (Lat. cirrus, a curl.) The curled filamentary appendages, as the feet of the 

 barnacles. 



