292 MANUAL OP ZOOLOGY. 



CAINOZOIC. (See Kainozoic.) 



CALCAREOUS (Lat. calx, lime). Composed of carbonate of lime. 



CALICE. The little cup in which the polype of a coralligenous Zoophyte 

 (Actinozovn) is contained. 



CALYCOPHORID.T: (Gr. kalux, a cup; an&phero, I carry). An order of the 

 Oceanic Hydrozoa, so called from their possessing bell-shaped swimming 

 organs (nectocalycts). 



CALYX (Lat. calyx, a cup). Applied to the cup-shaped body of Vorticdla 

 (Protozoa}, or of a Crinoid (Echinodermata}. 



CAMPANULARIDA (Lat. campanula, a bell). An order of Hydroid Zoophytes. 



CAPITULUM (Lat. diminutive of caput, head). Applied to the body of a 

 Barnacle (Lepadid<8\ from its being supported upon a stalk or peduncle. 



CARAPACE. A protective shield. Applied to the upper shell of Crabs, Lob- 

 sters, and many other Crustacea also to the case with which certain of 

 the Infusoria are provided. 



CARNIVOROUS (Lat. caro, flesh ; voro, I devour). Feeding upon flesh. 



CARNOSE (Lat. caro). Fleshy. 



CAUDAL (Lat. cauda, the tail). Belonging to the tail. 



CEPHALIC (Gr. kephale, head). Belonging to the head. 



CEPHALO-BRANCHIATE (Gr. kephale ; and bragchia, gill). Carrying gills 

 upon the head. Applied to a section of the Annelida, which, like the 

 Serpula, have tufts of external gills placed upon the head. 



CEPHALOPHORA (Gr. kephale ; and phero, I carry). Used synonymously with 

 Encephala, to designate those Mollusca which possess a distinct head. 



CEPHALOPODA (Gr. kephale; and poda, feet). A class of the Mollusca, com- 

 prising the Cuttle-fishes and their allies, in which there is a series of 

 arms ranged round the head. 



CEPHALOTHORAX (Gr. kephale ; and thorax, chest). The anterior division 

 of the body in many Crustacea and Arachnida, which is composed of the 

 coalesced head and chest. 



CESTOIDEA (Gr. kestos, a girdle). An old name for the Tceniada, a class 

 of Intestinal Worms, with flat bodies like tape (hence the name Tape- 

 worms). 



CHEL^J (Gr. chele, a claw). The prehensile claws with which some of the 

 limbs are terminated in certain Crustacea, such as the Crab, Lobster, &c. 



CHELATE. Possessing chelae ; applied to a limb. 



CHELICER^E (Gr. chele, a claw ; and keras, a horn). The prehensile claws of 

 the Scorpion, supposed to be homologous with antennae. 



CHILOGNATHA (Gr. cheilos, a lip; and gnathos, a jaw). An order of the 

 Myriapoda 



CHILOPODA (Gr. cheilos : and poda, feet). An order of the Myriapoda. 



CHITINE (Gr. chiton, a coat). The peculiar chemical principle, nearly allied 

 to horn, which forms the exoskeleton in many I nvertebrate Animals, 

 especially in the Arthropoda (Crustacea, Insecta, &c.). 



CHLOROPHYLL (Gr. chloros, green ; and phylhs, a leaf). The green colour- 

 ing matter of plants. 



CHROMATOPHORES (Gr. chroma complexion, or colour ; and phero, I carry). 

 Little sacs which contain pigment-granules, and are found in the integu- 

 ment of Cuttle-iishes. 



CHRYSALIS (Gr. chrusos, gold). The motionless pupa of butterflies and 

 moths, so called because sometimes exhibiting a golden lustre. 



CHYLAQUEOUS FLUID. A fluid consisting partly of water derived from the 

 exterior, and partly of the products of digestion (chyle), occupying the 

 body-cavity or perivisceral space in many Invertebrates (Annelid<s, 

 Echinodcrms, &c.), and sometimes having a special canal-system for its 

 conduction (chylaqueous canals). 



