GLOSSARY, 



375 



Chelae. The prehensile claws terminating the limbs of some Crus- 

 tacea e. g., the lobster. 



Chelonia. An order of Reptilia, 



Chilopoda. An order of Myriopoda. 



Chitine. (Gr. XIT&V, a coat.) The horny covering of insects, etc. 



Chrysalis. The pupa state of an insect. 



Chyle. (Gr. x^k> juice.) The milky fluid which results from the 

 digestion of food. 



Chyme. (Gr. X"/*^ s juice.) An acid, the result of the action of 

 gastric juice on food. 



Cilia. (Lat. cilium, an eyelash.) Hair-like organs of Infusoria. 



Cirripedia. (Lat. cirrus \ a curl ; pes t a foot.) A group of Crustacea, 



Caecal. Ending blindly. 



Caecum. A blind sac. 



Coelenterata. The sub-kingdom of Invertebrata, comprising Hydro- 

 zoa and Actinozoa. 



Coleoptera. (Gr. Ko\e6s, a sheath ; -trrep&v, a wing.) The beetles 

 whose anterior wings protect their posterior. 



Condyle. The articular surface of a bone, especially of the oc- 

 ciput. 



Crinoidea. (Gr. Kpivov, a lily ; eTSos, form.) An order of Echinoder- 

 mata. 



Crustacea. (I at. crusta, a crust.) Applied to lobsters, crabs, etc. 



Ctenophora. An order of Actinozoa. 



Cuticle. The outer layer of the skin. 



Cyclostorai. An order of fishes, called Marsiopobranchii. 



Cycloid. (Gr. KVK\OS, a circle ; e?<ros, form.) Applied to circular fish- 

 scales. 



Decollated. (Lat. decollo> I behead.) Univalve shells whose apex 

 falls off during growth. 



Dentirostres. (Lat. dens, a tooth ; rostrum, a beak.) Perching birds 

 with a toothed mandible. 



Dentate. Furnished with teeth. 



Didelphia. (Gr. Sis, two, or double ; $e\<j>vs, womb.) The sub-class 

 of Marsupials. 



Dipnoi. (Gr. Sis, double ; *vo^, breath.) An order of Pisces. 



Dipteria. (Gr. Sis, two ; irrfp6v, wing.) An order of Insecta. 



Discophora. A group of jelly-fish. 



Echinodermata. (Gr. ixivos, a hedgehog; Se'p/zo, skin.) The star, 

 fishes, etc. 



Echinoidea. An order of Echinodermata. 



Ectoderm, (Gr. ficrSs, outer, and Sepjia, skin.) The outer covering 



