GLOSSARY OF TECHNICAL TERMS. 6oi 



Chalimus. Final state of development in young, as in copepods. 



Chela. Claw. 



Chelate. Claw or pincher-like. 



Cheliform. Shaped like claws or pinchers. 



Cheliped. Claw or pincher foot, hke the large first pair of feet in macrurans 

 and crabs. 



Chitin. Substance forming carapace. 



Ciliate. Provided with cilia. 



Cilium. Hair, or hair-like filament. 



Cirrus. A fringe-like prehensile or locomotive organ, so called usually from 

 its curled or tufted form. 



Clasping organs. Modified second antennae of certain male phyllopods. 



Clavate. Club-shaped. 



Claiu. Chela, or nail-like point, or end, to an organ. 



Clypeus. Shield, or carapace. 



Coalescent. Joined or united. 



Ccelome. The body-cavity as distinguished from the intestinal cavity. 



Commensal. Mess-mates ; usually said of such forms as are not strictly para- 

 sitic, or do not feed on the juices or tissues of their host, though they 

 may live within its body. 



Commissure. Seam or suture. 



Conipound eye. Said of that found in many entomostraca when certain 

 elements composing it are in a condition of optical isolation from their 

 fellows. 



Concentric. With a common center. 



Connective. Tending to connect. 



Contour. Outline. 



Contractile. Narrow or shrunken. 



Convolute. Rolled together. 



Copulatory. Joined, with reference to the sexual embrace. 



Coriiim. Innermost layer of the skin. 



Cornea. Transparent cuticle covering the eye. 



Cosmopolitan. Said of species or groups whose range is world-wide. Mun- 

 dane. 



Costate. Ribbed. 



Coxa. Basal joint of the leg; coxopodite. 



Coxal lobe. Lobe formed on coxa. 



Coxal plate. Coxal lobe. 



Coxopodite. Basal joint of a developed limb by which its limb articulates 

 with its somite or segment of the body ; coxa. 



Crenulate. With little notches. 



Cuticle. A thin skin. 



Dactyl. Finger. 



Dactylopodite. Finger-foot : finger. 



DendrobranchicE. Root-like gills, as in prawns. 



Denticulate. Toothed. 



Dentiform. Shaped like a tooth. 



Depressor muscles. Said of those which press downward. 



