Part 26

Cavernicolous: cave-inhabiting.

Cavernous: divided into small spaces or little caverns.

Cavity -as: a hollow space or opening.

Cecidium: a gall.

Cell: any space between or bounded by veins: in the Comstock system the cells derive their names from the vein forming the Tupper margin: e.g. all just below the radius are radial cells; and they are numbered from the base outward, as radial 1, 2, etc.: the living unit; protoplasm differentiated into cytoplasm and nucleus, from which units all but the lowest plants and animals are developed by division and consequent increase into a multicellular condition: a compartment or division of a nest or honey-comb.

Cellule: a portion of a wing included between veins; usually applied to a small area completely inclosed, rarely to interspaces where no closed area is formed.

Cenchrus -rib: minute, often white marks, or membranous spaces on the metanotum of some Hymenoptera.

Cenogonous: producing young at one time oviparously, at another viviparously as in plant-lice.

Centimeter: abb. Cm.: = .01 meter = .394 inch; 2.54 Cm. = one inch.

Centrad: toward the centre or interior.

Central foveola: see median foveola.

Centrolecithal: applied to eggs in which the food yolk is central.

Centrosome: a spherical body that appears outside the nucleus of a cell.

Cephalad: toward the head, along the central line of the body.

Cephalic: belonging or attached to the head; directed toward the head.

Cephalic bristles: Diptera; specialized bristles occurring on the head.

Cephalic foramen: the posterior or occipital foramen of head through which the dorsal vessel, oesophagus, salivary ducts and ventral nerve cords pass from head to prothorax.

Cephalization: concentration toward the head.

Cephalomere: one of the head segments of an arthropod.

Cephalophragm: a v-shaped partition which divides the head of some Orthoptera, into an anterior and posterior chamber.

Cephalon: the head.

Cephalosome: the head as one of the three regions.

Cephalotheca: the head covering in the pupal stage.

Cephalotheca: the united head and thorax of arachnids and crustacea {Scanner's comment: nowadays this term is used little if at all. It does not seem ever to have been popular. Instead the terms cephalothorax or prosoma are widely used.} : that portion of an obtect pupa covering head and thorax: the anterior segments of larva that have no obviously separated head.

Cerago: bee-bread.

Ceratheca or Ceratotheca: that portion of the pupal shell that envelops the antenna.

Cerci: two lateral anal appendages; usually short, jointed, antenna-like, developed from the eleventh abdominal segment of the embryo; sometimes unjointed and specialized into forceps or other processes.

Cercopoda: jointed foot-like appendages of the last abdominal segment; also applied like cerci.