=Cam´bri-an= [_Cambria_, _Wales_.] The name given by Sedgwick to those Palæozoic rocks that underly the Silurian, in Cambria (or Wales). =Car-bon-if´er-ous= [Lat. _carbo_, coal; _fero_, bear.] =Car-i-na´tæ= [Lat. _carinatus_, keel-shaped.] Birds having a keeled (carinate) breast-bone. =Car-niv´o-ra= [Lat. _caro_, flesh; _voro_, devour.] Flesh-eating mammals. =Cas-tra´tion= [Lat. _castratus_.] Removal of the glands that bear the Germ-Cells. =Cat-ar-rhi´næ= [Gr. _kata_, down; _rhis_, nose.] Old World monkeys. The septum of the nose is narrow; the tail is short and not prehensile. =Cat´ar-rhines= [Vid. Catarrhinæ.] Old World monkeys. =Ceb´i-dæ= [Gr. _kebos_, long-tailed monkey.] A family of New World monkeys. =Ce´bus= [Gr. _kebos_, long-tailed monkey.] =Cen-o-zo´ic= [Gr. _kainos_, new; _zoe_, life.] Relating to the Quaternary and Tertiary eras. =Cen´ti-pede= [Lat. _centum_, hundred; _pes_, foot.] A many jointed myriapod having a pair of legs to each joint. =Cen´tro-some= [Gr. _kentron_, center; _soma_, body.] A body just outside of the nucleus of a cell and that governs the mitotic phases of a cell. =Ceph-a-lop´o-da= [Gr. _kephale_, head; _pous_, foot.] Molluscs with a subcentral head, a beaked mouth, and tentacles taking the place of feet, including cuttlefishes, etc. =Cer´a-tites= [Gr. _keras_, horn; _ites_, like.] A fossil cephalopod with the habitation chamber short and sutural saddles mostly simple. =Cer´a-to-dus= [Gr. _keras_, horn; _odous_, tooth.] So-called from the horn-like ridges of the teeth. A lung-fish. =Cer-co-pi-the´ci-dæ= [Gr. _kerkopithekos_, a long-tailed ape; _eidos_ form.] A family of catarrhine anthropoidea. =Cer-e-bel´lum= [Lat. dim. of _cerebrum_, brain.] A subdivision of the encephalon. =Cer´e-brum= [Lat. brain.] A subdivision of the encephalon. =Cer´e-bral= [Vid. Cerebrum.] Pertaining to the cerebrum. =Ce-ta´ce-a= [Lat. _cetus_, whale.] An order of fish-like mammals including the whales and porpoises. =Chei-rop´te-ra= [Gr. _cheir_, hand; _pteron_, wing.] Including the Bats,—an order of mammals. =Chei-ro´tes= [Gr. _cheirotos_, having a hand.] A native lizard of Mexico. =Che-lo´ni-a= [Gr. _chelone_, tortoise.] An order of reptiles, including the turtles and tortoises. =Chi-mæ´roids= [Gr. _chimaira_, a fabled monster; _eidos_, form.] An order of elasmobranchii (holocephali) with opercular membrane and smooth skin. =Chi´ro-mys= [Gr. _cheir_, hand; _mus_, mouse.] =Chim-pan´zee= [W. Afr.] Anthropopithecus. A West African arboreal, anthropoid ape; five feet high; distinct eyelashes, eyebrows, and whiskers; very large ears. It approximates to man in its dentition and the length of its arms. Has darker hair than gorilla. =Chi´tin-ous= [Gr. _chiton_, tunic.] Pertaining to chitin, the horny substance in the skin of insects. =Chro´ma-tin= [Gr. _croma_, color.] Nuclear threads. =Chor-da´ta= [Lat. _chorda_, chord.] A subkingdom of animals with a notochord persistent or evanescent.