:]:4 GLOSSARY. 



careous tissue whieli uiiltes together the vai'iou:^ comllltes of a, compouDil 

 conilliiia, 



CcE-s(E'ci-rM (Gr. Icolnos, common ; ol/cos, liouseV The entire dfrmiil system 

 of any Polyzo'n ; employed in place of the terras polyzoury or polypidom. 



C(En'o-sarc (Gr. Jcoinos^ common; sarx-^ flesh). The common organized me- 

 dium by which the separate polypites of a compound Mydi'ozoJu are con- 

 nected together. 



Col-e-op'tek-a (Gr. Icoleos a sheath; fteron^ wing). The order of Insects 

 (Beetles) in which the anterior pair of win^s are hardened, and serve aa 

 protective cases for the posterior pair of menibranous wings. 



Col-u-bki'na (Lat. coluhei\ a snake). A division of the Ophidia. 



Col-um-ba'ce-i {Lat. columha^ a dove). The division of Kasorial Birds com- 

 prising the Doves and Pigeons. 



Col-i:-mel'la (Lat. dim. of colvnina^ a column). \n Conchology, the centrr.l 

 axis round which the whorls of a spiral univalve are wound. Amongst the 

 Adiiiozoa^ it is the central axis or pillar which is found in the centre of the 

 thccLG of many corals. 



CoL'tTMN. Applied to the cylindrical body of a Sea-anemone ( Art In la) ; also 

 to the jointed stem or peduncle of tlie stalked Criuold'i. 



CoM-Mis'su-RAL (Lat. commltto^ I solder together). Connecting together ; 

 usually applied to the nerve-fibres which unite different ganglia. 



Con'cha (Lat. for a shell). The external ear by which souads are collected 

 and transmitted to the internal ear. 



Con-chif'e-ra (Lat. concha, a shell ; fem^ T carry). ShelLfish. Applied in a 

 restrictei.l sense to the bividve Moliuses, and used as a synoiiyni for Lauidll- 

 hraiicliiata. 



Cun'dvls (Gr. hoi'dulos, a knuckle). The surface by which one bone articu- 

 lates with another. i\.p[)ried especially to ilie articular surface or sur- 

 faces by which tlie skull articulates with the vertebral column. 



Con-i-R(js'tees (Lat. conus^ a cone ; vostrum^ a beak i. The division of Perch- 

 ing Birds with conical beaks. 



Co PEp'o-DA I'Gr. kope^ an oar; podes^ feet). An order of Crustacea. 



Coe'a-coid (Gr. Icorax^ a crow; eidon^ form). One of the bones which enters 

 into the composition of the pectoral arch in Birds, Reptiles, and Mono- 

 tremes. In most Mammals it is a mere process of the scapula, having, in 

 man, some resemblance in shape to the beak of a crow. 



Cor-al-lig'en-ous. Producing a corallum. 



Cor'al-lite. The corallum secreted by an Actinozon winch consists of a 

 single polype; or the p'Ution of a composite corallum which belongs to, 

 and is secreted by, an individual polype. 



Cor-al'lum (from the Latin for red coral). The hard structures deposited in, 

 or by. the tissues of an Actinozo'n — commonly called a " corai." 



Co-Ri-ACEOus (Lat. coriuni^ hide). Leathery. 



Cob'pus Cal-lo'sum (Lat. for the '^ linn body "). The great band of nervous 

 matter which unites the two hemispheres of the cerebrum in the Mammals. 



OoR-Pcs'cu-LA-TED (Lat. covpuscuJ mii ^ a little body or particle). Applied to 

 fluids which, like the blood, contain floating solid particles or " corpuseles." 



Cor'ti-cal lay'er. The layer of consistent sarcode, which in l\\^. Infusoria 

 encloses the chyme mass, and is sm^rounded by tlie cuticle. Sometimes 

 called the " parenchyma of tlie )'od\ ." 



Co-ryn'i-da. 



Cos't^ (Lat. coda^ a rib). Ap])Ued amongst the Cnnoidea to designate the 

 rows of plates \\'liieh sui.'ei'e<l tlie inferior or basal portion of the cup (pel- 

 vis ). Among the Corah the '' costie " are vertical ridges whieli occur on the 

 outer surface of the theca, and mark the position of the septa within. 



Cos'tal (Lat. costa^ a rib). Connected with the ribs. 



Cra'ni-u.m (Gr. Jcranion, the skuUj. Tlie bony or cartilaginous case in which 

 the brain is contained, 



Cras'pe-da (Gr. kra-'ipedon^ a margin or fringe). The long, convo.nted cords, 

 containing thread-cells, which are attached to the free margins of tho 

 mesenteries of a Sea-anein jue. 



