628 GLOSSARV. 



careous tissue whioli unites together the various oorallites of a compound 

 oorallum. 



Cce-nce'ci-uji (Gr. homos^ common ; oikos^ house). The entire dermal system 

 of any Polyman ; employed in place of the teites polyzoary or polypid.om. 



CcEu'o-BARc (Gr., hoinos, common ; sarx, fiesh). The common organized me- 

 dium by which the separate polypltes of a compound Sydrcaoon are con- 

 nected together. 



Col-e-op'tek-a (Gr. holeoa, a sheath j pteron, ■wing). The order of Insects 

 (Beetles) in which the anterior pair of wings are hardened, and serve as 

 protective cases for the posterior pair of membranous wings. 



Ool-u-bei'na (Lat. eoluier, a snake). A division of the OpMdia. 



Col-tjm-ea'oe-i (Lat. eohimba, a dove). The division of Easorial Birds com- 

 prising the Doves and Pigeons. 



CoL-u-MEL'tA (Lat. dim. of eolumna, a column). In Conohology, the central 

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

 Aetinosoa, it is the central axis or pillar which is found in the centre of the 

 thecse of many corals. 



CoL'uMif. Applied to the cylindrical body of a Sea-anemone {Actinia) ; also 

 to the jointed stem or peduncle of the stalked Crinoida. 



CoM-Mis'su-EAL (Lat. committo, I solder together). Connecting together ; 

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



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

 and transmitted to the internal ear. 



CoN-oniF'E-EA (Lat. concJta, a shell : fero, I carry). Shell-fish. Applied in a 

 restricted sense to the bivalve Molluscs, and used as a synonym for ZamelH- 

 iraiiehiata. 



Con'dylb (Gr. Jcondulos, a knuckle). The surface by which one bone articu- 

 lates with another. Applied especially to the articular surface or sur- 

 faces by which the skull articulates with the vertebral column, 



Cok-i-bos'tkes (Lat. corms, a cone ; rostrum, a beak). The division of Perch- 

 ing Birds with conical beaks. 



Co-PEp'o-DA (Gr. hope, an oar; podes, feet). An order of Crustacea. 



Coe'a-ooid ((jr. korax, a crow ; eidos, form). One of the bones which enters 

 into the composition of the pectoral arch in Birds, Eeptdles, 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-Lio'EN-ons. Producing a corallum. 



Cor'al-lite. The oorallum secreted by an ActinotioCn which consists of a 

 single polype ; or the portion of a composite coraUura which belongs to, 

 and is secreted by, an individual polype. 



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

 or by. the tissues of an Actinozom — commonly called a " coral." 



Co-Ei-A oEous (Lat. corium, hide). Leathery. 



Coe'pus Cal-lo'stjm (Lat. for the " firm body "). The great band of nervous 

 matter which unites the two hemispheres of the cerebi^im in the Mammals. 



CoE-pus'cu-LA-TED (Lat. corpusculuTn, a little body or particle). Applied to 

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



Coe'ti-oai, lay'ee. The layer of consistent saroode, which in the Infusoria 

 encloses the chyme mass, and is surrounded by the cuticle. Sometimes 

 called the "parenchyma of the body." 



Co-eyn'i-da. 



Cos'iiE (Lat. costa, a rib). Applied amongst the Crinoidea to designate the 

 rows of plates which succeed the inferior or basal portion of the cup (pel- 

 vis). Among the Corals the " oostse " are vertical ridges which 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. 



Cea'ki-um (Gr. Teranion, the skull). The bony or cartilaginous case in which 

 the brain is contained. 



Ceas'pe-da (Gr. hraspedon, a margin or fringe). The long, convoluted cords, 

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

 mesenteries of a Sea-anemone, 



