GLOSSARY. 327 



derms, etc.), and sometimes having a special canal -system for its conduction 

 (chylaqueous canals). 



CHYLE (Gr. chulos, juice). The milky fluid which is the result of the action 

 of the various digestive fluids upon the food. 



CHY-LIF'IO (Gr. chulos, juice [chyle] ; and Lat. facio, I make). Producing 

 chyle. Applied to one of the stomachs, when more than one is present. 

 The word is of mongrel origin; and " chylopoetic " is more correct. 



CHYME (Gr. chumos, juice). The acid, pasty fluid produced by the action of 

 the gastric juice upon the food. 



CHYME-MASS. The central, semi-fluid sarcode in the interior of an Infusorian. 



CIL'I-A (Lat. cilium, an eyelash). Microscopic, hair-like filaments, which 

 have the power of lashing backward and forward, thus creating currents in 

 the surrounding or contiguous fluid, or subserving locomotion in the animal 

 which possesses them. 



CIL-I-O-GRA'DA (Lat. cilium ; and gradior, I walk). Synonymous with Cteno- 

 phora, an order of Actinozoa. 



CIN'CLI-DES (Gr. Icigklis, a lattice). Special apertures in the column-walls of 

 some Sea-anemones (Actinia), which probably serve for the emission of 

 the cord-like " craspeda." 



CIR'RI (Lat. cirrus, a curl). Tendril-like appendages, such as the feet of 

 Barnacles and Acorn-shells (Cirripedes), the lateral processes on the arms 

 of Bracliiopoda, etc. 



CIR-RIF'ER-OUS or CIR-RIG'ER-OUS. Carrying cirri. 



CIR-RI-PE'DIA, CIR-RHI-PE'DI-A, or CIR-RHOP O-DA (Lat. cirrus, a curl ; and^es, a 

 foot). A sub-class of Crustacea with curled jointed feet. 



CIR-ROS'TO-MI (Lat. cirrus, a tendril ; Gr. stoma, mouth). Sometimes used to 

 designate the Pharyngobranchii. 



CLA-DOC'E-RA (Gr. Idados, & branch ; Iceras, a horn). An order of Crustacea 

 with branched antennae. 



CLA'VATE (Lat. clavus } a club). Club-shaped. 



CLAV'I-CLE (Lat. clavwula, a little key). The " collar-bone," forming one of 

 the elements of the pectoral arch of Vertebrates. 



CLO-A'OA (Lat. for a sink). The cavity into which the intestinal canal and 

 the ducts of the generative and urinary organs open in common, in some 

 Invertebrates (e. g., in Insects), and also in many Vertebrate animals. 



CLYP'E-I-FORM (Lat. clypeus, a shield ; and forma, shape). Shield-shaped ; 

 applied, for 'example, to the carapace of the King-crab. 



CNI'D^E (Gr. Icnide, a nettle). The urticating cells, or " thread-cells," where- 

 by many Coelenterate animals obtain their power of stinging. 



COO'CO-LITHS (Gr. Tcokkos, a berry; lifhos, stone). Minute oval or rounded 

 bodies, which are found either free or attached to the surface of coccb- 

 spheres. 



Coo' CO-SPHERES (Gr. kokkosj and sphaira, a sphere). Spherical masses of sar- 

 code, enclosed in a delicate calcareous envelope, and bearing coccoliths 

 upon their external surface. Both coccospheres and coccoliths are em- 

 bedded in a diffused plasmodium of sarcode, the whole constituting a low 

 Rhizopodic organism. 



COC-CYG'E-AL. Connected with the coccyx. 



COO'CYX (Gr. TcoTckux, a cuckoo). The terminal portion of the spinal column 

 in man, so called from its resemblance to a cuckoo's beak. 



CO-COON' (French caeon, the cocoon of the silk- worm ; connected with Fr. 

 cogue, shell, which is derived from the Lat. concha}. The outer covering 

 ot silky hairs with which the pupa or chrysalis of many insects is protected. 



CO-DO-NOS'TO-MA (Gr. Icodon, a bell; stoma, mouth). The aperture or mouth 

 of the disc (nechocalyx) of a Medusa, or of the bell 'gonocalyx) of a medusi- 

 form gonophore. 



C<E-LEN-TE-RA'TA (Gr. Icoilos, hollow; enieron, the bowel). The sub-kingdom 

 which comprises the Hydrozoa and Actinozoa. Proposed by Frey and 

 Leuckhart in place of the old term Radiata, which included other animals 

 as well. 



CCB-NEN'CHY-MA (Gr. Jcoinos, common ; egchuma, tissue). The common cal- 



