GLOSSARY. 399 



CLYMENIA (Clumene, a proper name). A genus of Tetra- 

 branchiate Cephalopods. 



COCCOSTEUS (Gr. kokkos, berry; osteon, bone). A genus of 

 Ganoid Fishes. 



COCHLIODUS (Gr. kochlion, a snail-shell; odous, tooth). A genus 

 of Cestraciont Fishes. 



COELENTERATA (Gr. koilos, hollow ; enteron, the bowel). The 

 sub-kingdom which comprises the Hydrosoa and Actinozoa, 

 Proposed by Frey and Leuckhart in place of the old term 

 Radiata, which included other animals as well. 



COLEOPTERA ( Gr. koleos, a sheath; 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. 



COLOSSOCHELYS (Gr. kolossos, a gigantic statue; chelus, a tor- 

 toise). A huge extinct Land-tortoise. 



COMATULA (Gr. koma, the hair). The Feather-star, so-called 

 in allusion to its tress-like arms. 



CONDYLE (Gr. kondulos, a knuckle). The surface by which one 

 bone articulates with another. Applied especially to the 

 articular surface or surfaces by which the skull articulates 

 with the vertebral column. 



CONIFERS (Lat. conus, a cone; jero, I carry). The order of 

 the Firs, Pines and their allies, in which the fruit is generally 

 a " cone " or " fir-apple. " 



CONULARIA (Lat. conulus, a little cone). An extinct genus of 

 Pteropods. 



COPROLITES (Gr. kopros, dung; lithos, stone). Properly applied 

 to the fossilized excrements of animals ; but often employed 

 to designate phosphatic concretions which are not of this 

 nature. 



CORALLITE. The corallum secreted by an Actinozo'dn which con- 

 sists of a single polype ; or the portion of a composite coral- 

 lum which belongs to, and is secreted by, an individual polype. 



CORALLUM (from the Latin for' Red Coral). The hard structures 

 deposited in, or by, the tissues of an Actinozo'on commonly 

 called a " coral. " 



CORIACEOUS (Lat. corium, hide). Leathery. 



CORYPHODON (Gr. korus, helmet; odous, tooth). An extinct 

 genus of Mammals, allied to the Tanirs. 



CRANIUM (Gr. kranion, the skull). The bony or cartilaginous 

 case in which the brain is contained. 



CRETACEOUS (Lat. creta, chalk). The formation which in 

 Europe contains white chalk as one of its most conspicuous 

 members. 



CRINOIDEA (Gr. krinon, a lily; eidos, form). An order of 

 Echinodermata, comprising forms which are usually stalked, 

 and sometimes resemble lilies in shape. 



CRIOCERAS (Gr. krios, a ram; keras, a horn). A genus of Am- 

 monitidc?. 



CROCODILIA (Gr. krokodeilos, a crocodile). An order of Reptiles. 



CROSSOPTERYGID^: (Gr. krossotos, a fringe; pterux, a fin). A 

 sub-order of Ganoids in which the paired fins possess a 

 central lobe. 



