GLOSSARY. 383 
CERATITES (Gr. keras, a horn). A genus of Ammonitide. 
CERATODUS (Gr. eras, a horn ; odous, tooth). A genus of Dipnoous fishes. 
CERVICAL (Lat. cervix, the neck). Connected with or belonging to the region 
of the neck. 
CERVID& (Lat. cervus, a stag). The family of the Deer. 
CESTRAPHORI (Gr. kestra, a weapon ; phero, I carry). The group of the ‘* Ces- 
traciont Fishes,” represented at the present day by the Port-Jackson Shark ; 
so called from their defensive spines. 
CETAcEA (Gr. kétos, a whale). The order of Mammals comprising the Whales 
and the Dolphins. 
CETIOSAURUS (Gr. kétos, whale ; saura, lizard). A genus of Deinosaurian 
Reptiles. 
CHEIROPTERA (Gr. cheir, hand ; pteron, wing). The Mammalian order of the 
Bats. 
CHEIROTHERIUM (Gr. cheir, hand ; thérion, beast). The generic name applied 
originally to the hand-shaped footprints of Labyrinthodonts. 
CHEIRURUS (Gr. cheir, hand ; owra, tail). A genus of Trilobites. 
CHELONIA (Gr. cheloné, a tortoise). The Reptilian order of the Tortoises and 
Turtles. 
CHONETES (Gr. chdné or chéané, a chamber or box). A genus of Brachiopods. 
CIDARIS (Lat. a diadem). A genus of Sea-urchins, 
CLapopus (Gr. klados, branch ; odouws, tooth). A genus of Fishes. 
CLATHROPORA (Lat. clathii, a trellis; porus, a pore). A genus of Lace-corals 
(Polyzoa). 
CLISIOPHYLLUM (Gr. Klision, a hut; phullon, leaf). A genus of Rugose Corals. 
CLYMENIA (Clumene, a proper name). A genus of Tetrabranchiate Cephalopods. 
CoccostEus (Gr. kokkos, berry ; osteon, bone). A genus of Ganoid Fishes. 
Cocuuiopus (Gr. kochlion, a snail-shell ; odows, tooth). A genus of Cestra- 
ciont Fishes. 
C@LENTERATA (Gr. Xoilos, hollow ; enteron, 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. 
COLEOPTERA (Gr. Koleos, a sheath; pteron, wing). The order of Insects 
(Beetles) in which the anterior pair of wings are hardened, and serve as pro- 
tective cases for the posterior pair of membranous wings. 
COLOSSOCHELYS (Gr. Kolossos, a gigantic statue; chelus, a tortoise). 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. 
CONIFER (Lat. conus, a cone; fero, 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. 
CoprRouites (Gr. kopros, dung; lithos, stone). Properly applied to the fossil- 
ised excrements of animals ; but often employed to designate phosphatic con- 
cretions which are not of this nature. 
CORALLITE. The corallum secreted by an Actinozoén which consists of a single 
polype ; or the portion of a composite corallum 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 Actinozoén—commonly called a ‘* coral.” 
CORIACEOUS (Lat. corium, hide). Leathery. 
CoRYPHODON (Gr. korus, helmet; odows, tooth), An extinct genus of Mam- 
mals, allied to the Tapirs. 
Cranium (Gr. kranion, the skull). The bony or cartilaginous case in which 
the brain is contained, 
CretTAcEous (Lat. creta, chalk). The formation which in Europe contains 
_ white chalk as one of its most conspicuous members. 
