nozoa_. 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
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.

CONIFERAE (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.

COPRALITES (Gr. _kopros_, dung; _lithos_, stone). Properly applied
to the fossilised excrements of animals; but often employed to
designate phosphatic concretions which are not of this nature.

CORALLITE. The corallum secreted by an _Actinozooen_ 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 _Actinozooen_,--commonly
called a "coral."

CORIACEOUS (Lat. _corium_. hide). Leathery.

CORYPHODON (Gr. _korus_, helmet; _odous_, tooth). An extinct genus
of Mammals, allied to the Tapirs.

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
_Ammonitidoe_.

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

CROSSOPTERYGIDAE. (Gr. _krossotos_, a fringe; _pterux_, a fin). A
sub-order of Ganoids in which the paired fins possess a central
lobe.

CRUSTACEA (Lat. _crusta_, a crust). A class of Articulate animals,
comprising Crabs, Lobsters, &c., characterised by the possess