Cetacea

(Gr. ketos, a whale). The order of Mammals comprising the Whales and Dolphins.

Cretognatha

(Gr. chaite, bristle; gnathos, jaw). An order of the Anarthro-poda, comprising only the oceanic genus Sagitta.

Chaetophora

(Gr. chaite ; phero, I carry). Applied as a common name to the Tubiculous and Errant Annelides, both of which have bristle-bearing foot-tubercles, together with the Earth-worms and their allies (Oligochoeta), which have locomotive bristles.

Cheiroptera

(Gr. cheir, hand ; pteron, a wing). The order of Mammals comprising the Bats.

Chelae

(Gr. chele, a claw). The prehensile claws with which some of the limbs are terminated in certain Crustacea, such as the Crab, Lobster, etc.

Chelate

Possessing chelae; applied to a limb.

CHELICERAE

(Gr. chele, a claw; and keras, a horn). The prehensile claws of the Scorpion, supposed to be homologous with antennae.

Chelonia

(Gr. chelone, a tortoise). The order of Reptiles comprising the Tortoises and Turtles.

Chelonobatrachia

(Gr. chelone, a tortoise; batrachos, a frog). Sometimes applied to the Amphibian order of the Anoura (Frogs and Toads).

Chilognatha

(Gr. cheilos, a lip ; and gnathos, a jaw). An order of the My-riapoda.

Chilopoda

(Gr. cheilos; and podes, feet). An order of the Myriapoda.

Chitine

(Gr. chiton, a coat). The peculiar chemical principle, nearly allied to horn, which forms the exoskeleton in many Invertebrate animals, especially in the Arthropoda (Crustacea, Insecta, &c).

Chlorophyll

(Gr. chloros, green; and phullon, a leaf). The green colouring matter of plants.

Chromatophores

(Gr. chroma, complexion, or colour; and phero, I carry). Little sacs which contain pigment-granules, and are found in the integument of Cuttle-fishes and other animals.

Chrysalis

(Gr. chrusos, gold). The motionless pupa of butterflies and moths, so called because sometimes exhibiting a golden lustre.

Chylaqueous fluid

A fluid consisting partly of water derived from the exterior, and partly of the products of digestion (chyle), occupying the body-cavity or perivisceral space in many Invertebrates (Annelids, Echinoderms, &c), and sometimes having a special canal-system for its conduction (chly-aqueous canals).

Chyle

(Gr. chulos, juice). The milky fluid which is the result of the action of the various digestive fluids upon the food.

Chylific

(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 " chylopoietic " 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 Iwfusorian.