482 GLOSSARY. 



Cephalo-branchiate (Gr. TccpTiale ; and hragchia, gill). Carrying gills upon 



the head. Applied to a section of the Annelida, which, like the Serjyulce, 



have tufts of external gills placed upon the head. 

 Cephalophora (Gr. kephale ; and phero, I carry). Used synonymously 



with EncepJmla, to designate those Mollusca which possess a distinct 



head. 

 Cephalopoda (Gr. ^'ejj/iafe; awi. podcs, feet). A class of the ilfoZ/«sca, com- 

 prising the Cuttle-fishes and their allies, in which there is a series of arms 



ranged round the head. 

 Cephalothorax (Gr. kephale; and thorax, chest). The anterior division of 



the body in many Crustacea and Arachnida, which is composed of the 



coalesced head and thorax. 

 Ceratiocaris (Gr. heras, a horn ; karis, a shrimp). A genus of Phyllopod 



Crustaceans. 

 Ceratites (Gr. keras, a horn). A genus of Ammonitida\ 

 Ceratodus (Gr. keras, 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. eervus, a stag). The family of the Deer. 

 Cestraphori (Gr. kestra, a weapon ; p/iero, 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. ketos, a whale). The order of Mammals comprising the Whales 



and the Dolphins. 

 Cetiosaurus (Gr. ketos, whale ; saura, lizard). A genus of Deinosaurian 



Reptiles. 

 Cheiroptera (Gr. chelr, hand ; pteron, wing). The Mammalian order of the 



Bats. 

 Cheirotherium (Gr. cheir, hand; therion, beast). The generic name applied 



originally to the hand-shaped footprints of Labyrinthodonts. 

 Cheikurus (Gr. cheir, hand ; oura, tail). A genus of Trilobites. 

 Chel^ (Gr. chele, a claw). The prehensile claws with which some of the 



limbs are terminated in certain Crustacea, such as the Crab, Lobster, &c. 

 Chelate. Possessing chela ; applied to a limb. 

 Chelicer^ (Gr. chele, a claw ; and keras, a horn). The prehensile claws of 



the Scorpion, supposed to be homologous with antennae. 

 Chelonia (Gr. chclone, a tortoise). The order of Reptiles comprising the 



Tortoises and Turtles. 

 Chelonobatrachia (Gr. chelone, a tortoise ; hatrachos, a frog). Sometimes 



applied to the Amphibian order of the Anoura (Frogs and Toads). 

 Chilognatha (Gr. chcilos, a lip ; and gnathos, a jaw). An order of the 



Myriapoda. 

 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, esjie- 



cially in the Arthropoda {Crustacea, Insecta, &c.) 

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



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



of Brachiopoda, &c. 

 Cirrieerous or Cirrigerous. Carrying cirri. 



