INDEX 



511 



Cartilaginous, 



capsule of eyes of Cephalopods, 50 



endoskeleton of ostracoderm fishes, 475 

 Castration, effects on pineal body, 429 

 Catostomas teres, pineal organs of, 217 

 Cavum pineale, 476 

 Cell(s), 



amacrine, 407 



bipolar, 17 



columnar, 70, 191 



definitive ependymal, 381 



differentiation of, in neural tube, 322 



ganglion, of retina, 17, 69, 70 



germinal, 382 



giant, 432 



gustatory, 17 



hypoblast, secretion of, 474 



hypoderm, 48, 58 



interstitial, 58, 356 



microglial, 386 



neuro-sensory, 17 



neuronoid, 407, 476 



olfactory, 17 



palisade, 58 



parenchymatous, 316, 317, 398 



perineural, 53 



perineuronal, 385 



pigment, 69, 70, 191 



primary sensory, 17 



proparenchymatous, 316 



receptive, 17 



receptor, 17 



retinal, 49, 70 



satellite, 385 



secondary sensory, 17 



specialization of, 367 



stratified squamous, 58 



supporting, 191 



transitional types, 407 



unipolar, 17 



visual, 17, 58, 69, 356 

 Central connections of visual paths in 



cephalopods, 166 

 Central nervous system, origin of, 82 

 Centrophorus granulosus, T-shaped end- 

 vesicle of, 207 

 Centrum parietale, 278 

 Centrums, 371 

 Cephalaspidomorphi, 344 

 Cephalaspis, 191, 359, 467 

 Cephalic appendages, 



of Asterolepis, 472 



of Bothriolepis, 470. 472 



of Merostomata, 472 

 Cephalic groove, 



of Agelena, 128 



of Peripatus, 114 

 Cephalochorda, 178 

 Cephalodiscus, 168 

 Cephalopods, 354 



development of, 167 



dibranchiate, 163 



eyes of, 161 



tetrabranchiate, 163 

 Cephalon, of Trilobites, 136 



Cephalo-thoracopagus, 

 disymmetros, 32 

 monosymmetros, 31, 34, 256 

 Ceratodus, 221, 222, 335 

 Ceratophorus, 252, 



aspera, 273 

 Cerebellar signs, 438 

 Cerebellum, 



invasion of, by tumours, 433, 436 

 superior vermis, 420 

 Cerebral 



cortex, incision in, 447 

 ganglia, of apical plate, 150 

 ganglion, of Rotifers, 89 

 groove, of Peripatus embryo, 114 

 hemispheres, extension of tumours into, 

 287 

 signs of involvement, 438 

 lobe, middle of Sepiolia, 164 

 veins, 443 

 vesicle, 378 

 Chalcides tridactylus, 282 

 Chalcis flavescens, 281 

 Chamber, 

 anterior, 164 

 posterior, 164 

 Chameleon, 270 



Cheirotherium, footprints of, 235 

 Cheeks, 



fixed, of Trilobites, 136, 141 

 movable or free, of Trilobites, 136, 141 

 Chelicera, 377, 378 

 Cheliceral ganglion, 128, 371, 376 

 Chelone, 285 



Chelonia, Pineal system of, 285 

 Chelydra serpentina, 285, 286 

 Chiasma, 

 externa, 122 

 habenularum, 192 

 interna, 122 

 Chitin, chemical composition of, 474 

 Chitinous 



lens, 124, 125 



of eye of Acilius larva, 120 

 shell, secretion of by hypoblast cells, 474 

 Chiton, 147, 157, 158 



dorsal eyes of, 22 

 Chlamydosaurus, 273 

 Cholesteatomata, 430 

 Chondriocontes, 399 

 Choroid 



layer, of retina, 357 

 plexus, 369 



calcification of, 2 

 plexus(es), 



calcification of, 412 

 engorgement of veins, 436 

 Choroidal villi, 451, 465, 466 

 Chromatophoral layer, 

 of connective tissue, 58 

 of epithelium, 58 

 Chromatophore, 60 

 dermal, 61 

 migration of, 72 

 Ciliary body, 164 



