INDEX 



789 



Caterpillar, 46 



colour changes in, 92 



nervous system, 522 



ocelli, 222 



phototaxis in, 46, 114 



vision of, 582 

 Catfishes. See Siluridae, Ameiurus, etc. 

 Cattle {Bos taurus), 446 



area centralis, 485 



blood supply to eye, 499, 500 



cinary ganglion, 501 



colour blindness of, 624, 634 



conjunctiva, 491 

 glands of, 491 



cornea, 453 



epithelium of, 452 



lacrimal gland. 493 



Moll's glands. 492 



nictitating membrane, 493 



optic axis, 688 



orbit, 498 



pectinate ligament, 464 



pineal organ, 716 



pupillary reactions, 472 



retinal vascularization, 479 



visual field, binocular, 689 

 uniocular, 672 



vitreous, 476 

 Caudata. See Urodeles. 

 Causus rhombeatus, visual cells, 391 

 Cave-fishes, 725 



degenerate eyes in, 725 



dermal sensitivity, 114 

 Cavemicolous habit, degenerate eyes due 



to, 724 

 Cavia. See Guinea-pig. 

 Cavy, Patagonian, diurnality of, 604 

 pupil, 472 



spotted, optic axis, 688 



tapetum fibrosum, 458, 609 



See also Guinea-pig. 

 CajTnan. See Caiman. 

 Cebidse, 443 



See also Monkey, capuchin ; Xycti- 

 pithecus, etc. 

 Cebus. See Monkey, capuchin. 

 Cells of Hesse, 230 



of Joseph, 229 

 Centipedes, 210 



eyes of, 210 



See also Myriapods. 

 Central body, in arthropods, 521 



nervous sytem, 630 



Central organization of vision, 509 

 Centrophorus calceus, pupils, 286 

 Centrostephanus longispinus, 117 



pigment in, 117 

 Cephalaspis, 234 

 eyes of, 238 

 pineal organ, 713 

 Cephalochordata, 228 

 See also Amphioxus. 

 Cephalopods, 196 



accommodation in, 590 

 blind, 723 



cerebral ganglion, 528 

 chromatophores, 85, 86 

 colour changes in, 82, 93, 105 

 eyes of, 143, 201 



degenerate, 723 

 iris, contraction to light, 89 

 luminovis organs in, 740 

 nervous system, 527 

 neuro-secretory cells, 552 

 pupils, 146 



contraction of, 89 

 retina, 145 

 vision of, 575 



See also Octopus, Sepia, Nautilus, etc. 

 Cephalopsin, 120 

 Cerambycidae, eyes of, 160 

 Ceratopogon, eye of, 224 

 Cercocebus. See Mangabey. 

 Cerebral cortex, 543 

 ablation of, 545 

 Cerebral (cephalic) ganglion, 518 



in arthropods, 521, 522, 525, 526 

 activity of, 524 

 function of, 524 

 removal of, 525 

 molluscs, 527 



worms, segmented, 519, 520 

 unsegmented, 518, 519 

 vesicles, 531, 532 

 Cereopsis, annular pad, 409 



pecten, 412 

 Cervus porcinus, fundus, PI. XIV 

 Cestodes, 187 



nervous system, 519 

 sense organs lacking in, 734 

 Cetaceans, 446 

 choroid, 457 

 cilia lacking, 492 

 ciliary receptor organs, 467 

 cornea, 453 



keratinized, 456 



