INDEX 



781 



Amphisbsenidse, degenerate eyes of, 733 

 AmphitretMS, 203 



tubular eyes of, 203 

 Amphimna, 349 



eyes of, 349 

 Anahas, accommodation in, 654 

 Anableps tetrophthalmus, 325 

 ciliary processes, 301 

 eyes of, 324, 326 



optics, 642 

 vision of, 641, 655 

 Anangiotic retina, 480 

 Anax, dorsal light reaction in, 74 



optomotor response, 589 

 Ancala fasciata, eyes of, 222 

 Angle gainma, 673 



in vertebrates, 676, 677 

 Anguilla, 46 



colour changes in, 96 

 cornea, 295 

 growth of eye of, 273 

 migration of rods, 614 

 optic nerve of, 311 

 phototaxis in, 46 

 retinal vascularization, 300 

 viveal tract, 299 

 Anguis fragilis, 363 



colour vision in, 629 



conus, 363 



parietal eye, 715, 718 



function of, 719 

 visual field, binocular, 682 

 Amelia, visual cells of, 364 

 Annelids, 190 



dermal sensitivity in, 114 

 eyes of, 190 

 light-sense in, 572 

 nerve-net, 516 

 nervous system, 519, 520 

 neuro -endocrine system, 550, 552 

 See also Polychsetes, Oligochsetes, 

 Leeches. 

 Annular ligament, characteristics in 

 chondrosteans, 317 

 holosteans, 321 

 lamprey, 267 

 teleosteans, 295 

 pad, characteristics in 

 birds, 409 

 chelonians, 372 

 crocodilians, 377 

 lacertilians, 360, 361 

 marsupials, 439 



Annular pad, characteristics in 

 monotremes, 436 

 snakes, 389 

 Sphenodon, 381 

 accommodation and, 649, 650 

 Anodonta, 201 



dermal sensitivity in, 114, 574 

 eyes absent in, 201, 722 

 Anolis, 361 



bifoveate retina, 365, 366 

 colour changes in, 87, 98, 105 

 control of, 558 

 rhythmic, 20 

 vision of, 629 

 parietal eye, 717 

 transparent eyelids, 366 

 alligator, eyelids, 366 

 fundus, 361, PI. VI 

 argenteolus, eyelids, 367 

 carolinensis, reproductive cycle in, 17 

 lucius, eyelids, 367 

 Anomalops katoptron, luminous organ in, 



737, 738 

 Anopheles, scototaxis in, 60 

 Anophthalmus, dermal sensitivity in, 114 



eyes lacking in, 724 

 Anoplura, 218, 220 

 eyes of, 221 

 See, also Pediculus. 

 Anoptichthys jorduni, degenerate eyes in, 



725 

 Anser, brain, 533 

 Anseriformes, annular jaad, 409 

 infula, 417 

 pecten, 412, 414 

 See also Ducks, Cereopsis, etc. 

 Ant, 219 



eyeless types, 729 

 homing of, 68 

 menotaxis in, 68 

 ocelli, 224 

 time-memory in, 22 

 vision of, 582, 585 

 white. See Termites. 

 Ant-eaters, 445 

 banded, 437 

 vision of, 601 

 giant, 600 



spiny. See Echidna. 

 Antelope, 446 



Anterior chamber angle, characteristics in 

 birds, 404, 405 

 chelonians, 372 



