744 



INDEX AND GLOSSARY 



fowl, domestic: Callus, q.v. 



Fox, 534 



foxes: Vulpes et al 



flying-: Megachiroptera, q.v. 



optic axes of, 297 



pupils of, 162, 227 



tapetum lucidum in, 232 

 Franz, 131-132, 139, 284, 286, 372, 406, 



429, 655, 661, 664, 666, 677 

 freezing posture, 309, 344-345 

 Freytag, 481 

 Friedrich, 492-493 

 Frima, 515, 521 



von Frisch, 474, 479-483, 531-532 

 frogmouth: Podargus, q.v. 

 frogs: Anura (in part), q.v.; see also Rana, 

 frontality, 290* [Ranidae 



binocularity and, 3 1 1 



ocular mobility and, 309 



partial decussation and, 320 

 Froriep, 119, 121-122 

 fruit-bats: Megachiroptera, q.v. 

 fry: young fish 

 Fuchs, 542 



Fiirst, fiber of, 55, 58 

 fuliguline ducks, 441 

 Fundulus (teleost: killifish) 



dermal color changes of, 481, 525-526, 

 532, 534 



double (?) cone of, 59, 587 



dual ares centrales in, 188 

 fundus, 47* 



fuscin: the melanin-like pigment of the ret- 

 inal pigment epithelium, 236-237, 

 fusion [478, 585, 659 



binocular 



basis of, 320-326, 331-338 

 cerebral center of, 90-91, 321, 335 

 kinds of, 333-334 

 mosaic theory of, 324, 333 

 prerequisites for, 315-319 



of colors, 83-84, 90-91, 335, 355, 364-365 



critical frequency of, 70, 72*, 350-365, 520 



psychic, 91, 321, 322*. 323, 334-335, 

 337-338 



G 



Gadids (teleosts: cod family) 



accommodation (lacking) in, 583 



campanula (lacking) in, 586 



falciform process in, 582 



origin of, 399, 586, 636 



scleral ossicles (lacking) in, 586 



visual-cell mosaic in, 588 

 Gadus (teleost: cod) 



annular ligament of, 581 



falciform process of, 582 



visual cells in, 586 



Gaffron, 363-364 



Galago (mammal: a lemuroid) 



color blindness of, 520 



frontality of, 327, 331 



pupil of, 228 



tubulareyeof, 213, 677-678 

 Galeopithecus (mammal: a flying-lemur), 



139, 676 

 Galeopterus (mammal: a flying-lemur), 



139, 676 

 GaleorhinidcB (elasmobranchs: requin shark 

 family), 692 (entry for p. 386) 



lid complex of, 382, 386, 429, 563 

 GallinacesB (birds: fowls etc.; see also 



G alius), pecten in, 655 

 gallinules, head movements of, 342 

 G alius (bird: domestic fowl) 



accommodation of, 281 



binocular field of, 298, 307 



color vision of, 497-502 



distance-judgement of, 327 



flight muscles of, 164 



fovea (lacking) in, 190 



head movements of, 342 



oil-droplets in 



pigments of, 192, 198 

 red field of, 307, 502 



pecten of, 649 



retina of, 659-660 



visual acuity of, 207 

 Gambusia (teleost: mosquito-fish) 



protective coloration of, experiments with, 



dermal color changes of, 524, 534 [524 

 gannet, Morus, q.v. 

 'ganoid' fishes, 137* 

 Ganson, 506 



Garrulus (bird), pecten of, 655 

 gars, 'gar-pikes': Lepisosteus, q.v. 

 garter snake: Thamnophis, q.v. 

 Gasserian ganglion, 1 72 

 Gasteropelecus (teleost: hatchet-fish), flight 



of, 431 

 Gasterosteus (teleost: a stickleback) 



color-associations and brain surgery in, 522 



color vision in, 483, 487-489, 522 



lens and ultra-violet light, 375, 488-489 

 Gates, 505 

 Gazelle (mammal: an antelope), corpora 



nigra of, 219 

 geckoes (lizards: Gekkonidee -(- Eublepharidas 



accommodation in, 254 [-1- Uroplatus) 



ciliary muscle in, 624 



classification of, 623 



color vision in, 520 



contrasted with snakes, 634 



conus papillaris in, 625, 653, 658 



dermal color changes in, 540-541 



Descemet's layers (lacking) in, 623 



