INDEX AND GLOSSARY 



color of, 23 1 



distribution of, 240-241 (Table VII) 

 eyestrain, 269 



falciform process, 118, 261-262*, 567, 575, 



577, 582-583*, 653 (see also 

 falcon (see hawks) [648-659) 



falconry, 169 

 Farancid (reptile: a rainbow snake) 



accommodation in, 438 



chorioid of, 629 



pupil of, 221, 225 



scleral pigment in, 628 



spertacle of, 450 



visual cells of, 165, 640 

 far point, 252*, 252 

 far-sightedness: hypermetropia, q.v. 

 'fatigue' (for colors), 93 

 Fechner, law of, 534-535* 

 FelidcB (mammals: cat family; see cats) 

 Felis (mammal: most cats ), anterior segment 

 ferret: Putorius, q.v. [of, 683 



Ferry and Porter, law of, 72 

 fibrous tunic: cornea -i- sclera, qqv. 

 Fick, 98 



Fierasfer: Encheliophis, q.v. 

 fighting-fish, Siamese: Betta, q.v. 

 filefish: Monacanthus, q.v. 

 Fincham, 33 

 finches, eye size in, 641 

 Finlay, 503 

 fishes, 134-137, 555-591, sub-indices on pp. 



555, 563, 569, 573, 589 

 fishing (angling) and color vision, 472 

 Fitzroya (teleost), evidence for chromato- 

 phore-controlling hormone secreted 

 by eye of, 530 

 fixation: aiming a particular spot of the retina 

 at a particular point in space 



binocular, 311,317-318 



eye-movements and, 300-312 



universal macularity and absence of, 312 

 flamingo, area and fovea of, 187 

 flatfishes (see also Bothidje, Pleuronertida, 



binocular field of, 292-293 [Soleids) 



color vision in, 482, 527-528 



dermal color changes of, 482, 526, 529- 



evolution of, 385 [530, 533-534 



eye-movements of, 303 



habits of, 374, 386 



pupils of, 220 

 movement of, 150 

 opercula of, 158, 160, 220, 222, 386 



retinal pigment migration in, 150 



turreted eyes in, 386 

 temporary lids of, 432 



visual cells of, 150, 586 



Flamming, 526 



flicker (of lights); see fusion, critical 



frequency of 

 flicker (a woodpecker) : Colaptes, q.v. 

 flounders: flatfishes (in part), q.v. 

 flower colors and color vision, 503-504 

 fluviatile: inhabiting running water, as rivers 

 flyingfishes 



freshwater: Pantodon, q.v. 

 time spent out of water by, 43 1 

 ventral binocular field of, 293 

 flying-frog: Polypedates, q.v. 

 flying-lemurs: Dermoptera, q.v. 

 flying-snake: Chrysopelea, q.v. 

 Fontana, spaces of, 441, 570, 679-680* 

 form discrimination, by carp, 489-490 

 fossorial vertebrates (see habits, fossorial) 

 'four-eyed' fishes: Anableps, Dialommus, 

 fovea, 181* [<iq-'>'- 



aphakic space and, 299, 305 

 'bifocal', 442 



chromatic aberration in, 195 

 clivus of, 188* 

 cone-density in, 625, 661 

 as corresponding point, 317-318, 322 

 depth of, 184, 187 (Table III) 

 distribution of, 184-186, 187 (Table III), 

 188-190, 303-312, 387, 588, 611, 

 620-621, 625, 689 

 effect of domestication on, 190 

 externa, 182* 



eye-movements and, 288, 291, 300-312 

 fishes, 303-305 

 reptiles, 305-307 

 birds, 307-310, 442 

 mammals, 310-311 

 length of visual cells in, 195, 692 (entry 



for p. 195) 

 muscle cells associated with, 281 

 oil-droplet colors in, 193 

 optical function of, 182, 183, 184 

 pure-rod, 189-190, 402, 621 

 relation to area centralis and macula lutea, 

 stimulation of, 71-73 [ 181-184 



substitute (see macula, substitute) 

 taxonomically: 

 teleosts, 184-185, 188, 292, 304 (list), 



deep-sea, 190, 402 [305 



Amyda, 184, 186, 190 

 Sphenodon, 188-190, 189, 617, 620-621 

 lizards, 173 (chameleon), 188, 625, 632 

 snakes, 185-186, 188 

 birds, 182-183, 188-189, 190, 193, 308- 

 309, 661-662, 692 (entry for p. 

 195) 

 primates, 7, 182, 188, 190, 661-662, 

 685, 689 

 foveolae optica, 105*, 119, 122-123 



