INDEX AND GLOSSARY 



759 



of iris (see iris, muscles of) 

 levator bulbi, 419, 432, 594 



derivative of, 606 

 levator of upper lid, 40, 425, 644 

 masticatory, as source of levator bulbi, 594 

 oculorotatory (see also eye-movements) 



absence of, 606 



accommodation and, 259-260 



control of, 329-331 



derivatives of, 422, 425 



electric organ evolved from, 293 



functionless, 293, 306, 309, 412-413, 

 601, 606, 642 



innervation of (see nerves) 



not attached to eyeball, 606 



oblique, function of, 303, 565 



pathology of, 329, 331 



primitive function of, 303, 546-565 



reflexes of, 300-303 



scleral thickness and, 415 



space-perception and, 300-312 



surgical interchange of, 311-312, 328- 



taxonomically: [329 



fishes in general, 303-305, 565 



lampreys, 258-260, 556 



elasmobranchs, 564, 642 



sturgeons, 569 



holosteans, 573-574 



teleosts, 432, 578 



anurans, 594 



urodeles, 601 



cscilians, 606 



birds, 270, 642 



monotremes, 665-666 



marsupials, 671 



placentals in general, 665-666 



whales, 412-413 



man, 36- 39, 37 

 orbicularis oculi, 39-40*, 41, 425, 445, 



578, 644 

 platysma: thin, sheet-like muscles imme- 

 diately beneath the skin in mam- 

 mals — those which a horse uses to 

 'twitch off' a fly; vestigial in man 

 except on the head and neck; 389, 

 423 

 protractor lentis, 259-260, 262, 266-267, 

 269, 565, 567, 595, 597, 602, 608, 



and ciliary folds, 372, 597 [610 



pyramidalis 



in chelonians, 42 1 -422 



in crocodilians, 421 



in birds, 420-421, 424 

 retraaor bulbi 



derivative of (bursalis), 642 



erroneous attribution to rays, 452, 692 

 (entry for p. 452) 



history of, 419-420 



leaving eyeball in adult, 606 

 taxonomically: 



amphibians, 419, 421, 594, 601, 606 

 chelonians, 421-422, 427 

 crocodilians, 421-422 

 5pAenoc/on, 421, 617 

 lizards, 421 



birds (lacking), 424-425, 642 

 monotremes, 665 

 marsupials, 671 



placentals in general, 420, 427 

 sirenians, 408 

 whales, 412 

 man, 38 

 retractor lentis ('campanula Halleri'), 



130-131, 261-262, 269, 567, 575, 

 577, 583, 605 

 striated, 269*, 630, 686-687 

 of temporary lids, 578 

 tensor chorioidea, 263*, 279, 577, 583- 



584, 597, 605 

 transversalis, 269, 278-279, 299, 437, 

 608, 610, 614, 619, 624 

 musk-turtles: Kinostemidje, q.v. 

 Mustelidae (mammals: weasel family of 

 carnivores — mink, otter, marten, 

 amphibious, 443 [etc.) 



optic axes in, 297 

 Mustelus (elasmobranch: a galeorhinid 'dog- 

 anterior segment of, 565 [fish') 

 area centralis of, 184-185, 187, 243, 245 

 lids of, 429 



mydriatic pupil rigor in, 159 

 tapetum lucidum of, 243-245, 244 

 visual cells of, 184, 518, 561,568 

 mutations: unpredictable, marked, hereditary 

 peculiarities which appear in prog- 

 eny, but whose basis is in acciden- 

 tal changes in the germ-plasm of 

 the parental generation; e.g., the 

 occurrence of an albino in a nor- 

 mal strain or family 

 of loss, 389* 

 Muybridge, 352, 367 



Mycteropercd (teleost: an epinephelid), eye- 

 movements, pupil, and possible 

 fovea of, 304-305 

 Myctophida (teleosts: a lantern-fish family) 

 habits of, 402 

 retina in, 399 

 stalk-eyed larva in, 405 

 Myctophum (teleost: a myctophid), onto- 

 genetic change of eye shape in, 405 

 Myliobatidae (elasmobranchs: eagle rays), 



aim of eyes in, 386 

 Myliobatis (elasmobranch: eagle ray) 

 pelagic habit of, 243 

 pupillary operculum of, 386 



