736 



INDEX AND GLOSSARY 



cornea — cont'd 



placentals, 677-678 



cornification in, 412, 445, 665, 678 

 man, 6-8, 9, 10-12, 27-28, 29-30, 38, 

 sirenians, 408-409 [40-41 



whales, 412-414, 413, 416 

 Corona, 535 



Coronella (reptile: a colubrid snake), zonule 

 corpora nigra (see pupil) [of, 630 



corresponding points 317*-318, 322, 329-331 

 cortex, cerebral (visual), 329, 334-335 



resolving power of, 207 

 Corydoras (teleost: a catfish), eye and false 



blink of, 303, 387 

 Coryphanoidida (teleosts: grenadiers) 

 as ancestors of cods, 398-399, 586 

 eyes of, 398 

 Coryphopterus (teleost), internal coloration 



of, 528 

 Corythomantis (amphibian: an anuran), 

 Cott, 341, 544, 546 [pupil of, 223 



Cottidse (teleosts: sculpin and muddler fam- 

 ily), pleated conjunaiva in, 454 

 Cottus (teleost: a cottid), dermal color 



changes in, 481 

 Cotylosauria (earliest reptiles) 

 closeness of chelonians to, 608 

 color vision in, 520 

 sclera in, 274 



taxonomic position of, 135, 608 

 visual cellsof, 612, 621,637, 691 

 cougar (American lion), eye and nasad 



asymmetry thereof, 173, 300, 678 

 cow: Bos, q.v. 



Crampton, 524; muscle of, 279*-281, 280, 

 Crenilabrus (teleost) [441, 646 



dermal color changes in, 481-482 

 development of sclera in, 579 

 Creodonta (extinct mammals), 675-676 

 crepuscular: active in twilight — specifically, 



evening twilight (c/. auroral) 

 Criinas (amphibians: bufonid sub-family), 



vertical pupil in, 223 

 Crocidura (mammal: a shrew), visual cells 



in, 685 

 Crocodilia (alligators, caymans, crocodiles, 

 gavials) 

 accommodation and refraction in, 251, 



272-274, 279, 436, 614 

 adnexa of, 162,421-422, 436 

 area centralis in, 184-185, 187, 616 

 coloration of eye and body in, 613 

 color vision in, 496, 519 

 comparison with sirenians and whales, 422 

 conus papillaris in, 615, 653, 657 

 departure from standard reptilian pattern, 

 dermal color changes in, 542-543 [622 



eye movements in, 305 



eyeshine and tapetum lucidum in, 231, 



238, 240, 616, 654 

 fibrous tunic in, 270, 274, 613 

 habits of, 145, 150, 162, 184-185, 200, 

 lens in, 614, 620 [274,436,543 



ocular size and shape in, 613 

 pupil in, 145, 162, 220, 224, 238, 496 



speed of, 150,501, 614 

 resemblance to monotremes, 669 

 retina in, 162, 615-616 



photomechanical changes of, 150, 162, 

 taxonomic position of, 135, 138 [238 



uveal tract in, 613-614, 623, 654 

 visual acuity in, 184-185, 207 

 visual cells in, 200, 615-616, 621, 661 



oil-droplets claimed for, 616 

 visual fields of, 293-294, 443 

 Crocodilus (reptile: a crocodilian), adnexa 



in, 422 

 Crossopterygii, 136* (see also Latimeria) , 

 as ancestors of Amphibia, 135, 

 588-589 

 Crotalidae (reptiles: pit-viper family; see also 

 Agkistrodon, Crotalus, Trimer- 

 habits of, 201 [esurus) 



pupil in, 165,221,225 

 retina in, 165 



visual cells in, 166, 639-640 

 Crotalus (reptile: rattlesnake) 

 dermal color changes in, 542 

 spectacle in, 450 



development of, 454-455 

 Crotaphytus (reptile: an iguanid lizard), 

 Crozier, 520 [visual cells of, 62, 626 



crumen: a cheek gland of ruminants; 546 

 Cryptobranchidae (amphibians: a urodele 



family; see Cryptobranchus, Megat- 

 chararteristics of, 600 [obatrachus 



sclera in, 601 

 Cryptobranchus (amphibian: hellbender) 

 habits of, 407 



thick scleral cartilage of, 415, 602 

 visual field of, 291 

 Cuniculus (mammal: spotted cavy) 

 pupil of, 221 



tapetum lucidum (unique for rodents) 

 and eyeshine of, 230, 233, 241 

 Cyclopean eye, physiological, 324* 

 cycloplegic, 447* 



cyclostomes: Cyclostomata (lowest vertebrate 

 class, comprising lampreys and 

 hags, qq.y.}, 135*-136, 555-562, 

 sub-index p. 555. 

 Cyclothone (deep-sea teleost), photophores 



of, 402 

 Cygnus (bird: a swan), eye of, 643 

 Cynictis (mammal: a viverrid carnivore) 

 diurnality of, 686 



