424 



INDEX — GLOSSARY 



derms, 149; of edentates, 382; of 

 elephant, 387, 388; of fore arm of 

 horse, 3Q4 ; of fore foot of horse, jgj, 

 394 ; of fore leg of horse, 3Q4 ; of 

 hind foot of horse, 393, 394 ; of horse, 

 393-396; of Hyracoidea, 385; of 

 mammals, 83 ; of molar teeth of the 

 horse, 393, 394, 396 ; of monocotyle- 

 dons, 80; of Pecten, 231-232; of 

 Pentacrinus, 162; of Pinnipedia, 381; 

 of plants, 31; of Platystrophia, 200 ; 

 of Primates, 399; of pythonomorphs, 

 367 ; of raccoons, 381 ; of ruminants, 

 398; of sea cows, 397, 39S; of skull 

 of horse, 3Q2, 303; of spine-bearing 

 cephalopods, 363 ; of spinous shells, 

 363 ; of teeth of artiodactyls, 396 ; 

 of trachea, 310; of twisted cephalo- 

 pods, 363 ; of whales, 399 ; Unguic- 

 ulata in, 399. 



Excretion, in Amoeba, 86; in cephalo- 

 pods, 257 ; in gastropods, 237 ; in 

 Protozoa, 86. 



Excurrent can'als, gg, 100. 



Excurrent siphon, in pelecypods, 209, 

 2og, 211, 212. 



Exhalent siphon, excurrent or anal 

 siphon. 



Exogyra, 227-228; E. arietina, 227, 

 228; compared to the oyster, 227. 



Exopodite, 276; of the crayfish, 276; 

 of the lobster, 279; of the trilobite, 

 286, 288. 



Exoskeleton, the protection surrounding 

 the soft body, as the shell of brachio- 

 pods and pelecypods, and the hair of 

 mammals. 



Extensor muscle, 278, 279. 



Extinction, of Pleistocene mammals 

 from North America, 376 ; of species, 

 causes of, 374-376. 



Eye-line in trilobites, 286, 291. 



Eye lobe, 289, 2g6. 



Eyes, of A pus, 300, 301; of cat, 334; 

 of cephalopods, 252, 253, 257-258, 

 270; of crustaceans, 276, 279, 282, 

 286, 300, 301 ; of Estheria, 302 ; of 

 Eurypterus, 315 ; of gastropods, 238 ; 

 of insects, 3ig ; of mammals, 334 ; 

 of Nereis, 145; of pelecypods, 213, 

 221; of phyllopods, 302; of squids, 

 270-271 ; of starfish, 150 ; of trilo- 



bites, 286, 28g, 291, 2P5, 2g6, 2g8; 

 of vertebrates, 334; squid and nauti- 

 lus compared, 270; squid and verte- 

 brate compared, 270. 



Face, 392. 



Facets, in eye of dragon fly, 317; in 



eye of house fly, 317; in eyes of 



trilobites, 291-292, 2g8. 

 Facial sutures in trilobites, 286, 287, 



2g3, 2g6. 

 Faeces, of brachiopods, ig3. 

 Fangs, 381. 



Fats, in vertebrate digestion, 332. 

 Favosites, 136; F.favosus, 137. 

 Feathers, development of, 369. 

 Felidae, 381. 

 Felis domestica, 324-337, 323, 326, 327, 



330. 

 Femur, of cat, 323, 328; of mammals, 



383; of reptiles, 338, 360, 362, 366, 



367- 



Fenestella, 179; F . filistriata, 180; pro- 

 tcecium of, 180; zooecia of, 179, 180. 



Ferns, Christmas, 45, 46 ; fossil, 46-48 ; 

 geologic range of, 408 ; royal, 46 ; 

 sensitiv-e, 43, 46, 47, 48. 



Fertilization, in angiosperms, 43, 76; 

 in brachiopods, 186. 



Fever, yellow, 84. 



Fibula, of birds, 372; of cat, 325, 328; 

 of mammals, 325, 328, 385, 394; of 

 reptiles, 360, 366, 367. 



Fig, 77- 



FiHcales, 46-48 ; see ferns. 



Finger bones, see phalanges. 



Finger stone, 272. 



Fins, anal, 340 ; caudal, 340 ; compared 

 to limbs of higher vertebrates, 344; 

 dorsal, 340; paired, 340, 340; pec- 

 toral, 340, 340; pelvic, 340, 340; 

 probable development of, 339, 340; 

 tail, caudal; 340; unpaired, 340; 

 ventral, 340, 340. 



Fishes, 339-3491 born alive, 339; 

 caudal fin of, 340 ; development of 

 fins of, 339-340, 340 ; development 

 of skull of, 339 ; diagram showing 

 development of fins, 340 ; differ from 

 amphibians, 349 ; eggs of, 339 ; food 

 of cephalopods, 256; food of ich- 

 thyosaurs, 358; food of plesiosaurs, 



