INDEX. 



42 s 



Emballonura, 388. 

 Emballonuridae, 387. 

 Embiotoca, 260. 

 Embiotocidse, 260. 

 Embolomeri, 283. 

 Embolomerous, 136. 

 Emeu, 346. 

 Empedias, 304. 

 Emperor fish, 262. 

 Emydae, 311. 

 Enamel, 19. 

 Enamel organ, 19. 

 End buds, 68. 

 Endolymph, 71. 

 Endolymphatic duct, 70. 

 Endothelium, 9. 

 Engraulis, 256. 

 Engystoma, 287. 

 Engystomidas, 287. 

 Enhydris, 412. 

 Ensiform process, 149, 356. 

 Entelops, 383. 

 Enteroccele, 7. 

 Enteropneusti, 3. 

 Entepicondylar foramen, 



304- 

 Entoderm, 6. 

 Entodermal organs, 17. 

 Entoglossum, 335. 

 Entoplastron, 308. 

 Eohippus, 395. 

 Epiaxial muscles, 109. 

 Epiblast, 6, 

 Epibranchial, 154. 

 Epicentrals, 144, 246. 

 Epicoele, 50. 

 Epicoracoid, 170. 

 Epidermal structures, 87. 

 Epidermis, 87. 

 Epididymis, 130. 

 Epiglottis, 370. 

 Epihyal, 155. 

 Epimere, loi. 

 Epimerals, 144, 246. 

 Epiotic, 158. 

 Epiphysis, 85, 134, 355. 

 Epiplastron, 308. 

 Epipleurals, 144, 246. 

 Epipubis, 171. 

 Episternum, 149, 308. 

 Epistropheus, 142. 

 Epithelium, 9. 

 Epitrichium, 88. 

 Epoophoron, 129. 



Equidae, 395. 

 Equus, 395. 

 Erethyzon, 391. 

 Eretmochelys, 310. 

 Erinaceidse, 385. 

 Erinaceus, 385. 

 Erismatopterus, 256. 

 Ermine, 412. 

 Eryops, 283. 

 Erythrinus, 255. 

 Eschatius, 398. 

 Esocidas, 257. 

 Esox, 257. 

 Esthonyx, 403. 

 Etheostoma, 259. 

 Ethmoid, 357. 

 Ethmoid plate, 152. 

 Eumeces, 320. 

 Eumylodus, 242. 

 Eunectes, 325. 

 Euornithes, 347. 

 Eurhipidurse, 345. 

 Eurycormus, 252. 

 Eurylaima, 351. 

 Eurylepis, 251. 

 Eurypharynx, 257. 

 Euselachii, 238. 

 Eustachian tube, 73. 

 Eusthenopteron, 249. 

 Eusuchia, 328. 

 Eutainia, 325. 

 Eutheria, 378. 

 Exoccipital, 157. 

 Exoccetus, 257. 

 Exocoetidse, 257. 

 Exoskeleton, 91. 

 External carotid, 183. 

 External ear, 24. 

 External gills, 24. 

 Eye, pineal or parietal, 85. 

 Eyes, 78. 



Facial angle, 358. 

 Falciform process, 231. 

 Falco, 348. 

 Fallopian tube, 127. 

 Fascia, 112. 



Fasciculus cuneatus, 54. 

 Fasciculus gracilis, 54. 

 Fat, 13. 



Feather tracts, 95. 

 Feathers, 94, 330. 

 Felidas, 412. 

 Felis, 412. 



Felsinotherium, 405. 

 Femoral artery, 191. 

 Femur, 176. 



Fenestra ovalis, 72, 159^. 

 Fenestra rotunda, 72. 

 Fer-de-lance, 326. 

 Ferret, 412. 

 Fertilization, 5. 

 Feras, 410. 

 Fetterbone, 394. 

 Fiber, 390. 

 Fibrillations, 10. 

 Fibula, 176. 

 Fibulare, 176. 

 Fierasfer, 261. 

 Fierasferidae, 261. 

 Fifth ventricle, 57. 

 File fish, 266. 

 Filoplumes, 95. 

 Filum terminale, 48. 

 Fin-back whale, 410. 

 Fins, 167, 177, 228, 229. 

 Firmisiernia, 287. 

 Fishes, 228. 

 Fissilinguia, 320. 

 Fissipedia, 411. 

 Fistularia, 258. 

 Fistularidae, 258. 

 Flamingo, 348. 

 Flat fishes, 264. 

 Flexures of brain, z^6. 

 Floccular lobes, 338. 

 Flounder, 265. 

 Flying fish, 257, 260^ 

 Flying fox, 388. 

 Flying squirrel, 390- 

 Fodientia, 382. 

 Fontanelle, 157, 234., 

 Food yolk, 205. 

 Foramen jugulare, i66_ 

 Foramen lacerus, 164. 

 Foramen magnum, 157* 

 Foramen of Monro, 50. 

 Foramen, obturator, 170. 

 Foramen ovale, 165. 

 Foramen rotundum, 165-- 

 Fore brain, 48. 

 Formicaria, 351. 

 Fornix, 55. 



Fossa rhomboidalis, 54.. 

 Fowl, 350. 

 Fox, 412. 

 Fregata, 347. , 

 Frigate bird, 3^7^ 



