666 



INDEX 



Draco, 320, 339 



Drepanidce, 597 



Dromeeognathous, 400* 



DromcKus, 383, 414 



Dryopithecus, 575 



Dryomis, 385 



Duck-Bill, 448, 465 See Ornithorhyn- 



chus 



Ducks, 388, 392, 400, 401 

 Ductless glands, of Cranial a, 82 

 Ductus Botalli, 304 

 Dugong, 452, 479, 485, 502, 503, 535, 



536 



Dujardin, 639, 642 

 Dumb-bell-shaped bone, 488 

 Duodenum, of Pigeon,'_368 : Rabbit, 431 

 Dura mater, 96 



E 



IAGLES, 388 



Eagle-rays, 164 



Ear, 197 : of Lamprey, 125 : Dog-fish, 

 151 : Elasmobranchii, 166 : Trout, 199 : 

 Frog, 265 : Lizard, 309 : Reptilia, 335 : 

 Pigeon, 353, 378 : Aves, 407 : Rabbit, 

 433 : Mammals, 548 



Echeneis, 210 



Echidna, 448, 462, 463, 464, 465, 485, 

 487, 488, 489 



Echidna aculeata, 465, 525, 539, 543, 546, 

 547, 549, 563 



Ectocuneiform, 429 See Limb-skeleton 



Ecto-ethmoids, of Craniata, 73 See 

 Skull 



Edentata, 449*, 492, 532, 542, 552 



Edestoxanrm, 350 



Eels, 205, 212, 213, 225, 226 



Efferent branchial arteries, 86 See Vas- 

 cular system 



Efts, 272 



Egg -See Development 



Egg-shell, of Dog-fish, 153: of Elasmo- 

 branchs, 167 : Holocephali, 181 : Rep- 

 tiles, 341 : Birds, 407 : Prototheria, 

 564 



Ehrenberg, 642, 646 



Elasmobranchii, 134 : Example, 135 : 

 Distinctive characters and classifica- 

 tion, 154 : External characters, 157 : 

 Integument and exoskeleton, 158 : 

 Skeleton, 158 : Muscles, 162 : Electric- 

 organs, 163 : Digestive system, 164 : 

 Respiratory organs, 164 : Blood system, 

 164 : Brain, 165 : Organs of sense, 165 : 

 Urinogenital organs, -166: Impregna- 

 tion, 167 : Eggs, 167 : Development, 

 168: Ethology and distribution, 172 

 Electric Cat-fish, 217 

 Electric Eel. 217 

 Electric lobe, 164, 165 

 Electric rays, 157, 163, 165 



Elephant, African, 508 



Elephants, 454, 462, 474, 535 



Ehphas, 454 



E/ephas africanus, 508, 535 



Elevator muscles, 256 



Elimination, 617 



Embryonic membranes, of Bird, 412, 413 



Embryonic rim, 168 



Embryonic shield, 337 



Empedocles, 635 



Emus, 383, 389, 393, 395, 402, 404 



Emys europcea, 327, 329, 331 



Enamel, 78, 79 



Enamel membrane, 526 



Enamel organ, 80, 526 



Enamel pulp, 527 



Encephaloccele, 47 



End-buds, 100 



Endolymph, 109 



Endolymphatic duct, 108 



Endoskeleton See Skeleton 



Endostyle, of Ascidia, 14 : Appendicu- 

 laria, 21 : Dotiolum, 23 : Ascidian 

 larva, 32, 33 



Enywns, 586 



Entepicondylar foramen, 496 



Enteric canal See Digestive Organs 



Enterocoele, of Amphioxus, 53 



Enteropneusta, 1 



Entocuneiform, 429 See Limb-skeleton 



Eocene, 604 



Eotherium, 604 



Epencephalon, 94 



Ependyme, 94*, 96 



Epicentrals, 214 



Epi-branchial, of Craniata, 71 



Epiccele, 94 



Epicoracoid, 253 : Prototheria, 488 



Epicrium, 273 



Epicrium glvtinoxum, 290 



Epidermis, of Amphioxus, 40 ; Craniata, 

 63 



Epiglottis, of Rabbit, 431, 437 : Mam- 

 malia, 544 



Epiglottis, intra-narial, 544 



Epi-hyal, of Craniata, 71 



Epineurals, 214 



Epi-otic, of Craniata, 72 



Epiphyses, of Craniata, 78 : Rabbit, 

 419 : Mammals, 479 



Epiphysis (cerebri), of Craniata, 96 



EpipLeurals, 214 



Epipterygoid, 297 

 Epi-pubic bones, 489, 492 

 Epipubic process, 162 

 Epi-pubis, 282 : Birds, 404 

 Episternum, of Lizard, 299 : Rabbit, 



426 : Prototheria, 485 

 Equidc', 474 



Equus caballii*, 505, 510, 511 

 Erinaceida 1 , 457 

 Erinaceus, 476 

 Ethiopian region, 593 



