666 



INDEX 



Draco, 320, 339 



Drepanidce, 597 



Dromseognathous, 400* 



DromcKUS, 383, 414 



Dryopithecus, 575 



Dryornis, 385 



Duck-Bill, 448, 465 See Ornithorhyn- 



clius 



Ducks, 388, 392, 400, 401 

 Ductless glands, of Craniata, 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 



E 



lAGLES, 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 acuhata, 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 



Edestosaurus, 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 



Elephas, 454 



Elephas africanus, 508, 535 



Elevator muscles, 256 



Elimination, 617 



Embr3 7 onic 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 



Encephalocoele, 47 



End-buds, 100 



Endolymph, 109 



Endolymphatic duct, 108 



Endoskeleton See Skeleton 



Endostyle, of Ascidia, 14 : Appendicu- 



laria, 21 : Doliolum, 23 : Ascidian 



larva, 32, 33 

 Engcvus, 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 

 Epicoele, 94 



f* 'coracoid, 253 : Prototheria, 488 

 crium, 273 

 crium ylutinomm, 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 



Equidce, 474 



Equus caballus, 505, 510, 511 



Erinaceidce, 457 



Erinaceus, 476 

 Ethiopian region, 593 



