706 



INDEX 



E 



E 



AGLES, 416, 428, 436 

 Eagle-rays, 177 



Ear, of Craniata, 115 : of Lamprey, 134 : 

 Myxine, 141 : Dog-fish, 163 : Elasmo- 

 branchii, 179 : Trout, 214, 215 : Frog, 

 284,286: Lizard, 331, 332: Reptilia, 

 362 : Pigeon, 380, 406 : Aves, 435 : 

 Rabbit, 453, 472 : Mammals, 581, 582 

 Eared Seals, 484, 506, 599 

 Earless Seals, 484 See Phocida> 

 Ecdysis, 342 

 Echtneis, 226 



Echidna, 478, 490, 491, 492, 493, 516, 

 518, 519, 520, 521, 557, 562, 575, 579, 

 597 



Echidna acideata, 493, 519, 571, 578, 579 

 Echidna hystrix, 491 

 Ectocuneiform, 458 See Linib-sketeton 

 Ecto-ethmoids, of Craniata, 79*, 80 See 



Skull 



Ectopterygoid, 318, 319 

 Edentata, 479*, 524-530, 557, 564, 575, 



584, 598, 604 

 Edestomurus, 377 

 Eels, 196, 220, 224, 227, 229, 237, 239, 



241, 242, 243 

 Efferent branchial arteries of Amphioxus, 



51 See Vascular system, 92 

 Efts, 293, 296 

 Egg See Development 

 Egg-shell, of Dog-fish, 166 : of Elasmo- 

 branchs, 181 : Holocephali, 196 : Rep- 

 tiles, 368 : Birds, 435 : Prototheria. 

 587 



Ehrenberg, 682, 686 

 EJjeoblast, 41* 



Elasmobranchii, 66, 144 : Example, 144 : 

 Distinctive characters and classifica- 

 tion, 166: External characters, 170: 

 Integument, 171 : Skeleton, 172 : 

 Muscles, 176 : Electric organs, 176 : 

 Luminous organs, 177 : Digestive 

 system, 177 : Respiratory organs, 178 : 

 Blood system, 178 : Brain, 178 : Organs 

 of sense, 179 : Urinogenital organs, 

 180 : Development, 182 : EthoWv and 

 distribution, 187 

 Elastin, 151* 

 Electric Cat-fish, 233 

 Electric Eel, 233 

 Electric lobe, 176, 179 

 Electric organs, 176, 233 

 Electric rays, 170, 177, 179 

 Elephant, African. 540, 567 

 Elephants, 483, 490, 505, 558, 567, 599 

 Eiephas, 483 



Elepha* africannx, 540, 567 

 Elevator muscles, 276 

 Elimination, 654 

 Embryological evidence of evolution, 644 



Embryonal knot, 587* 



Embryonic membranes, of Bird, 440, 



441 



Embryonic rim, 182* 

 Embryonic shield, 363*, 437 

 Empedocles, 675 



Emus, 410, 421, 423, 425, 430, 432, 442 

 Emys europcm, 351, 354, 357 

 Enamel, 85, 86 

 Enamel membrane, 558 

 Enamel organ, 86*, 558 

 Enamel pulp, 559 

 Encephalocoele, 49, 53 

 Endemic, 622* 



Endochondral ossification, 78* 

 End-buds, 106 

 Endolymph, 115* 

 Endolymphatic duct, 115* 

 Endoskeleton See Skeleton 

 Endostyle, of Tornaria, 9 : Ascidia, 

 17, 19 : Appendicnlaria, 24 : Doliohim, 

 27 : of Amphioxus, 46, 48, 62, 63 

 Ascidian larva, 37, 38 

 EngcKus, 622 



Entepicondylar foramen, 528* 

 Enteric canal See Digestive Organs 

 Enterocoele, of Amphioxnt, 9 

 Enteropneusta, 2*, 3, 4, 5, 6, 7, 8, 9 

 Entocuneiform, 458 See Limb-skeleton 

 Entoplastron, 346* 

 Eocene, 640 

 Eotherium, 640 

 Eozoon canademe, 638 

 Epencephalon, 100 

 Ependyme, 102* 



Epi-branchial, of Craniata, 77, 78* 

 Epiboly, 136*, 216, 290 

 Epicentrals, 229* 

 Epiccele, 100, 179 



Epicoracoid, 272 : Prototheria, 520 

 Epicrium, 293 



Epidermis, of Amphioxu*, 46 : Crani l a, 

 69 



Epididymis, 165, 332, 474 



Epigastric vein, 326 



Epiglottis, of Rabbit, 460 : Mammalia, 

 576 



Epiglottis, intra-narial, 576 



Epigonichthys, 44 



Epi-hyal, of Craniata, 77, 78*, 207 



Epineurals, 229* 



Xpi-otic, of Craniata, 79*, 80 



Kpipharyngeal groove, Amphioxus, 48 



Epiphyses, of Craniata, 84* : Rabbit. 

 447 : Mammals, 510 



Epiphysis, (cerebri), of Craniata, 102* 



Epiplastron, 347* 



Epipleurals, 229* 



Epipterygoid, 318, 319, 347 



Epi -pubic bones, 521*, 524 



Epipubic process, 176 



Epi-pubis, 304, 322: Birds, 432 



