424 



INDEX. 



Duct, Stenson's, 77. 



" urogenital, 126. 

 pronephric, 117. 



" Wolffian, 119, 126. 



" of Wirsung, 40. 

 Ductus Botallii, 187. 

 Ductus choledochus, 41. 

 Ductus Cuvierii, 183. 

 Ductus endolymphaticus, 70. 

 Dugong, 405. 

 Duodenal artery, 190. 

 Duodeno-hepatic omentum, 



105. 



Duodenum, 35. 

 Duplicidentata, 391. 

 Dura mater, 57. 



Eagle, 348. 



Eared seal, 413. 



Ears, 69. 



Ear stones, 71. 



Echidna, 377. 



Echidnidae, 377. 



Echineis, 264. 



Ectethmoid, 244. 



Ectoderm, 6. 



Ectodermal structures, 43.. 



Edaphodon, 242. 



Edentata, 381. 



Educabilia, 361. 



Eel, Congo, 285. 



Eel, mud, 285. 



Eel pouts, 261. 



Eels, 256. 



Efferent nerves, 47. 



Egg, 5- 



Egg, development of, 205. 

 Egg tooth, 343. 

 Elapidae, 325. 

 Elaphus, 399. 

 Elaps, 325. 

 Elasmobranchii, 232. 

 Elassoma, 259. 

 Elastic tissue, 14. 

 Elastica exerna, 135. 

 Elastica interna, 134. 

 Electrical organs, 115. 

 Electric eel, 255. 

 Electric skate, 239. 

 Elephant, 401. 

 Elephantidae, 401. 

 Elephas, 401. 

 Elginia, 305. 

 Elotherium, 397. 



