INDEX 



459 



(Amphioxus, pages 1-61; frog, 62-228; 



decidua, 439, 443; basalis, 443, 



444, 445, 447, 449, 450; - - capsu- 

 laris, 442 ,443, 444;- - compact 

 layer, 443; - - reflexa, 442, 443; 

 serotina, 443; - - spongy 



chick, 229-367; mammal, 368-454.) 



Ear, 149 ff., 160, 211 ff., 212, 214: 

 321 .#., 322; - internal, 324; 



middle, 152-153: 324; 



layer, 443; 



vera, 443, 444, 450 



deciduata, 439 



"Deckschicht," 130 



deer, cleavage, 381: embryocyst, 

 387: embryonic shield, 387; fer- 

 tilization, 381; gestation, 369; 

 ovum, 373; placentation, 439, 440 



denticulate ligament, 49 



dermal, bones, of skull, 214, 219-220; 

 - fold, 52 



dermatome, 52, 52: 171-172, 171: 

 294, 352-353 



deutoplasm, 4, 5: 69, 74, 75: 230; 

 see also yolk. 



Didelphia, ova, 418-419; embryonic 

 period, 419 



Didelphys, blastodermic vesicle, 388; 

 gestation, 370 



diencephalon, 129, 131, 133: 283, 

 303, 304, 306 ff., 310 



digestive tract, see alimentary canal. 



discus proligerus, 375 



diverticulum, gut, anterior, 25, 32-33, 

 32,35;- -Meckel's, 434 



dog, cleavage, 381: embryo, 394; 

 embryonic shield, 393, 394 ; for- 

 mation of embryo, 393 ff.; gesta- 

 tion, 369; oogenesis, 375; ovary, 

 375; ovulation, 379; ovum, 373; 

 trophoblast, 388, 388 



dorsal aorta, see aorta 



dorsal, ccelomic canal, 49; 

 thickening (brain), 129, 131 



duct, bile, 167: 333; - - cochlear, 

 323;- -mesonephric (Wolffian), 

 199, 199, 202 ff.; 265; 294, 355 ff., 

 357, 358, 359, 360; - meta- 



nephric, 359, 359 ; Mullerian, 202 jf., 

 203:335,360-361;- -pancreatic, 

 168; - - pronephric (segmental), 

 193 ff., 194, 195, 196, 198; - 

 reproductive, 202 ff.; 360 /., - 

 thoracic, 191: 349; urino- 



genital, 202 ff. 



ductus, arteriosus, 341, 348; - 

 Botalli, 185: 342; chole- 



dochus, 167: 333; - - Cuvieri, 

 185 ff., 192: 283, 285, 291, 310, 

 329, 337, 344, 345, 351; 

 endolymphaticus, 150, 151: 322, 

 322 ; - - venosus, 285, 291, 304, 

 333, 337, 344, 345, 348 



dugong, placentation, 440 



duodenal loop, 168 



duodenum, 335, 336 



outer, 324; see also auditory. 



Echidna, ovum, 418 



ectoderm, 15, 16: 98 ff., 98, 100: 

 247, 249 jf., 249, 253, 280: 385 ff., 

 386, 391, 395 ff. 



egg, see ovum; - - membranes, 4, 

 5, 8, 9, 10: 69, 80, 81, 82: 233, 234: 

 373, 374, 376, 380, 382; 

 membranes, functions, 82; 

 tooth, 328 



"egg," of fowl, 231 ff., 233,242 



elephant, gestation, 369; placenta- 

 tion, 440 



Elliot, 172, 173 



embryo, axis of, 243; - - formation 

 of, 251 ff., 252, 256 ff., 258, 260: 

 384 ff.; position in "egg," 

 243, 299; see also human. 



embryocyst, 387, 392 



embryonic, membranes, 286.$'., 287, 

 288, 289: 417 ff., 425, 428, 430; 

 see also amnion, chorionetc.; - 



comparison of mammalian, 

 and sauropsidan, 417; - 

 functions, 290, 295: 417-418; - 

 shield, 387, 388, 392, 393 ff., 

 394 



embryotrophe, 441, 442 



enamel organ, 220: 328 



endocardia! septum, 266 



endoderm, 15, 16 : 98, 100, 102 : 247, 

 249 ff., 249, 253, 267 ff.; 385, 386, 

 390, 391, 391, 392, 395, 396; - 

 yolk-sac, 256, 272, 277, 289-290: 

 390, 391, 425, 431 



endolymphatic, duct, 150, 151: 322, 

 322;- - sac, 152: 323 



endostyle, 34, 35, 40, 42, 43 



endothelial cushion, 338 



endothelium, 175-176, 175, 178, 187 : 

 256, 272, 274 



enteroccel, 21, 24, 26, 29, 30 



enteroccelic grooves, 110, 110, 114 



enteroderm, 121, 122 



enteron, 25, 29, 33 ff.: 122-123, 158 

 ff.: 326 ff. 



entoderm, see endoderm. 



entypy, 387, 389 



ependyma, 37 



ependymal cells, 134: 308 



epiblast, see ectoderm. 



epiboly, 15 jf.: 98, 99:251 



epicoracoid, 221 



epididymis, 362, 363 



epipharyngeal groove, 44 



epiphysis, 118, 118, 130, 131, 133: 

 285, 304, 305, 307 



