464 



INDEX 



(Amphioxus, pages 1-61; frog, 62-238; 



medullary furrow, 269; tube, 



270, 278. See also, neural. 



membrana granulosa, 71 : 237, 239 : 

 375, 376 



membrane, anal, 414, 415 ; 



cloacal, 297: 414 ff., 415; 



embryonic, 286 ff., 287, 288, 289, 

 290, 295: 417 ff.; - - of egg, 4, 5, 

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

 373, 374, 376, 380, 382 ; - - of 

 egg, functions of, 82 ; of egg, 

 swelling of, 81; oral, 132, 158, 

 159, 164: 261, 262, 269, 276, 282, 

 394, 327: 412, 412; - - peri- 



vitelline, 5, 9; pleuro-perito- 



neal, 352; shell, 233, 234, 241 ; 



tympanic, 152, 213: 325; 



urinogenital, 414 ff.: 415; 



vitelline, 4, 5, 8: 69: 232, 233, 245, 

 247,287:374 



menstruation, 379, 421 



meridian, fertilization, 79, 84 



mesencephalon, 129, 131, 132, 133: 

 262, 270, 271, 283, 303, 304, 305, 

 307 



mesenchyme, 138, 139, 140, 141, 171, 

 172: 264, 309, 353 



mesenteron, 25, 29: 118, 122 ff.: 

 334 #. 



mesentery, dorsal and ventral, 174, 

 204, 204 : 335, 351 



mesocardium, dorsal and ventral, 



175, 176, 192: 272, 274; 



lateral, 344, 350 ff ., 351 



mesoderm, 21, 24, 25, 29 ff. : 99, 102, 

 107, ff., 123, 137, 170, 194: 252, 

 253 ff., 254, 256, 262 ff., 263, 272, 

 278, 294: 395, 396, 398, 399, 402; 



bands, 24; ccelomic, 255, 



256 ; folds, 21, 24; - formation 

 in frog compared with Amphioxus, 



114 ff.: gastral, 24,26: 114- 



115: 259, 262; lateral plate of, 



31: 123-124, 170, 171, 194: 263, 

 278; - - peristomial, 26: 114- 



115: 259, 262; somatic and 



splanchnic, 31: 124, 124, 170: 256, 

 265, 266-267, 272, 277 ; yolk- 

 sac, 425, 432 



mesogastrium, 335 



mesohepaticum, 187, 192 



mesonephros, 193, 198 jf., 199, 200: 

 335, 348, 355, 356 ff., 357, 359; 



disappearance of, 358; 



duct of, 199, 199, 202^.: 265, 294, 

 355 ff., 357, 358, 359, 360; - 

 tubules of, primary, secondary, 

 tertiary, 294, 356-357, 357, 359, 

 362; - -units, 198 #., 199, 200; 

 vestiges of, 360 



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



mesorchium, 202, 205 : 363 



mesovarium, 71, 202, 205: 235, 236, 

 361: 371, 372 



metagastrula, 383 



metamerism, 265 



metamorphosis of tadpole, 67-68 



metanephrogenous tissue, 359 



metanephros, 355, 358 ff.; duct 



of, 359, 359 ; tubules of, 358- 



359, 359 



metapleural folds, 40, 47, 47, 48 



Metatheria, gestation, 419; ova, 

 418-419 



metencephalon, 129, 132, 133 : 283, 

 303, 304, 307 



micropyle, 9: 79: 374 



mid-brain, 129, 131, 132, 133: 262, 

 270, 271, 276, 283, 303, 304, 305, 

 307; gut, 167, 169: 327, 334 



Minot, 422 



mole, amnion cavity, 293; amnion 

 folds, 428; germ layers, 396; noto- 

 chordal canal, 397, 398; primitive 

 streak, 396 ; yolk-sac, 433 



Monodelphia, embryonic mem- 

 branes, 419 ff. 



Monotremata, ova, 418; placenta- 

 tion, 439, 440 



Monro, foramina of, 131-132: 306 



mons veneris, 417 



morula, 382, 383 



mouse, amnion folds, 424; blasto- 

 dermic vesicle, 384; chromosomes, 

 377; cleavage, 381; false amnionic 

 cavity, 389; gestation, 369; im- 

 plantation, 421; lutein, 378; ovu- 

 lation, 379; ovum, 373; polar 

 bodies, 377, 378; sperm entrance, 

 380; Trager, 389; trophoblast, 389 



mouth, 34, 35, 40, 42, 44, 47 : 65, 118, 

 122, 128, 158, 166: 269, 304, 327: 

 404, 412, ff., 412 



mucosa, uterine, 443 



Mullerian duct, 202 ff., 203: 335, 

 360-361 



muscle, fibrillse, 172 : 353; of eye- 

 ball, innervation, 315; plate, 



171, 171: 352-353 



musculature, ventral, 53 



Mustelidse, placentation, 440 



myelencephalon, 117, 129, 132, 133, 

 134:283, 285, 303,304,307 



myoco3l, 31, 48, 52 : 124, 125, 170 : 265, 

 295 



myocardium, 266, 272 



myocommata, 172 



myotome, 31, 48, 51, 52: 123, 171, 

 171, 194 : 294, 352-353 



Nares, 154, 155: 325-326 



