INDEX 



465 



(Amphioxus, pages 1-61; frog, 62-228; chick, 229-367; mammal, 368-454.) 



nasal septum, 413, 413 

 nephridia, 40, 53, 54 

 nephridium of Hatschek,35, 42, 45, 46 

 nephrostome, mesonephric, 201: 358; 



metanephric, 359; pro- 



nephric, 194, 195, 195, 196, 198; 



common, 197, 199 



nephrotome, 173, 193: 265, 265, 355, 



356 

 nerve, branchiomeric, 135; 



cranial, 135, 136 ff.: 313, ff.; 



abducent (vi), 142: 315; 



auditory (viii), 140, 157 : 



314; facial (vii), 140, 



141: 315; glosso- 



pharyngeal (ix), 141: 314, 329; 



hypoglossus (xii), 313; 



lateral line, 142, 156, 



157; oculomotor (iii), 



142: 315; olfactory (i), 



316, 326; optic (ii), 316, 



320; pneumogastric (x), 



141: 314, 329; - spinal 



accessory (xi), 314, 329 ; 



trigeminal (v), 138, 140: 285, 315; 



trochlear (iv), 142: 315; 



vagus (x), 141: 314, 



329; vagus, visceral 



branch, 142; spinal, 135, 142- 



143, 173: 311 ff., 312; - 



axons of , 311; roots of, 



142, 143: 311, 312; 



table of arrangement, 173 

 nervous system, central, 20-23, 21, 

 27-28, 37-39, 38: 116 ff., 128 ff.: 

 269 ff., 302 ff., 302; - 

 peripheral, 135 ff.; 311 ff.; 



sympathetic, 143-144, 143: 



312-313, 313 



"nests," of ovarian cells, 205, 206: 

 237 363' 374 



neural, crest, 119, 124, 136, 137, 139, 



142, 194: 265, 270, 309; folds 



(ridges), 16, 21, 22, 23: 261, 266, 



268, 269, 270, 278: 398; folds, 



lateral, 65, 111, 117, 120; 



folds, transverse, 65, 99, 111, 117; 



groove, 65, 111, 117, 120: 



263, 269: 401; plate, 21, 22: 



65, 110-111, 110, 117, 124: 269, 



270, 278; sheath, 52; 



tube, 21, 27: 270, 274, 278: 398 



neurenteric canal, 16, 21, 25, 28: 118, 

 119, 120: 259: 397, 398, 400 ,401 



neuroblasts, 135: 308 



neurocoel, 21, 27 



neuro-epithelium, 326 



neuromeres, 128: 271, 302-303, 302 



neuropore, 22,25, 32, 35, 38 : 118, 128: 

 270 



node, Hensen's, 252, 253, 257, 260 : 



394, 395, 396 

 non-deciduata, 439 

 notch, marginal, 258 

 notochord, 16, 21, 23, 25, 28-29: 121 



ff., 208-210, 213: 260, 262, 264, 



265, 266, 268, 268, 278, 304: 398, 



402 

 notochordal, canal, 397-398, 397; 



sheath, 52:208, 208 

 notogenesis, 99 ff., 98, 106, 112 ff. 

 nuclei, of periblast, 246-247 

 nucleus, of Pander, 243, 247; 



volk, 74, 75:376 

 Nussbaum, 205 



Occipital condyles, 215 



oesophagus, 159, 166, 168, 169: 304, 

 329, 332, 335 



osstrus, 378; relation to ovula- 



tion, 379 



olfactory, capsule, 210, 211, 212, 214, 



215; epithelium, 326; - 



groove, 154 ; lobes, 129: 305 ; 



organ, 145, 153 ff., 154: 325 



ff.; pit, 38, 38: 153, 154, 160: 



325 : 407, 412, 412 ; placode, 



131, 153, 154; process, 412, 



412 ; recess, 129 



omosternum, 221 



oocytes, 74, 75 : 237, 238 



oogenesis, 7: 73 ff., 75: 237, 238: 

 374 ff. 



oogonia, 7: 237, 363 



opercular cavity, 161, 163 



operculum, 67, 161, 163, 180; 



(auditory), 153, 213 



optic, chiasma, 129, 131, 133, 148: 



305, 306; cup, 145, 146, 147, 



148: 316 ff., 317, 318 ; lobes, 



129, 132: 307; recess, 130, 



133, 148: 262, 303, 304, 305, 306; 



stalks, 129, 144, 145, 147, 



148, 160: 303, 316, 317, 318, 320; 



thalami, 129, 148: 307, 320; 



vesicles^ 144, 145, 147 : 266, 



271, 274, 276, 282, 283, 316 ff., 

 317, 318, 329 ; vesicle, ante- 

 rior chamber, 317, 321; 



posterior chamber, 146, 147: 310, 

 317, 318 



opossum, blast odermic vesicle, 388; 

 gestation, 370 



oral, cirri, 44, 45 ; hood, 42, 44, 



45; membrane (plate), 132, 



158, 159, 164: 261, 262, 269, 276, 

 282, 304, 327: 412, 412; - 



sinus, 404, 412 ; sucker, 66, 



66, 120, 164, 180 



or a serrata, 319 



