Vertebrae, see also under generic names 



arcualia components, 163 

 arcual blastemas, 149 



articulations, types of, /50 



blastemic origin, 143, 144 



blocks, 150 



body, 141, 147 



chondrification, 148 



comparison of mammal and frog, J57 



evolution in early tetrapods, 154 



ossification, 150 



sclerotomic components, J45 

 Vertebral arteries, 354 

 Vertebral column, 141 

 Vertebral foramen, 141 

 Vertebral ring, 144, 148 

 Vertebral vein, 361, 368 

 Vertebrata, 19 

 VESALIUS, 2 

 Vesicles, nephric, 8 

 Vesicles of Savi, 4 1 8 

 Vesicula seminalis, 333 



Vestibular division of auditory ganglion, 386 

 Vestibular fontanelle, 94, 1 14 

 Vestibular part of otic capsule, 51 

 VICQdAZYR, 2 



Vidian nerve or palatine branch of VII, 48 

 Visceral ganglion, 12 

 Visceral motor component, 386 



Visceral plate, 131 



Visceral sac, 14 



Visceral skeleton, 59, 80, 129 



Vitelline membrane, 193, 194, 198, 199 



Vitelline vein, 339, 368 



anterior and posterior, 372 



converted to artery, 372 

 Vitreous body, 404 

 Viviparous, 2 1 1 

 Vocal cords, 280 

 Vomer, 40, 44, 46, 48, 65, 69, 71, 76, 80, 85, 



105, 111 

 Vomeronasal division of olfactory nerve, 



386, 388, 403 

 VON BAER, 3 



WASSNEZOW, 286 

 WATSON, 3, 91, 177,343 

 Watsonulus, 20, 33, 116 

 Weasel, 291 



Webberian ossicles, 410 

 WEISMANN, 3 

 WEISEL, 329 



WESTOLL, 3, 94, 117, 182, 186 

 Whales, 166, 171,403 

 Wheel organ, 5, 197 

 WIEDERSCHEIM, 3 



Williamson's canals (lepidosleid tubules), 

 233, 234, 236 



Wombat, \4l,348 



Wolffian duct, see nephric duct 



Xiwjpm (clawed toad), 153, 406, 407, 408 

 Xiphisternum, 191 



YARREL, 5 



Yolk-sac circulation, reversal of flow, 374 



Yolk-stalk shunt, 374 



iourigma, 176 



Zeugopodium, 172 



Zona annularis, 53 



Zone of glomerulae, 297 



Zone of junction, 201, 207 



Zona [jellucida (see also chorion), 193 



Zona radiata, 193 



^^■gama, 21 \, 274, 334 



Zygantrum, 146 



Zygapophysis, 141 



pre and post, 142, 145, 146, 147, 152, 153 

 Zygomatic arch, 46 

 Zygomatic process 



of maxilla, 46 



of squamosal, 46 

 Zygomaticus bone, 36 

 Zygosphene, 146 



478 



INDEX 



