370 



INDEX 



V;)lvula parodoxica, 278. 



Vas afferens, 203. 



Vas deferens, 205. 



Vasa efferentia, 115, 204, 215. 



Veins, 265, 272-277 ; anterior abdom- 

 inal vein, 73, 276. 



Vena cava, 265, 274. 



Vent, 74. 



Ventricle of heart, 73, 264, 279. 



Ventricles of brain, 103, 291, 293, 

 294. 



Vertebrae, 116, 237. 



Vertebral plate, no. 



Vesicula seminalis, see Seminal ves- 

 icle. 



Visual green, 329; purple, 329. 



Vitelline membrane, 85, 89. 



Vitreous humor, 326. 



Vocal cords, 167; sacs, 69, 167. 



Voice, 31, 165, 302. 



Vomer, 232. 



Vomerine teeth, 69, 232. 



White matter of cord, 287. 

 Wolffian body, 113; duct, 115. 

 Wood frog, 20, 354 ; see also Rana 

 sylvatica. 



Xantholeucophores, 188. 

 Xanthophores, 188. 

 Xiphisternum, 239. 



Yolk, 86. 

 Yolk plug, 95. 



Zaitha, 39, 

 Zygapophyses, 237. 

 Zymogen, 151. 



