384 VERTEBRATE ANIMALS OF THE UNITED STATES 



Viviparous. Bringing forth the young alive. 



Vomer bones. The membrane bones forming the roof of the anterior portion of the mouth 



Weberian ossicles. A series of small bones connecting the air-bladder with the ear in 



certain fishes. 

 Ypsiloid cartilage. A Y-shaped cartilage which projects forward from the pubis in certain 



salamanders. 

 Zygomatic bone. The cheek bone. 



