BEAKED WHALES, FAMILY ZIPHIID^ — TRUE. 

 Dimensions of four skeletons of Ziphitis cavirostris. 



47 



Measurements. 



Length of skull., 



First to fourth cervicals (vert. 1-4): 



Length of combined centra 



Greatest breadth of atlas 



Greatest height of atlas 



First thoracic vertebra (vert. 8): 



Greatest breadth 



Greatest height a 



Length of centrum 



Height of centrum 



Seventh thoracic vertebra (vert. 14): 



Greatest breadth 



Greatest height 



Length of centrum 



Height of centrum (ant.) 



Eighth thoracic vertebra (vert. 15): 



Greatest breadth 



Greatest height 



Length of centrum 



Height of centrum 



Ninth thoracic vertebra (vert. IG): 



Greatest breadth 



Greatest height 



Length of centrum 



Height of centrum 



First lumbar vertebra (vert. 17): 



Greatest breadth 



Greatest height 



Length of centrum 



Height of centrum 



Tenth lumbar vertebra (vert. 26): 



Greatest breadth 



Greatest height 



Length of centrum 



Height of centrum 



First caudal vertebra (vert. 27): 



Greatest breadth 



Greatest height , 



Length of centrum , 



Height of centrum , 



Seventh caudal vertebra (vert. 33); 



Greatest breadth , 



Greatest height , 



Length of centrum , 



Height of centrum (ant.) 



a The measurements of height of vertebfEe are from center of inf. 

 spine, unless otherwise specified, 

 b Last thoracic. 

 «: Ninth lumbar. 

 rf Second caudal=vert. 28. 

 e Eighth caudal— vert. 34. 

 / Without chevron facet. 



margin of centrum to center of tip of 



