96 THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 



MEOAPTERA OSPHYIA COPE. (TYPE.) LENGTH OF CENTRA. OF VERTEBRAE. 



The antero-posterior length of a pair of epiphyses, with the dried cartilage 

 between, is 1^ inches. 



The transverse process of the atlas is 6 in. deep, 4 in. long. In the other 

 cervical vertebrae from the third to the seventh inclusive, the length of the pro- 

 cesses is as follows : 



MEOAPTERA OSPHYIA COPE. (TYPE.) LENGTH OF PROCESSES OF CERVICAL VERTEBRA. 



Processes. 



The lateral processes of the axis are long, but do not meet at the distal ends. 

 The inferior processes are as long as those of the third cervical. The vertical 

 diameter of the fifth cervical is 8 1 in. 



The height of the neural arch and spine of the first dorsal vertebra is 8 1 in. ; 

 of the seventh dorsal, 13 in. The depth of the centrum in the latter vertebra is 8| in. 



The height of the neural arch and spine of the first ten lumbars, measured from 

 the top of the centra posteriorly, is as follows : 



MEOAPTERA OSPHYIA COPE. (TYPE.) HEIGHT OF NEURAL ARCH AND SPINE OF LUMBAR VERTEBRA. 



