ART. 13 ANATOMY OF CHINESE FINLESS PORPOISE HOWELX. 



11 



skeletons. In addition, most of the epiphyses, both anterior and 

 posterior, of numbers 239990 and 240003 have been separated in 

 cleaning and the vertebral measurements of these specimens are 

 consequently worthless for comparison. 



Body and apendageous measurements {in millimeters) of the skeleton 



' Detail imperfect. 



Cervical vertebrae. — The first three cervical vertebrae of Neonieris 

 are completely fused and the remaining four are free, though exceed- 

 ingly thin. The measurement of length of the cervical vertebrae 

 was taken from the inferior notch of the atlas to the posterior 

 epiphysis of the seventh vertebra. It represents only about four and 

 one-half per cent of the total vertebral length. The atlantic com- 

 plex is exceedingly variable in a variety of ways. The transverse 

 processes of the atlas and axis show great differences in development 

 and conformation, but not much in total width. Another detail 

 exhibiting much variation is the precise position of the dorsal lamina 

 of the atlas with respect to the remainder of tliis complex, for in 

 some specimens it is situated much more craniad, relatively, than in 

 others. The inclination of the transverse processes of the seventh 

 vertebra, as well as the greater total width at this point as compared 



