326 



SIK BAY LAIS'KESTEE ON THE 



[Apr. 



The inferior transverse process is to be regarded as a bifurcation 

 of (or an accessory inferior plate of) the one transverse process 

 which is usually recognised (in the cervical region) as the superior 

 transverse process. On the present occasion it is not convenient 

 to discuss f urthei' its morphology. 



Text-fig. 64. 



OKAPI- 



rerv-/. 



in.z.p.\ f\ 



POSTERIOR FACE. 



ANTLRIOR FACE 



The posterior face of the seventh cervical vertebra and the anterior face of the 

 first dorsal vertebra of the Okapi {OJcapia johnstoni), to show the duplicated 

 character of the articular facets. 



m.z.f., posterior median articular facet of Cerv. 7 ; m.z.a., anterior median articular 

 facet of Dors. 1, which articulates with the foregoing ; l.s.p., posterior lateral 

 articular facet of Cerv. 7, raised on a distinct zygapophysis ; l.s.a., anterior 

 lateral articular facet also raised on a zygapophysis, seen fully in Dors. 1 (and 

 partially in Cerv. 7) ; l.z.a. of Dors. 1 articulates with l.z.p. of Cerv. 7 ; 

 ts., superior transverse process. 



There are a number of interesting details to be observed and 

 discussed in regard to these minor processes of the vertebrae in 

 different groups of mammals. My purpose is not now to enter on 

 that subject, but merely to show briefly what is the value of the 



