670 



4159. The sacrum. 



It consists of two anchylosed vertebra. 



4160. The right scapula. 



It shows the great breadth of the supraspinal portion, the upper border of which is rounded. 

 The acromion is bifid : the coracoid is incurved. 



4161. The right humerus. 



The inner condyle is perforated. 



4162. The right radius. 4163. The right ulna. 

 4164. The right os innominatum. 4165. The right femur. 



4166. The right tibia. 



All the long bones of the Marten are more slender than in the Wolverine. 



4167. The skull of the Yellow-throated Marten (Muxtelaflavigula). 



Presented by Colonel Finch. 



4168. The skeleton of a Sable (Mustela zibellina}. 



The vertebral formula is : 7 cervical, 14 dorsal, 6 lumbar, 3 sacral, and 18 caudal. The 

 eleventh dorsal vertebra is that towards which the spines of the other trunk-vertebrae con- 

 verge. The anapophyses begin to be developed upon the ninth dorsal, and are continued to 

 the penultimate lumbar vertebra. The transverse processes of the seventh cervical are not 

 perforated. Ten pairs of ribs directly join the sternum, which consists of nine bones, with a 

 xiphoid cartilage. The supraspinal plate of the scapula is deeper or broader than the lower 

 one, and its border is very convex : the inner condyle of the humerus is perforated : the os 

 penis is preserved in this skeleton. 



Hunterian. 



4169. The skull of the Sable (Mustela zibellina). 



It differs little from that of the Marten, except in its superior size, somewhat stronger and 

 more arched zygomata, and better-developed parietal and occipital cristae. 



Presented by Sir John Richardson, M.D., F.R.S, 



