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glenoid cavity, the inflection of the angle of the lower jaw, the superior number of premolars 

 and upper incisors, the Leporidae, as compared with other Rodents, offer the nearest approach 

 to the Marsupial Order. 



Hunterian. 



The following bones are parts of the same skeleton of the Lepus timidut. 



Hunterian. 



1917. The atlas vertebra. 



The transverse processes are perforated longitudinally by the vertebral arteries, which then 

 perforate the neural arch. The hypapophysis, or so-called body, is ossified, and a small 

 tubercle extends backwards from its under part. 



1918. The penultimate lumbar vertebra. 



The metapophyses, the anapophysial and hypapophysial ridges, are here shown. 



1919. The right scapula. 



The articular cavity for the humerus is broadest transversely. 



1920. The right humerus. 



In this may be noticed the intercondyloid perforation, and the entry of the medullary 

 artery on the inner side of the distal third of the bone : the canal extends downwards. 



1921. The right radius. 



1922. The right ulna. 



It is very slender, and is grooved anteriorly for the reception of the radius. 







1923. The sacrum. 



It here consists of four vertebrae by the anchylosis of the first caudal to the usual three 

 confluent vertebrae. The neural spine of each projects distinctly, with a vacuity in the inter- 

 space leading to the neural canal. 



1924. The right os innominatum. 



The ischium sends a short and slightly curved process outwards above or anterior to the 

 tuberosity. 



2z 



