747 



4915. The left femur, longitudinally bisected. 



4916. The left tibia, longitudinally bisected. 



4917. The left fibula, longitudinally bisected. 



4918. The skull of a male Grey Baboon (Macacus Hamadryas). 



The dentition is entire. The left side of the lower jaw has been diseased. 



Hunterian. 



4919. The skeleton of a Macacus, about the size of M. nemestrinus. 



The vertebral formula is : 7 cervical, 1 2 dorsal, 7 lumbar, 3 sacral ; 3 caudal are preserved. 

 The mature dentition is acquired. The back part of the sagittal and the contiguous parts of 

 the lambdoidal sutures are dentated. A styliform process is produced from the lower part of 

 the mast old. 



It differs from Nos. 4827 & 4854 in the larger proportional size of the fifth lobe of the 

 last lower molar tooth. 



Purchased. 



The following, to No. 4989 inclusive, are parts of the same skeleton of a Macacus, about 

 the size of M. Inuus, but with a tail : 



Hunterian. 



4920. The cranium. 



It is transversely bisected across the petrosals, and through a united fracture near the 

 coronal suture. The permanent canines have the crown worn, and the fang decreases to a 

 point, but the last true molar has not cut the gum in either jaw. The third division of the 

 fifth pair of nerves has notched the alisphenoid, and part of it has pierced the base of the 

 ectopterygoid. The eustachian process of the petrosal is short. This skull betrays an un- 

 usual defect of symmetry : the facial part, especially of the right posterior nostril, is smaller 

 than the left. 



4921. The lower jaw. 



The fifth lobe of the last molar is as much developed as in the Macacvs Inuus. 



4922. The atlas. . 



It has a hypapophysial tubercle. The transverse process is perforated lengthwise by the 

 vertebral artery, which afterwards perforates the neural arch. 



5c2 



