CLASSIFICATION OF THE SCIURID^. 



221 



8 mm., is longer than the shaft, its blunted point overlapping 

 the thickened proximal end of the shaft, and the upper edge of 

 the blade rises high above the concavity of the bone. In this 

 respect it differs from the baculum of T. vittafus, where the 

 upper edge of the blade does not project above the concavity 

 lying between the apex and base of the shaft. (Text-fig. 21, G.) 



Text-figure 21. 



A. Baculum of Callosciurus castaneoventris, from the left side. 



B. The same of C. prevosti. 



C. The same of C. notatus. 



D. The same of Ifenetes herdmorei. 



E. The same of Tomeutes vittatus, from the left side. 

 P. The same from above. 



G-. The same of T. lokroides, from the left side. 

 H. The same of T. Jiippicrus. 

 I. The same of T. robinsoni, 

 K. The same of T. miniatus. 

 L. The same of T. talian. 



The baculum of a specimen of T. hipjnirus from Bukit Tangga, 

 i^egri Sembilan, also has the blade overlapping the proximal end 

 of the shaft, but not to the same extent as in T. lokroides. The 

 shaft, moreover, is relatively longer, with a longer concavity ; the 

 blade is not so deep and does not pi^oject so high above the con- 

 cavity of the baculum as in 2\ lokroides. In a measure this 



