CAN IS UKOSTICTUS. 83 



the end of the tail and in the region of the black dorsal stripe the 

 hairs of the tail are black towards their tips. Thus the general colour 

 of the tail is grey. It is blackish towards its apex, and very black at 

 the dorsal stripe before mentioned, as shown in our Plate. 

 Habitat. Brazil. 



Centimeters. 



Length from snout to root of tail 67o 



„ of tail 22;0^ 



„ from heel to end of longest digit 130 



of ear 5-2 



Cranial and Dental Characters. 



The flattened sagittal tract is rather narrow, and ends posteriorly in 

 a short sagittal ridge. 



The upper molars arc very large, but their combined length differs 

 slightly on the two sides, being 1"5 on one side and 1"4 on the other. 



Taking the mean and comparing this with the fourth upper premolar 

 the relative length of the latter to that of the molars is as 100 to 100. 



Centimeters. 



Basion to ovalion .'M 



Ovalion to sphenoideum 29 



Sphenoideum to gnathioa 7'2 



Length of palate 5*0 



Breadth of „ 2"8 



brain-case 4'0 



zygomata 5'8 



Length of Pii 0-3 



„ ^ 0-6 



P^ 0-55 



P. 4 0-9 



M.1 0-8 or 0-85 



» .... 



M.2 0-6 or 0-65 



jj — 



Breadthof?ii 0"5 



Ay 10 



M.2 0-8 



» — 



M 2 





