88 THE LOWER PRIMATES 



it walk and then its gait is ineffective and ungainly. Insects, especially grass- 

 hoppers, are the main staple of its food supply, but it is also partial to milk 

 and drinks water. 



Cour/esv. American Museum oj Natural History 



FIGS. 41 AND 42. HAND AND FOOT OF TARSIUS SPECTRUM. 



Left. Palmar surface of hand showing rudimentary development of the palm, palmar pads, pronounced 



digitation, disc-like specialization on the distal phalanx of each finger. 

 Right. Plantar surface of foot showing rudimentary sole and heel, long hallux partially opposable, and 

 disc -like specialization on the end of each toe. 



Tarsius performs its toilet much as a cat does. When it comes to the hind 

 legs it grasps one and then the other with its hands, and thus keeps itself 

 scrupulously clean. It is not known to make vocal sounds indicative of fear 

 or anger, and only on rare occasions has it been heard to squeak, most 

 particularly when young. It is probably not the case that the mother carries 

 her offspring with her teeth in the manner of a cat. This act Clark has never 

 observed. As with many other primates, the infant tarsius grasps and clings 



