XXV] PRIMATES Til 



section have a broad internasal septum and three pairs of premolar 

 teeth. The tympanic bone is without a tube-like prolongation. 

 The HAPALIDAE or Marmosets are small, furry animals inhabiting 

 the forests of Brazil and Columbia; they have the least ape-like 

 feet of any of the Anthropoidea. The great toe is small and it 



FIG. 3GO. The Orang-utan, Simia satyrus, sitting in its nest. From a specimen 

 in the Cambridge Museum. 



alone has a flat nail; all the other toes and all the fingers bear 

 curved claws. There are only two pairs of molars. The CEBIDAE 

 have flat or slightly curved nails on their fingers and toes and 

 three pairs of molars, making with the premolars six cheek-teeth 



