CHAP. Ill] THE MAMMALIAN ORDER PRIMATES 



55 



Fig. 27. An adult male Nasalis or Proboscis monkey; a variety of Semno- 

 pithecus (Cercopithecidae) from Borneo. (Hose Donation, No. n. Mus.^Anat. 

 Cant.) 



Fronto- squamous 

 articulation 



, Lacrymo-ethmoidal 

 articulation 



Fig. 28. Cranium, with mandible, of a Macacus monkey (Cercopithecidae) ; note 

 the absence of an auditory bulla ; the substitution of fronto-squamous and fronto- 

 maxillary for spheno-parietal and lachrymo-ethmoidal articulations: note also the 

 number of teeth, and compare with Figs. 21 and 26. 



