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DR. C. F. SONNTAG ON THE ANATOMY 



The Fungiform Papillce (text-fig. 19 A & F, f.p.). 

 On the middle of the oral part of the dorsum the papillae are 

 small, but those on the lateral parts are large and prominent. 

 The apical cluster contains many large ones. They are hemi- 

 spherical or umbilicated, and none are overlapped by conical 

 papillae. 



Text-figure 20. 



C. mona. 



C. mona. 



C. albiqulsris. 



C. schmidti 



C. lalandii C.patas. 



The frenal lamellse of the Cevcopitheques. 



The Conical Papillce. 

 The conical papillae have the usual arrangement, but the 

 posterior rows of the oral part of the dorsum are less oblique 

 than in most species of Oercopithecus. They are surrounded by 

 zones of in terpapillary dorsum (text-fig. 19 B). They also have 

 the usual distribution according to size, and the points run in 



