286 



DR. C. F. S0NNTAG ON THE ANATOMY 



organ is "7 cm. long, and has 5 laminae and 6 sulci. None of 

 them reach near the Valiums of the lateral vallate papilla). False 

 folds of mucosa (a) may be present. The laminae are flat on 

 plan (G). 



Text-figure 18. 



W^Mi'M 



-nrr 



F. 



The tongue of Cercopithecus burnetii. 



The Frenal Lamella (text-fig. 18 B). 



The triangular lamella has an entire apex, and its edges are 

 devoid of tubercles and processes. 



The inferior surface is otherwise similar to that of C. preussi. 



When the dorsum is examined by the naked eye it has a finely 

 nodulated surface as in C. preussi, and the lens reveals how the 

 interpapillary dorsum forms zones round the conical papillae 

 (text-fig. 18 C). 



