294 



DR. C. F. SONNTAG ON THE ANATOMY 



'1 cm. ; width between the lingual attachments of the palato- 

 glossal folds 2 cm. 



The apex has a mesial notch, and it and the lateral borders are 

 covered with fungiform papillae which are more numerous and 

 prominent than in the species alreadj' described. The structures 

 mentioned on page 278 are absent. 



The CircumvaUate Pa^nllce (text-fig. 23 E & F). 



Four vallate papillae are arranged in two pairs — anterior and 



posterior. The former correspond to the lateral papillae of the 



triangular type, and the latter occupy the position of the posterior 



papilla. The posterior papillse are close together (text-fig. 23 E). 



Text-figure 23. 



/\mr2r\ a Q ^r^ 



The tongue of Cerco-pithecus sahceus. 



The anterior papillae are surrounded by clear, smooth Valiums. 

 The posterior Valiums are similar to the anterior ones, or are very, 

 prominent and crowded with conical papillae (text-fig. 23 F). 



The vallate area contains many conical and a few fungiform 

 papillae. The former vary greatly in size, and they were very 

 large in a young specimen which I examined. 



The papillae vary greatly in their degree of projection (text' 

 fig. 23 E), 



