744 



DR. C. F, SONNTAG ON THE COMPARATIVE ANATOMY 



The papillee may be concealed by the long conical papillae on 

 the base of the tongue (text-fig. 67 C), or there may be a clear 

 zone between them (text-fig. 67 D). 



The fungiform papillae, which are small and numerous, str(jtch 

 right across the dorsum, but have the usual aiu-angement in 

 clusters and rows. The transverse ridges extend far forwai'ds at 

 the expense of the apical cluster. On the ventral papillary zone 

 they are scanty and only form a single row. 



Text-figure 67. 



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c. 





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The vallate papillae of the Leuiuvoidea : A-D. Xieimir fiihms ; E. L. riijifrons ; 

 P-H. i. macaco ; I. i. mongos ; Ja-Jc. plan and elevation of papillae of 

 i. ruhriventer ; Jd. fungiform papillae of Lemur. 



The conical papillae (text-fig. 68 A) have the usual arrange- 

 ments in clusters and rows, and their points run in the usual 

 ■directions. Those on the oral part of the dorsum are small, but 

 those on the pharyngeal part are big and cjdindrical or scale-like. 

 These two groups are separated by a line of demarcation concave 

 forwards, lying a little in front of the vallate papillary area. The 

 points of the basal papillaj are straight or recurved. This 

 arrangement is also present in Hapcdemur, according to Beddard 

 (1), and Chiromys, but is absent in Microcebus, the Lorisidai;, 

 Galagidas, and Tcm'sius, 



The lateral organs (text-fig. 68 B-E) consist of laminae and 

 sulci on the dorsum alone {L. inacaco) or on the lateral borders 

 and inferior surface. The central laminae are larger than the 

 lateral ones, and the inner border of each organ is convex towards 



