OF THE TONGUES OF THE MAMMALIA. 307 



The Lateral Organs (text-fig. 29 B). 



The short, wide sulci, which run forwards and upwards, 

 separate flat, furrowed lamina?. The right organ is 1*4 cm. long, 

 and has 11 laminae and 12 sulci. The left organ is 1*2 cm. long, 

 and has 10 laminae and 11 sulci. 



The apex of the triangular /renal lamella is slightly cleft and 

 rounded. 



I have not observed the row of glandular bodies under the 

 tongue described by John Hunter (16). 



The Stump-tailed Macaque (M. speciosus). 

 Habitat : Burmah. 



Measurements. — Total length 5*8 cm. ; length of the oral part 

 4*7 cm. ; length of the pharyngeal part 1*1 cm. ; greatest width 

 2*6 cm. 



The apex has a mesial notch. The lateral borders have the 

 usual characters, and the structures mentioned on page 278 are 

 absent. 



Text-figure 30. 



mm 



A. 



Tlio vallate papilla and lateral organs of Macaeus speciosus. 



The Circumvallate Papillce (text-fig. 30 A & B). 

 Four vallate papilla? are arranged in the "V-type. Including 

 the posterior papilla, the right limb has three elements, but the 

 left one has only two. The left anterior papilla is round and 

 umbilicated, the fossa is clearly marked, and the vallum is flat 

 and granular. The right anterior papilla is oval, granular, and 

 recessed, the fossa is clearly marked, and the vallum appears as 

 a prominent circular band. The posterior papilla is large and 

 prominent ; it has a central club-shaped papilla, and is surrounded 

 by a lobulated vallum. 



The Fungiform Papilla} (text-fig. 31 A). 

 The fungiform papilla? are neither numerous nor prominent, 

 but they stretch right across the dorsum. They have the usual 

 arrangement in clusters and rows. On the lateral borders and 

 inferior surface they are discrete. They are hemispherical or 

 pedunculated, and none are overlapped by conical papilla?. 



The Conical Papilla? (text-fig. 31 B). 

 Their arrangement and disposition according to size and 

 direction of their points follow the usual plan, and the inter- 

 papillary dorsum appears in the form of strips. There is no 

 great variation in their types. 



