338 r. Tiickerman, 



shaped cavity or recess, 0,55 mm. in depth and 1 mm. in diameter. 

 The walls uf the recess are not very thick, and are lined with stra- 

 tified epithelium, resembling in the main that of the adjacent lingual 

 smface. From the floor of the recess rise two ridges, which largely 

 fill it. The larger of the two measures 0,40 mm. in diameter and 

 0,45 mm. in height. Serous glands are fairly abundant, and their 

 ducts open into the spaces between the ridges, and also at the sides 

 of the recess towards its deeper part. The ridges bear bulbs over 

 their entire circumference. Bulbs are also very irregularly scattered 

 in the walls of the cavity, and likewise occur in clusters near its 

 mouth. They are small, measuring 0,042 mm in length and 0,024 mm. 

 in breadth. The fungiform papillae appeared to be of the usual mam- 

 malian type, but were destitute of bulbs. The latter were likewise 

 wanting m the epiglottis. 



The Tongue of Dasypus minutus. 



This specimen had been kept in spirits, but was not in a favou- 

 rable condition for minute examination. 



General Description. — The organ is 33 mm. in length, 5,5 mm. 

 in breadth, and is free from the fraenum for 14 mm. The under sm- 

 face has the usual ridge, the upper anterior region being grooved 

 transversely. The tip was somewhat less pointed than in the other 

 Edentata examined. Although the entire tongue was cut into sections, 

 no ch'cumvallate papillae or lateral gustatory organs were found. It 

 is quite probably, however, that they were overlooked. The fungiform 

 papillae were of good size, and contained bulbs. In a single section 

 of one of them I counted no less than six. They measmed on the 

 average 0,039 mm. in length and 0,021 mm. in breadth. Simple and 

 compound filiform papillae were numerous, the former being interspersed 

 among the latter. The epiglottis was not examined. 



The Tongue of Chlamyphorus truncatus. 



I received only the anterior four-fifths of this tongue. The piece 

 measured 36 mm. in length. It had been kept in spirits, and was suf- 

 ficiently firm for cutting. 



