HENRICOFILHOLIA 133 



H. lustrata Amegh., 1901, Bol. Acad. Cienc. Cordoba, t. 

 1 6, p. 405. 



This species is smaller than the preceding, and is based 

 on an upper molar 1 and a last lower molar. The measure- 

 ments are as follows: 



Upper molar i, length 25 mm., width 25 mm. 



Lower molar 3, length 25 mm., width 12 mm. 



Fig. 91. H, inaequilatera, upper molars 3 and 4 — natural 

 size, after Ameghino. 



H. inaequilatera Amegh. loc. cit. above. 



This species is larger than the preceding with the in- 

 ternal cingulum more developed. Upper molar 2 measures 

 30 mm. long by 29 mm. wide. 



H. circumdata Amegh., loc. cit. above. 



This is a still larger type, with the internal cingulum 

 enormously developed. Upper molar 1 measures 42 mm. 

 long by 36 mm. wide. 



