516 



Mr. C. Forster-Ooopcr on new 



The structure of the premolars forms a clearly distin- 

 guishing feature. They are remarkable for a curious orna- 

 mentation in the pulling out of their edges into a number of 

 pointed styles in a manner best explained by the figure 

 (tig. 2), which shows the inner sides of the four premolars. 

 The molars do not show this feature, but are very hypsodont 

 and selenodont. 



Fkr. 2. 



The jaw measures 40 cm. in length and 5' 7 cm. at its 

 greatest depth. 



Brachyodus pilgrimi, sp. n. 



The type-specimen consists of a third upper molar of the 

 right side, with sockets of the first and second molars and 

 part of the maxillary bone as high as the lower border of the 

 orbit. The tooth only is drawn in the figure (fig. 3). This 

 form closely approaches B. giganteus in tooth-pattern, but is 

 larger and considerably wider in proportion to its length, the 

 measurements being over 5*3 cm. for the breadth (the outer 

 part of the parastyle is broken away, or the breadth would be 

 a little more) and 4*1 for the length. The tooth is very 



