BUFFALO SOCIETY OF NATURAL SCIENCES 111 



E 1921 A very small lower dental plate. Despite its small size, 

 it shows all the characters of the species — beak, cutting 

 margin, narrow tritor and compressed edge behind 

 tritor. Total length, 15 mm. 



E 1922-3 (i) A right lower dental plate, lacking only the tip of the 

 beak; (2) the front half of a left dental plate. 



E 1924 Imperfect left lower dental plate. 



E 1925 Minute right lower dental plate. 



E 1931 Imperfect lower dental plate, in limestone. 



E 2404 A right lower dental plate showing well-preserved oral 

 margin (PI. 37, fig. 1,1). 



E 2406 Two rather smaU upper dental plates. One of them, of the 

 right side, is figured (PL 37, fig. i). 



E 2407 A rather large, worn lower dental plate, lacking the hinder 

 third. 



E 2408 Two left lower dental plates (PI. 37, figs. 10 and 13). The 

 larger and better preserved one of the two (fig. 10), is the 

 next largest element to No. E 191 2 in the collection. It 

 shows well the spiniferous process, below the symphy- 

 seal region both in outer and inner view. Length 58 

 mm. (including 3 mm. allowed for missing posterior 

 extremity). Height at beak, 15; max. width of tritor, 

 5. The tritor shows the rows of punctse, although they 

 are a good deal worn and in the front half of the tritor are 

 completely obliterated. 



E 2410 Right lower dental plate (PI. 36, fig. 4). The tritor is ve'-y 

 narrow and the cutting edge in front of it is but little 

 developed. The beak is sharply pointed. The ridge 

 behind the tritor is well shown. 



E 2411 Eight small dental plates, three of them amopg the smallest 

 ever collected. The smallest is only 11 mm. in length; 

 another, lacking the posterior end, is 14 mm. in length, 

 when complete must have been about 18 mm. 



