BUFFALO SOCIETY OF NATURAL SCIENCES 47 



but bear an ornamentation of fine stellate tubercles very similar to 

 those of Dinichthys pustulosus. 



We may now record that Dinichthys newberryi occurs in the Cono- 

 dont bed, at Eighteen Mile Creek, where it is found associated with 

 the remains of four or five other species of Dinichthys. The remains 

 represented in the Buffalo museum consist of mandibles, upper dental 

 plates, and various more or less fragmentary elements of the head and 

 body armor. 



As to the species in which these mandibles belong, there can be no 

 doubt, since they show the elongated beak characteristic of this 

 species. 



Fig. 14. Dinichthys newberryi Clarke. Mounted Restoration of the 

 Dentition. X 5 



The antero-superognathals, or front upper teeth, range from very 

 small specimens only 31 mm. in height, to large ones equalling those 

 of D. intermedins, and which probably represent full-grown individ- 

 uals. Our reference of these elements to Dinichthys newberryi is 

 based on the fact that the worn area on the inner face is unusually long 

 and narrow, thus proving it to have been caused by an elongated man- 

 dibular beak of the kind present only in D. newberryi. 



The ventral plates and the antero-dorsolateral described below, are 

 only doubtfully referred to this species. Our main reason for so 

 referring them is that they bear an ornamentation of fine tubercles 

 somewhat like those seen on the fragmentary plate belonging to the 

 type specimen of D. newberryi. 



