464 Annals of the Carnegie Museum. 



The enamel is more nearly smooth, but is finely wrinkled, and the 

 outer median conule is smaller. The tooth of Faheomeryx has the 

 appearance of belonging to a larger, heavier animal with more primi- 

 tive teeth. 



No. 2263 (Carn. Mus. Cat. Vert. Foss.) is part of a maxillary with 

 the last premolar and the three molars complete (Plate LXIII, Figs. 

 4 and 5). This is also labelled " FalcBot)ieryx bojani." This, like 

 the lower tooth just described, represents an animal approaching in size 

 that of Cerviis canadensis. To describe their most striking characteristics 

 would be to repeat what has been said concerning those of the lower 

 molars. The teeth are broad, heavy, and low, and the valleys are 

 shallow. Among the other characters of this specimen are the follow- 

 ing : All of the teeth which have been preserved have heavy inner 

 cingula. The inner crescent of Pi has the appearance of having 

 been formed from two cusps or crescents uniting near the transverse 

 median line. The posterior portion of the crescent sends outward 

 two long horns, instead of one, to near the outer crescent. The pos- 

 terior portions of the anterior inner crescents of the molars end ab- 

 ruptly in a rounded border anterior to the middle of the anterior por- 

 tions of the postero-inner crescents — that is, the antero-inner cres- 

 cents do not send long horns outward to near the inner wall of the 

 antero -external crescent parallel with the anterior horns of the postero- 

 inner crescents. The smaller specimen described as Faiceomeryx 

 americanus (No. 755, Carn. Mus. Cat. Vert. Foss.), which is figured 

 in this paper, has this peculiarity also. On M^ of Falceomeryx the 

 anterior horn of the postero-inner crescent has an accessory spur, and 

 in M-^ there is a small tubercle in the median valley, between the 

 anterior and posterior inner crescents. The outer faces of the postero- 

 external crescents are concave and have only the faintest trace of a 

 median ridge. 



Nearly all of the above characters distinguish the available speci- 

 mens of Falceomeryx from those of Dromonieryx. 



An astralagus (No. 2263B, Carn. Mus. Cat. Vert. Foss.) from San - 

 san, indicates a much larger animal than Dromonieryx and there are 

 some differences in form. The specimens of teeth in the Carnegie 

 Museum from Steinheim confirm the characters exhibited by the 

 Specimens from Sansan. 



To sum up, then : As near as I am able to judge Dromonieryx difiers 

 from Fa/ceonieryx (i) in having higher, narrower, more modernized 



