52S 



E. II Barbour — Ned) longirostral Mastodon. 



It is apparent that other material is to be expected in this 

 pit and since the owner encourages further exploration, work 

 will be resumed, if possible, during the season of 1916. Within 

 a few months, all parts of the new Tetrabelodon will be pre- 

 pared, whereupon photographs and descriptions, entering more 

 into detail, will be published. 



The specimen figured and described herein is from the col- 

 lections of Hon. Charles H. Morrill and Mr. Hector Maiberi, 



Fig. 4. 



Fig. 4. Skull and inaudible of Tetrabelodon osborni. x 1/15. The skull 

 is still in plaster "cinches." Below are shown sections of tusk and man- 

 dible. Above, a conjectural restoration of the head. 5" should read 5%" . 



Patrons of Paleontology, The University of Nebraska, field 

 season 1915. 



Since the above was written, the plaster " cinches " have 

 been removed from the palatine and occipital regions, and from 

 most of the left side of the skull, well to its dome. In brief, 

 the skull is that of an unelephant-like elephant. Barring 

 innumerable cracks, the skull seems anatomically perfect, and 

 is rich in morphological suggestions. It seems impressively 

 simple and lacks the specialization of the later forms. The 

 dome is unexpectedly low ; the occiput flat, though rounding 



