312 
PEOBOSCIDEA. 
The imperfect neural arch of a cervical vertebra was found in connec¬ 
tion with the mandibular ramus, which served as the typical specimen. 
There is no zygapophysis, and the arch is narrowed upward. The spine is 
convex before, concave behind. The width of the base of the spine is 
0“.067; the elevation of the arch 0”.082. 
The only long bone of the fore limb in the collection is an ulna, with 
the epiphyses wanting. The shaft is subtriangular in section, and wider 
than deep along its middle portion. At the distal end, the lateral angles 
rise, especially one from the inner side, so that the depth is much greater. 
Here the inner face is nearly flat, while the external border presents an 
angular protuberance. There is no coronoid process, but the superior 
borders of the two sigmoid portions of the humeral cotylus are veiy pro¬ 
tuberant, that of the internal the most so. The olecranon is very short, not 
extending behind the olecranar portion of the humeral cotylus. Its inner 
border is produced, inclosing a deep groove with the inner border of the 
cotylus. 
Measurements of the ulna. 
M. 
Length without the epiphyses. 0. 470 
Length of the cotylus in the median line... 0. 096 
Greatest width of the cotylus. 0.183 
Depth at the fundus of the cotylus... 0.114 
Width at the middle of the shaft.. 0. 082 
Depth at the middle of the shaft.•- 0. 070 
Width at the distal extremity.... 0.129 
Depth at the distal extremity. 0.108 
Two carpal bones were obtained, the cuneiform and magnum, of which 
tlie former strongly resembles that of the Elephant of the Florence Museum 
figured by Cuvier.* Its ulnar face is rounded-triangular, and is divided 
into two facets, a right and a left, which are subequal in transverse extent 
and slightly concave. The inferior face has less transverse extent than the 
superior, and is undivided. The exterior tuberosity is large and decurved. 
The posterior or pisiform facet occupies a nearly median position on the 
superior half of the posterior face, descending along the external tuberosity. 
The magnum has a subquadrate transverse vertical section. Viewed from 
above, its superior face is rhomboid, witli nearly parallel slightly-curved 
* Ossemeus Fossiles, pi. xvi, fig. 19. 
