PETERSON : NEW CARNIVORES FROM MIOCENE OF WESTERN NEBRASKA 231 
In the material belonging to a skeleton of Daphenodon in Amherst College, 
Massachusetts, now in the Carnegie Museum,” there is an os penis of very large size, 
and also different in its general shape from that described above (see Fig. 27, 1). 
Fia. 27. Os Penis of D. superbus. 4 nat. size. 1, superior and lateral views of os penis, Amherst specimen ; 2, 
superior and lateral views of os penis with skeleton No. 1589a, Car. Mus. Cat. Vert. Foss. 
Thus its shaft is more elliptical in cross-section, especially toward the posterior end, 
and it has a less complex curvature at the anterior end. It is, however, deeply 
grooved near the anterior end as in the smaller specimen, though not bisected, but 
suddenly expanded to a round spout with many small tubercles on the anterior 
border. How much longer this bone was is rather difficult to say, but it would 
seem that it is broken off immediately in front of the rugose surface for the attach- 
ments of muscles to the pubes. Whether the larger bone represents the fully adult 
stage of development or pertains to another species cannot now be fully determined. 
If, on the other hand, the two different bones represent fully adult forms there is 
apparently a great range of variation of this bone in this genus. 
Tue Fore Limp. 
(Plates LX XVITI-LX XX.) 
Scapula (Plate LX XVIII). The scapula is well preserved and completely 
represented in the type specimen as well as the younger specimen found with it. 
This important bone of the fore limb displays a number of rather surprising features 
and probably sheds considerable light on the characters of the scapula in Daphenus, 
which is not yet known. The bone as a whole reveals a curious combination of the 
features of the scapula of the tiger and the bear, and shows less similarity to that of 
the Canide. As in the tiger, the bone is elongated, with sub-equal pre- and post- 
scapular fossee, the coracoid border is suddenly expanded and again contracted 
4 On further excavation by the writer in the quarry where Prof. Loomis of Amherst found the skeleton, there 
were found various parts which belong to the Amherst specimen and will be forwarded to that institution. 
