222 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



and Yiv&t'ra; in Cam's it is absent. The last two features are seen in 

 Didt'Ij)!) !/■•<, to which the scapnhi has otherwise littU^ resemblance. 



The humerus most nearl}' resembles that of the domestic cat, Init is 

 somewhat more massive throughout and a little broader at the distal 

 end. The shaft is comparatively straight, the deltoid crest scared}'- 

 more prominent than in Fflis^ although extending farther down the 

 shaft. The supinator crest is a little higher than in Felis domestica^ 

 the trochlea is considerablv broader, and the internal condvle and 



Fig. 15.— SiNoI'A (iRANC.ERI, HrMERU.S, ANTERIOR AND POSTERIOR VIEWS, NAT. SIZE. {I- '•. UKEATER 

 TrBEROSITY; (//^ DELTOID CREST: C. C.f., ESTEPICONDYLAR FORAMEN; /./., LESSER TUBEROSITY; .t. C./., 

 SUPRA-TROCHLEAR VACUITY. 



eutepicondylar foramen considerably wider. There appears to be a 

 supratrochlear foramen, but of this I can not be certain. The shaft is 

 somewhat straighter, the deltoid crest less developed than in Cams. 

 Daj)/iO'?H/.s shows still more curvature of the shaft; the deltoid crest is 

 higher and extends much farther down; the trochlea resembles that 

 of Sinopa,, but the internal condyle and the supinator ridge are less 

 developed. The opossiun humerus is M'idely different in form at the 



