330 MEMOIRS OF THE CARNEGIE MUSEUM. 
TONS 
Fig. 75. The manubrium of M. elatus (?) (No. 1763). 4. 1, inferior view; 2, superior view; 3, lateral view; 
4, cross-section at posterior extremity. 
MerasuREMENTS of Manusrium M. elatus (?) (No. 1763). 
Mm 
Greatestelengthic ncn ait schekecac ioe eae oa SETI Ce TER ern 210 
ihransverseidiame tenyantenl Olen Canteen tient arate ene 27 
Transverse diameter, at attachment forribs....................-0.0+--- 54 
unransverseldiameterya ui pOSteh OL en Gare ar een ter nn 45 
Werticaludiametern mearanterioren Gti tir er n e 65 
Vertical diameter, back of attachments for ribs......................000-- 37 
Werticalidiametersataposterion chdenreener ate ace tre eee tanner near 52 
THe Fore Limes. 
(Plates LXIV—-LXVIII.) 
The fore limbs, as was pointed out by Peterson in 1907, compare best with 
those of the Perissodactyla. The scapula is relatively broad, and nearly as 
long as the humerus. The radius and ulna are coéssified proximally and distally, 
and in old specimens of Moropus and Nestoritherium pentelici throughout their 
entire length. The feet are mesaxonic, the line through which the weight of 
the body passes being through the lunar, the magnum, and the third digit, of 
the manus, and through the third digit of the pes. The unguals are deeply bifid. 
4 Peterson, O. A., American Naturalist, Vol. XLI, p. 745 (1907). 
