50 Annals of the Carnegie Museum. 



without distinct separacion, the two forming a perfect right angle 

 apparently similar to that in Mesatirhiniis}^ 



Aside from the greater proportionate length, the metatarsals differ 

 from those in Tifaitotheriin)! by being arched forward to a greater 

 degree. The shaft of INIt. IV^ is mor-e c\lindrical and the facet for the 

 cuboid more oblique. 



Measurements. 



Aslragalus. 



No. 2860. 

 Mm. 



Total length 71 



From lower end of external condj-le to distal end 26 



Greatest transverse diameter 68 



Transverse diameter of trochlea 56 



CaJcaiicitm. 



Greatest length 124 



Length of tuber 64 



Vertical diameter of tuber 45 



Transverse diameter of tuber 22 



Transverse diameter at sustentaculum 70 



Mt. II. 

 Length 150 



Transverse diameter at head 28 



Transverse diameter of shaft, median region 21 



Transverse diameter of distal end 26 



.1//. /]". 

 Length 41 



Transverse diameter of head 38 



Transverse diameter of shaft, median region 22 



Transverse diameter of distal end 34 



Restoration of Diploccras osbonii. 

 Plate X. 



The restoration here attempted is obtained from the material 

 described in the preceding pages and it is chiefly based on two indi- 

 viduals. As previously stated, the front of the skull, the lower jaws, 

 atlas, axis, pelvis, and a few fragments of the feet pertain to one 

 individual, the type, whrle the rest of the vertebral column, a few 

 ribs and limb-bones, as well as a number of foot-bones belong to a 

 second indi\idual, one of the paratypes.^^ The dotted lines represent 



16 Osborn, H. F., Bull. Ama: Miis. Nat. Hist., \'ol. XXIV, 1908, p. 68. 



1" There was no other material found with the remains of Diploceras described 

 in the preceding pages, except a few fragments of turtles. All the material was 

 found within a radius of about 20 feet. 



