LEONTINIA GAUDRYI I19 
The atlas associated with skull No. 3335 is a decidedly 
heavy bone in all its proportions. The axis and the third 
cervical were associated with skull No. 3291x, and are 
likewise heavy bones. The following are typical meas- 
urements: 
Atlas, greatest length 86 mm, 
Atlas, greatest width 170 mm, 
Axis, length of centrum and odontoid process 132 mm, 
Axis, length of odontoid process 34 mm, 
Axis, width across anterior cotyles 98 mm. 
Cervical 3, length of centrum 66 mm. 
Cervical 3, width of posterior end of centrum 55 mm, 
Fig. 74. Atlas seen from below—1/4 natural Fig. 75. Axis and cervical vertebra, No. 3—1/4 
size. natural size. 
While there are other vertebrae in the collection, which 
probably belong to this species, I have not cared to make 
the association without some evidence of a definite char- 
acter. However, in the case of a fore limb, which was 
found fairly near one of the skulls, is of proper size, and 
because this humerus occurs with something like the fre- 
quency of the skulls, I have been convinced that it belonged 
to this species, and so described it under the genus. This 
specimen consists of the two humeri, the radius and the 
ulna, No. 3328. 
Humerus, greatest length 314 mm. 
Humerus, diameter of head 77 mim, 
Humerus, transverse diameter of the shaft 43 mm. 
Humerus, width of distal end 116 mm. 
The ulna lacks some 60 mm. in the middle of the shaft, 
but when fitted to the radius its length can readily be ob- 
