40 THE UNIVERSITY SCIENCE BULLETIN. 



Meade gravels. The following species have been determined, of 

 which two are new: 



Testudo equicomes, new species. 

 Mylodon harlani Owen. 

 Hipparion cragini, new species. 

 Equus compHcafus Leidy. 

 E. leidyi Hay. 



Camelops huerfanensis (Cragin). 

 Canis occidentalis ? Richardson. 

 A. large undetermined felid. 



Testudo equicomes, new species. 



In the Cragin collection made on Spring creek in Meade county 

 there are eight fragments of bones which belonged to species of 

 the genus Testudo. It is quite certain that three or four species 

 are indicated, but only two of the fragments can be assigned to 

 the same individual or species. To these the name Testudo equi- 

 comes is, given. The other pieces of bone can not be assigned to 

 their species. 



The two bones which quite certainly belonged to the same in- 

 dividual are the right epiplastron and the left hypoplastron. The 

 epiplastron (pi. I, figs, 1, 2) has a projecting and much thickened 

 beak. The distance from the midline in front to the point on the 

 free border where the bone joined the hypoplastron is 68 mm. 

 The width of the bone at the middle of its length is 30 mm. The 

 length of the beak, measured on its upper surface and at the mid- 

 line, is 35 mm.; and at its rear it is 27 mm. thick. The whole free 

 border of the bone is acute. From this border the hinder half of 

 the bone thickens until, at a short distance behind the beak, it 

 reaches a thickness of 11 mm. 



The hinder and inner borders of the hypoplastron (pi. I, fig. 3) 

 are missing, so that the bone present reaches neither the midline 

 nor the hypoplastron. From the anterior end of its free border to 

 the axillary notch is a distance of 30 mm. 



Figure 1 of plate III represents an attempt to restore the an- 

 terior portion of the plastron from the two fragments described 

 above. The lobe appears to have been relatively short and broad. 

 From one axillary notch to the other was apparently 160 mm. 

 From the middle of the line joining these notches to the front of 

 the beak was 66 mm. The entoplastron appears to have been 

 unusually wide, apparently about 80 mm. How it ended behind 

 is conjectural. From the outer edge of one hypoplastron, at the 

 bridge, to that of the other was about 200 mm. Basing the esti- 



