BATHMODON. 549 



ii. 



Width of cuboid facet 025 



Length of cuboid facet 0-23 



Length of anterior calcaneal facet Z .' 040 



Width of anterior calcaneal facet _ 024 



Length of posterior calcaneal facet 021 



Length of fibular (axial) 043 



From the Wasatch Lower Eocene at Evanstou, Wyoming. Numerous 

 specimens of teeth of both jaws obtained by myself in New Mexico, and 

 by Mr. Wortman in the Wind River and Big Horn regions of Wyoming, 

 agree closely with those found with the bones of this species. In lack of 

 diagnostic bones it is not possible to identify them positively with the B. 

 radians. A humerus having much the character of that of this species is 

 figured on Plate LIV, fig. 5, of my Report to Capt. G. M. Wheeler. 



Bathmodon pachypus Cope. 



Proceedings Academy Philadelphia, 1882, p. 294. 

 Plates XLlVc; XLlVd; XLIVe; figs. 7-13. 



The largest species of the Pantodonta yet known is represented by 

 portions of two individuals. Neither of these includes any teeth, but the 

 characteristic bones of the skeleton have been preserved. They indicate 

 an animal of the dimensions of the middle-sized species of Uintatherium, 

 but with shorter legs. All the specimens were found by Mr. J. L. Wort- 

 man in the Wasatch beds of the Big Horn Basin of Wyoming. It is possi- 

 ble that some of the large teeth of the collection made by Mr. Wortman 

 belong to this animal, but there is as yet no means of pi'oving the connec- 

 tion. 



One of the specimens includes a large part of the humerus, with head 

 of radius ; pelvis entire ; femur entire ; and a good many carpal and tarsal 

 bones, metapodials, and phanlanges. The only cranial fragment is a man- 

 dibular condyle. The bones of the fore limb and foot do not differ from 

 those of the specimen above described, except in their superior size, with 

 the following exceptions : The outline of the proximal extremit}- of the 

 great trochanter is a semicircle rather than a triangle. Thei'e is little indi- 

 cation of the tuberosity of the superior border of the head of the radius. 

 The proximal end of the pisiform is preserved. It is more expanded trans- 

 versely than the distal extremity, as I have represented in figs. 2 and 5, 

 Plate LIX, of my report to Captain Wheeler. 



