110 Annals of the Carnegie Museum. 



Total length of fragment of radius. . no mm. 



Transverse diameter of head of radius 18.5 



Antero-posterior diameter of head of radius 12 



Greatest height of magnum 10.5 



Transverse diameter of magnum 8 



" " at head of metacarpals III, IV and V in position. 18 



The blade of the ilium rises suddenly from the great sacro-sciatic 

 notch and the gluteal surface presents a great antero-posterior extent , 

 as in Paloplotherium'^ and in the recent tapir; the point of the ilium, 

 however, extends proportionally further forward than in the recent 

 genus. The acetabulum is deep and surrounded by a heavy border; 

 the ligamentary pit is quite large and deep and the cotyloid notch is 

 well developed and rather broad. The spine of the ischium is small, 

 though quite plain, and is located opposite the posterior border of the 

 acetabulum, as in the tapir. The obturator foramen is apparently 

 large, judging from the broad expansion between the ischium and 

 pubis near the acetabulum. 



The great trochanter of the femur rises high above the head, which 

 again suggests Paloplotherium viiuiis and shows a marked difference 

 from the condition in the tapir, more nearly suggesting the condition 

 found in Equus. The digital fossa is deep and also extends above the 

 top of the transverse line of the head, while in the tapir it is below this 

 line. The bone is mutilated in the region of the lesser trochanter, but 

 enough is preserved to indicate that this process is of some prominence. 

 The shaft is also broken in the region of the third trochanter, but it is 

 shown to have considerable vertical and lateral diameters (See PL 

 XLII, Fig. 3). The tibial border of the rotular trochlea is very little 

 more developed than the fibular border, a tapiroid rather than an 

 equine character. 



The tendinal groove on the outer face of the head of the tibia, the 

 groove for the lateral ligament from the femur, is larger than in the tapir 

 and the cnemial crest is less prominent, otherwise the head of the tibia 

 is generally similar in the two genera. The distal end also differs 

 from that in Tapirtis by having the trochlea more oblique, an equine 

 rather than a tapiroid character. 



From the distal end of the fibula, the only portion of that bone 

 prescr\-ed, I judge that the shaft is considerably reduced. On the dis- 



'^ Sec Blainville (Osteographic) Palceolhcrium minus, PI. \'I. Palaolherium 

 minus Cuvicr, is now accepted as Iselonging to the genus Paloplotherium Owen. 



