Peterson: The Osteology of PROMERYCocnoiRus. 195 



No. 1080 



(Types) No. 1081. 



Mm. Mm. 



Tarsus, height ; ? 62 62 



Tarsus, breadth ? 50 50 



Astragalus, height 50 50 



Astragahis, breadth 38 38 



Mt. II, length 63 65 



Mt. Ill, length 75 77 



Mt. IV, length 80 79 



Mt. V, length 65 61 



Digit III, length of first phalanx 28 27 



Digit III, length of second phalanx 18 16 



Digit III, length of terminal phalanx 24 24 



The Articulated Skeleton of Promerycochoerus Carrikeri 



Peterson. 

 (Plate XXXV). 



This description of the articulated skeleton is a somewhat modified 

 restatement of the account given by the writer in the Annals, Vol. IV, 

 pp. 28, 29. 



"The skeleton No. 1081 was found on the same level, nine feet from 

 the group [PI. XXXIII] mounted in the Hall of Vertebrate Paleon- 

 tology of the Carnegie Museum, and practically was one of them. 

 The anterior portion of the skeleton was unfortunately eroded and lost, 

 but from the fifth dorsal backward the skeleton is practically complete. 

 The head of the left humerus, the distal end of the right humerus, and 

 a small portion of both ulnae were also found in position. Nearly all 

 of the ribs are represented. 



"The parts supplied in this restoration were taken from three dif- 

 ferent individuals of the same species, the skull and jaws from a speci- 

 men cataloged as No. 109 [somewhat too small for the skeleton]; 

 the cervicals, anterior dorsals, first lumbar, and the left scapula 

 (which are somewhat too large for the skeleton) were derived from 

 the specimen cataloged as No. 1228. The humeri, radii, and ulnai 

 are mostly restored in plaster. 



"... The skull is short and deep, the neck short and robust, the 

 neural spines of the dorsals are high, the lumbar vertebrae are heavy, 

 with strong zygapophyses and thin transverse processes, which are 

 much extended transversely at the distal extremities [those on the 

 last lumbar longer and more extended transversely than on the verte- 

 brae preceding it]. There are eight well coossified vertebrae in the 



