196 PROCEEDINGS OF THE ACADEMY OF [1885. 



with the moose. The Scapula is rather small in proportion to 

 the size of the animal, being a little shorter than in the moose, 

 and much more so than in Megaceros. In shape the bone is more 

 cervine than alcine ; the anterior border is straighter, and the 

 prescapular fossa smaller than in the moose, while the neck is 

 less contracted and the coracoid larger. 



The Humerus is not different in any important way from that 

 of the moose, except for a slight increase in length. 



The Ulna and Radius show a still greater increase in length, 

 but are only slightly thicker than in the moose, so in proportion 

 they are more slender. As in Alces, the two bones are co-ossified 

 only at the distal end, instead of being firmly united for two- 

 thirds their length as in most deer. 



The Carpus is like that of the moose in almost every particu- 

 lar, consisting of scaphoid, lunar, cuneiform, pisiform, trapezium, 

 trapezo-magnum, and unciform. 



The Metacarpus is very long, much of the great height of the 

 animal being due to it. It is about one-half an inch shorter than 

 in the largest of the two Philadelphia specimens, but the propor- 

 tions are almost identical. The rudimentary lateral metacarpals 

 are like those of the moose in shape, but are longer. 



The Phalanges of the median digits are unusually long and 

 slender, even when compared with those of the moose. The 

 unguals are veiy long and pointed. The phalanges of the rudi- 

 mentary digits are larger and heavier than in the moose. 



The Pelvis is almost precisely like that of the moose, and needs 

 no particular description. 



The Femur is slightly longer, but no heavier than in the moose, 

 and offers a striking contrast to the massive thigh-bone of Mega- 

 ceros, which is as heavy as that of an ox. The trochlear groove 

 is shallow, with sharp edges, and the patella is small. The great 

 trochanter is higher than in the Megaceros, and rises more verti- 

 cally from the shaft, but all the other processes for muscular 

 attachment are much less prominent. 



The Tibia is an exceedingly long bone, but its increase in 

 length has not been accompanied by any corresponding increase 

 in thickness. The astragalar groove is like that of Alces, the 

 fibular facet and the fibula are like those of Cervus. 



