AL, MEMOIRS OF THE CARNEGIE MUSEUM. 
the same accession number and evidently belonged to a large and fully matured 
specimen of Moropus elatus Marsh. 
Catalog No. 1712. 
This is a remarkably well preserveds series, representing the first five dorsals 
belonging to an animal of considerable size. The bones articulate very well, and 
Fic. 48. Lateral view of the first five dorsals (No. 1712, C. M. Cat. Vert. Foss.). 4. 
with the exception of minor injuries at the extremity of the spines and of the 
articulating faces between 1 and 2 are practically perfect. 
Catalog No. 1718. 
This series consists of the second, fifth, sixth, seventh, tenth, twelfth, four- 
teenth, and fifteenth dorsals of a large and somewhat immature individual. In 
all cases the posterior epiphyses of the centra have been lost and in the case of 
the sixth and the fourteenth the anterior epiphysis has also been lost. The spines 
and transverse processes in this series are upon the whole very well preserved. 
