482 BUMPUS. 
EXPLANATION OF PLATE B. 
SPECIMENS 1 and 2, the smallest in the series, gave, on the original photo- 
graphic plate, the total number of vertebrae with remarkable clearness. They 
have greatly suffered in the process of reproduction. 
SPECIMEN 79 is especially interesting in that certain of the caudal vertebrz 
are provided with double neural and hemal spines. 
