PLaTe XXVII. 
Fig. 1, episternum and portion of clavicles of Plestosaurus mudget ( ?) Cragin, 
from below. X1/2. 
Fig. 2, dorsal vertebra of Plestosaurus gouldti (type specimen), from the 
front. 1/2. 
Fig. 3, the same, from the side. X1I/2. 
Drawn by Sidney Prentice. 
