REPTILIA. 
39 
Fig. 37. —Body or centrum of anterior dorsal ^vertebra of Ichthyosaurus , 
viewed in section, from the front and from the deft side; from the 
Kimmeridge Clay of Wiltshire; one-half inat. size. (Table-case 20.) 
Fig. 38.—Right fore (A) and hind (B) paddles of Ichthyosaurus intermedius, 
from the Lower Lias of Lyme Regis; one-third nat.i'size. c 1 , c 2 . 
centralia; /. fibula ; f 1 . fibulare; h. humerus; i. intermedium; r. radius; 
r l . radiale; t. tibia ; t x . tibiale ; u. ulna; u 1 . ulnare. (After Lydekker.) 
