282 



THE BATH OOLITE PERIOD. 



CHAP. 



anterior face of the bone. It corresponds exactly, except in mag- 

 nitude, with the specimen presented by Mr. Strickland. 



Tibia. One complete specimen of this bone has been obtained, 

 of a size corresponding 1 to that of the femur of the large animal, 

 but unexpectedly short. Its extreme length is 38-5 inches; greatest 

 breadth near the upper end, 17*0; at the lower end, 12*0 ; greatest 

 thickness, lower end 6*75, upper end 5'75- 



Diagram CIX. Tibia of Ceteosaurus. Scale, one-tenth of nature. 

 I. Seen in front, right side. 2. Seen from behind. 3. Lower end. 4. Upper end. 



The bone is not so like any other of the deinosaurian type, or 

 like the crocodile's tibia, as to be placed at once without doubt 

 in the right aspect as to front and back. It is but little twisted, 

 the long diameters of the ends being not much divergent. The 

 terminal surfaces are strongly marked by the pitted adherence of 



