xi. CETEOSAURUS BL1SWORTH. 289 



Fig. i c, Diagram CXIL, from Chapelhouse. Length, 3-00 

 inches; breadth of proximal face, 3*55; depth, 1*30. 



Fig. i d, Diagram CXIL, ungual bone from Chapelhouse. Length, 

 5-70 inches ; breadth of proximal face, 2'6 ; depth, if complete, 3*00. 



A remarkable bone in the Oxford Museum, probably from Chapel- 

 house, with what appears to be a double articulation -groove, has 

 been conjectured to be the proximal end of an ungual phalanx, but 

 the resemblance is slight. 



These are all the bones of ceteosaurus, known to me by personal 

 observation, which have been found in the Bath oolite series. 

 There was, however, one other discovery, and that an early one, 

 near Blis worth, already referred to, which yielded Professor Owen 

 a number of specimens, which are thus summarized in his Memoir 

 to the Geological Society q : 



'In the railway cuttings near Blisworth there were found 

 scattered over an area of 12 feet by 8 feet : 



' i. A bone resembling the episternal of an ichthyosaurus, the 

 length or antero-posterior extent of the preserved portion of the 

 median plate being ij foot, and the breadth of the posterior frac- 

 tured end 5 inches, from which it gradually expands to the root 

 of the side branches, where its breadth is i foot. From its obtuse 

 termination to the end of the longest branch is i\ feet, and from 

 this end to that of the opposite branch, 4^ feet. 



' 2. The remains of a coracoid and scapular apparatus of equally 

 gigantic proportions. 



' 3. A fragment, considered to be the shaft of a humerus, i foot 

 9 inches in length, 6 inches in diameter across the middle, and 

 8 inches across the widest end. 



' 4. A portion of the opposite humerus. 



* 5. Another fragment, believed to be a part of a radius or ulna, 

 about a yard in length, 6 inches across the proximal end, and 

 5 inches across the middle of the shaft. 



' 6. A slightly-curved portion of a rib, a yard long, and from 

 1 4 to 2, inches thick. 



'7. Five caudal vertebraB, agreeing in dimensions with the 

 vertebrae of Chipping-Norton/ 



I have not been successful in attempts to discover what has 



i On Ceteosaurus in the Oolitic formations. 184,1, p. 60. 

 U 



