xi. MEGA LOS A UR US VERTEBRA. 207 



Caudal vertebrae appear to have hardly been observed by the 

 early describers of megalosaurus, that so called by Buckland being 

 clearly lumbar. Several caudals much compressed laterally come 

 to us from Stonesfield and Enslow Bridge, which I regard as 

 teleosaurian. One specimen, two inches long and broad, two and 

 a half high, the articulating faces equally concave, with sides 

 compressed below the transverse processes, appears to have belonged 

 to the anterior part of the tail of megalosaurus. The neural pro- 



Diagram LXII. Side view of a caudal vertebra of megalosaurus, from Stonesfield. 

 The arrow points from the head. Scale four-tenths of nature. 



cesses are wanting, and the specimen is obliquely compressed. 

 This vertebra is represented in Diagram LXII. 



The ' fore-quarter' of this animal, including in this term the 

 scapula, is known only to the extremity, and barely to that, of 

 the humerus. No trace of the middle element of the shoulder 

 girdle is known; what was regarded by Buckland as a clavicle , 

 appears by later research to be probably an ischial bone; what 

 was once admitted on the authority of Cuvier to be a huge lacertian 

 coracoid, is found to be, as Buckland originally believed d , an ilial 

 bone; and the true coracoid, a smaller and simpler plate, is an- 

 chylosed to the scapula, and forms with it the glenoid cavity e . 



In Diagram LXIII. the scapula, coracoid, and humerus are seen 

 in apposition on the left side of the animal. The scapula was 

 known to Professor Owen, but in a fragmentary state, in the 

 Bucklandian collection, and is described in his Report on Reptiles 



c Ossemens Fossiles, tome v. part 2, p. 347, ed. 1824. d Geol. Trans. 



e Letter from Professor Phillips to Professor Huxley^ Geol. Proc. 1 869. 



