380 THE PORTLAND OOLITE PERIOD. CHAP. 



articulation much worn away. The other parts are not worn. 

 The anterior face is channeled parallel to the edges, the sym- 

 physial line rises externally to a carination, which corresponds to 

 a vaulted interior. If complete, the pair would measure 20 inches 

 across. 



TELEOSAURUS ASTHENODEIRUS. Owen. 



The two cervical vertebrae from the Kimmeridge clay of 

 Shotover, noticed by Professor Owen in his Report on Fossil 

 Reptiles under the above name, are in the Oxford Museum. 

 Other specimens since found, which probably belong to the 

 same species, give the form of the atlas and anterior part of 

 the axis conjoined with it, much resembling the same parts in 

 steneosaurus. 



The vertebrae examined by Professor Owen are longer in pro- 

 portion to their diameter than in other species of this genus. 

 The articulating faces are slightly concave, the anterior least so. 

 The length of the corpus is 2*2 inches ; the vertical diameter, r6; 

 the transverse diameter, i'5, according to Owen. 



STENEOSAURUS PALPEBROSUS. Phil. 



The Oxford Museum has for a long time possessed the head of 

 a species of this genus, shewing the upper and lower surfaces, as 

 represented in the diagram which follows, and a considerable part 

 of the lower jaw of the same individual. The specimens were 

 found in the Kimmeridge clay of Shotover Hill. They were briefly 

 described by Professor Owen in his Report on Fossil Reptiles, 

 1841. 



The clay pits of Shotover and Garsington have yielded examples 

 of most of the important bones of this animal, derived from 

 different individuals, and of different ages. The vertebral column 

 is represented by cervical, dorsal, lumbar, sacral, and caudal 

 elements, all decidedly of crocodilian affinity both in form and 

 number. 



The arrangement of the pectoral girdle may be understood by 



