EXPLANATION OF PLATES 8. 9. 10. 21 



fragments of the rest of the skeleton, are artificially restored. 

 (Hawkins.) 



Plate 8. V. I. p. 170. 



1. Skeleton of a young Ichthyosaurus communis, in the 



collection of the Geological Society of London, found 

 in the Lias at Lyme Regis. (Scharf. Original.) 



2. Ichthyosaurus intermedius, from Lyme Regis, be- 



longing to Sir Astley Cooper. (Scharf. Original.) 



Plate 9. V. I. p. 170. 



1 and 2. Ichthyosaurus tenuirostris, from the Lias near 

 Glastonbury, in the collection of the Rev. D. Wil- 

 liams, of Bleadon, near Bristol. The position of the 

 ribs is distorted by pressure. (Scharf. Original.) 



3. View of the right side of the head of the same animal. 



(Original.) 



Plate 10. V. I. pp. 171,173. 



1. Head of Ichthyosaurus platyodon, in the British 



Museum, from the Lias at Lyme Regis, copied from 

 Sir E. Home's figure in the Phil. Trans. 1814. 



2. Copied from Mr. Conybeare's figure, (in the Geol. 



Trans. Lond. O. S. PL XL. Fig. 11.) shewing the 

 analogies between the bones of the head of Ichthyo- 

 saurus, and those which Cuvier has marked by cor- 

 responding letters in his figure of the head of the 

 Crocodile. 



3. Two of the bony plates in the sclerotic coat of the 



Eye of Ichthyosaurus platyodon. 



4. Circle of bony plates in the Eye of the snowy Owl. 



(Yarrel.) 



5. Circle of similar plates in the Eye of the golden Eagle, 



(Yarrel.) 



