328 



EXPLANATION OF THE PLATES. 



Plate XV. Fishes, ^ c. P. 261, &c. 

 All from the alum shale. 



1. Ichthyosaurus. Fine specimen. 



2. Another specimen. 



3. Another of a larger size, but less perfect. 



4. A fin, or paddle, of the ichthyosaurus. 



Plate XVI. Fishes, ^c. P. 261, &c. 

 All from the alum shale. 



1. Imperfect ichthyosaurus, with two fins. 



2. Head of an ichthyosaurus. 



3. Fragment of a head, shewing the order of 



the teeth. 



4, 5, 6. Specimens of vertebrae. No. 6 may 

 belong to the plesiosaurus. See Geolo- 

 gical Transactions, V. p. 583, &c. 



7, 8. Pikes, with shining bony scales & plates. 



Plate XVIl. Teeth and bones of Quadrupeds, S^c. 

 All from Kirkdale cavern, except No. 1, which is from R. Hood's Bay. 



FIG. 



1. Elephant's grinder, very large. 



2. Part of the jaw of a wolf. 



3. Part of the pinion bone of a fowl, 



4. Shank bone of a large quadruped. 



5. Leg bone of a small quadruped ; full size. 



6. Grinder of the palceotherium magnum. 



7. Another large grinder. 



8. Grinder of a small palaeotherium. 



9. Grinder from the under jaw of an ox. 

 10. Half expanded molar tooth of an ox, or 



large stag. 



11. Part of a jaw, with two grinders, of au 



unknown animal. 



12. Grinder of a rhinoceros. 



13. Part of a stag's horn. 



14. Fetlock bone of a quadruped. 



15. Jaw of a hysena, with the teeth. 



16. Small rib ; probably of a rat, as the jaw of a 



rat from the cavern is in the Rev. J. 

 Smyth's collection. 



^::^ The Binder will place the Map, Section, and Lithographic 

 Plates, at the end of the Work, immediately before the Index ; and 

 is requested not to beat the Plates. 



