CHAPTER IV. 

 PART I. 



PLAN OF BOOM IV. SYNOPSIS OP CONTENTS ICHTHYOSAURI COLLECTED BY 

 MR. HAWKINS ICHTHYOSAURUS TENUIROSTRIS I. INTERMEDIUS I. LONQI- 



PENNIS I. COMMUNIS 1. PLATYODON I. LONCHIODON I. LONGIROSTRIS 



FOSSIL REMAINS OF RUMINANTS FOSSIL CARN1VORA OF THE CAVERNS 

 MACHAIROI>US FOSSIL MAMMALIAN FROM STONESFIELD MINERALS UNI- 

 VALVE SHELLS OF THE OOLITE AND CRAG FOSSIL ZOOPHYTES. 



THE Wall-cases A, B, C, D, E, on the south or left side of 

 Room IV., like those in the apartment we have just surveyed, 

 are assigned to fossil remains of reptiles, and contain a 

 noble collection of ICHTHYOSAURI, from the liassic deposits of 

 England. With but few exceptions, these splendid specimens 

 were obtained and developed by Thomas Hawkins, Esq. of 

 whom they were purchased by the Trustees of the British 

 Museum, together with the unrivalled series of Plesiosauri 

 described in the former chapter. 



A collection of bones of ruminants from the alluvial deposits 

 [of the valley of the Thames, chiefly from Grays and Ilford in 

 [Essex, is deposited in Wall-case F. It comprises some fine 

 [skulls, jaws with teeth, and bones of the extremities, of several 

 [species of Bos or Ox, Deer, &c. 



In Wall-case G, there is a considerable number of very 

 [perfect crania, jaws with teeth, &c. of extinct species of 

 [Bears, from the ossiferous caves of Gailenreuth, in Germany; 

 land a most interesting and precious fossil relic the half of 

 fthe lower jaw of a small terrestrial mammalian, from the 

 lower Oolite of Stonesfield. 



Besides the fossils above specified, there are many species 

 land genera of tertiary and secondary univalve shells, and 



