ROOM III. SYNOPSIS OF CONTEXTS. 139 



fossil Chelonians, or Turtles and Tortoises, from the Tertiary 

 deposits at Sheppey, Harwich, <fcc. ; and some interesting 

 detached bones and plates of Turtles from the Wealden of 

 Tilgate Forest, especially of Tretosternum Bakewelli, (formerly 

 in the Author's collection.). 



Below there are two specimens of a small Crocodilian 

 reptile the Geosaurus, from Solenhofen. 



On the left of the above are casts of three species of Ptero- 

 dactyles, or Flying Reptiles, from Solenhofen, viz. P. longi- 

 rostris, P. brevirostris, P. Munsteri. 



In a small frame is the unique specimen of Pterodactyle, 

 (P. macronyx) from the Lias of Lyrne Regis ; discovered by 

 Miss Mary Anning, and described by Dr. Buckland in " Geolog. 

 Trans." Vol. III. PL XXVII. p. 220. 



B. [2.] On the upper shelf are a beautiful head, with 

 part of the vertebral column of Macrospondylus, and below 

 a fine cranium of Crocodilus toliapicm from the Isle of 

 Sheppey ; and a portion of skull, with the jaws and teeth 

 perfect, of a large Teleosaurus. 



To the right of the Teleosaurus is the cranium of Crocodilus 

 Spenceri, from the Isle of Sheppey, (figured in Dr. Buckland's 

 "Bridgewater Treatise," PL XXV.) 



On the shelf below, (immediately above the Hylososaurus,) 

 is a very fine example of Teleosaurus prisons, or Aelodon, from 

 Monheim. On the right of the Hylceosaurus are specimens 

 of Teleosaurus Chapmanni, and remains of other extinct 

 crocodilian reptiles. 



Mosasaurus or Fossil Reptile of Maastricht. In the lower 

 division of Case B, near the angle, is a model of the celebrated 

 specimen of the Mosasaurus Hoffmanni, now in the Jardin 

 des Plantes. (Presented to the Author by Baron Cuvier.) 

 Above it are two fine portions of the jaws with teeth, of the 

 same species of gigantic reptile, presented in 1784 by Dr. 

 Peter Camper. On the frame of the Geosaurus are some 

 detached vertebrae of Mosasaurus from Maestricht ; and a 

 small slab of chalk in which are imbedded two caudal vertebras 

 and a detached dorsal vertebra of a species of Mosasaurus, 

 (M. stenodon,) from the chalk near Lewes. (Figured in 

 " Fossils of the South Downs." 1822.) 



Hylceosaurus. In the lowest department in the centre of 

 Case B, is the first discovered specimen of Hyl&osaurus, 



