112 ICHTETOPTEKYGIA. 



40111. The centrum of a smaller caudal vertebra ; from Lyme- 

 Regis. Purchased. 



R. 308. One half of the centra of two posterior caudal vertebrae of 

 a large form, which have been vertically and longi- 

 tudinally bisected ; from the Upper (?) Lias of Altdorf , 

 Franconia. By exchange. 



R. 1207. Polished slab showing a section of two large vertebral 

 centra ; from Lyme-Regis. No history. 



R. 1208. Polished slab exhibiting a section of five smaller vertebral 

 centra ; from Lyme-Regis. No history. 



R. 1209. Polished slab showing a section of seven still smaller 

 vertebral centra ; from Lyme-Regis. No history. 



28509. Eleven associated centra of the caudal vertebras of a large 

 form ; from Lyme-Regis. These specimens are probably 

 referable to I. platyodon. 



Dixon Collection. Purchased, 1851. 



41647. A segment from the middle of a large caudal vertebra; 

 from Lyme-Regis. 



Toulmin-Smith Collection. Purchased, 1869. 



1229. An anterior caudal vertebra of a comparatively small form, 

 wanting the extremitv of the neural spine ; from the 

 Upper Lias of Whitby, Yorkshire. Purchased. 



R. 1200. Slab exhibiting the left lateral aspect of the hinder part 

 of the caudal region ; probably from Barrow-on-Soar, 

 Leicestershire. No history. 



R. 1201. Slab showing the ventral aspect of the hinder part of the 

 caudal region of a rather smaller form ; from Street, 

 Gloucestershire. No history. 



R. 1202. Slab showing the left lateral aspect of the extremity of 

 the caudal region and one pelvic bone of a smaller form ; 

 probably from Street. No history. 



R. 1206. Slab exhibiting the dorsal aspect of the interclavicle of a 

 medium-sized form ; from Lyme-Regis. No history. 



28962. The interclavicle of a small individual ; from Lyme-Regis. 



Dixon Collection. Purchased, 1851. 



R. 1210. The transverse portion of the interclavicle of a very large 

 form ; from Lyme-Regis. No history. 



