66 ICHTHIOPTERYGIA. 



R. 1084. The middle portion of a rostrum; probably from Lyme- 

 Regis. The teeth are larger than in the preceding, and 

 indicate that this specimen may belong to /. communis. 



No history. 



2090*. The orbital region of a medium-sized skull ; from Lyme- 

 Regis. The frontal region, the parietal foramen, and right 

 supratemporal fossa, orbit, and narial aperture are well 

 exhibited. The few teeth remaining appear to be of the 

 type of 1. communis, to which species it is very probable 

 that the specimen should be referred. Hawkins Collection. 



At least the majority of the following specimens belong 

 to this Group. 



R. 1176. A right scapula ; probably from Street. This specimen 

 cannot be distinguished from the corresponding bone of 

 I. intermedins. No history. 



R. 1177. A right scapula of similar dimensions, but with a narrower 

 distal extremity ; probably from Street. No history. 



R. 1178. A smaller right scapula ; probably from Street. 



No history. 



R. 1179. A similar specimen ; probably from Street. No history. 



R. 1180. A considerably smaller right scapula ; probably from 

 Street. No history. 



R. 1181. Slab showing the dorsal aspect of a similar right scapula; 

 from Street. No history. 



R. 1182. A left scapula, agreeing in size with No. R. 1178 ; locality 

 unknown. No history, 



R. 1183. Slab showing the dorsal aspect of a very similar left 

 scapula : probably from Street. No history. 



R. 267 c. A left scapula, nearly equal in size to the preceding, but 

 relatively narrower ; from Lyme-Regis. This specimen 

 probably belongs to I. communis. 



Egerton Collection. Purchased, 1882. 



R. 267 d. Slab showing the dorsal aspect of a smaller left scapula 

 of similar type ; from Lyme-Regis. This specimen closely 

 resembles the corresponding bone of the skeleton of /. com- 

 munis, No. R. 1162. Egerton Collection. 



