104 ICHTHYOPTEEYGIA. 



pelvic limb the intermedium is thrust up to articulate 

 with the femur: and the detached femur of the opposite 

 side shows three distinct distal facets. No history. 



31940. The imperfect pectoral limb of a smaller individual ; from 

 Lyme-Regis. The bones are incorrectly arranged ; but it 

 seems that only the radius and the ulna articulated with 

 the humerus. Purchased. About 1852. 



R. 1161. The left humerus of a very large individual; probably 

 from Lyme-Regis. The length is 0,235, and the trans- 

 verse diameter of the distal extremity 0,191. The general 

 proportions of this specimen are very similar to those of 

 the humerus of /. tenuirostris, but the shaft is less 

 constricted. The transverse elongation of the proximal 

 head is well shown. No history. 



31939. A somewhat distorted humerus of similar type and of nearly 

 the same dimensions ; from Lyme-Regis. Purchased. 



R. 809. The imperfect proximal portion of the right pectoral limb, 

 associated with the cranium No. R. 808; from Lyme- 

 Regis. There remains the distal extremity of the humerus 

 with the radius, ulna, and intermedium, in their proper 

 relative positions ; the arrangements of the other bones is, 

 however, incorrect. Purchased, 1821. 



R. 1173. A radius agreeing in size with that of the preceding 

 specimen ; from Lyme-Regis. The vertical diameter is 

 0,160 (6*3 inches), and the transverse 0,165 (6'5 inches). 



No history. 



40113. The associated radius and ulna of a medium-sized individual 

 probably belonging to this species ; from Lyme-Regis. 



Purchased. 



R. 1194. An imperfect pelvic limb probably belonging to a medium- 

 sized individual of this species ; from Lyme-Regis. The 

 pentagonal intermedium is thrust up to articulate with 

 the femur; the arrangement of the other bones is pro- 

 bably incorrect. No history. 



32396. A bone which is apparently the right tibia of a comparatively 

 large individual ; from Lyme-Regis. 



Purchased. About 1857. 



R. 1174 a. A smaller bone of similar type ; from Lyme-Regis. 



No history. 



