INCEET^l SEDIS. 41 



42376 a. A similar bone. Purchased, 1870. 



R. 562. A similar bone. Purchased, 1886. 



41886. A similar bone. Purchased, 1869. 



41887. A similar bone, imperfect. Same history. 

 43034. The distal extremity of the ulnar metacarpal. 



Purchased, 1871. 



44183. The distal portion of an homologous bone. The accessory 

 lateral ossification is well shown. Purchased, 1873. 



R. 561. The distal extremity of a smaller example of the homologous 

 bone. Purchased, 1886. 



43571. Three fragments of phalangeals of the ulnar digit of the 

 manus. Purchased, 1872. 



43571 a. An imperfect undetermined long-bone. Same history. 



Species 6. 

 Pterodactylus pleydelli, Owen 1 . 



Said to be distinguished from the preceding form by its some- 

 what inferior dimensions. 

 Hah. Europe (England). 



42378. The distal portion of the left humerus ; from the Kimeridge 

 {Fig.) Clay of Weymouth, Dorsetshire. This specimen is the 

 type, and is figured by Owen, op. cit. pi. i. figs. 15, 16. 



Purchased, 1870. 



42374. The proximal extremity of the first phalangeal of the ulnar 



(Fig.) digit of the manus ; from Weymouth. Eigured by 



Owen, op. cit. pi. i. figs. 22, 23, and provisionally referred 



to this species. Same history. 



41404, 41884, 41885, 41971, 42374, 44182. Six apparently 

 similar specimens ; from Weymouth. Purchased. 



Species c. 



Of considerably larger size than either of the preceding forms. 

 Hab. Europe (England). 



41179. The distal extremity of the ulnar metacarpal ; from the 

 Kimeridge Clay of Weymouth, Dorsetshire. The dia- 

 meter across the condyles is 0,016, against 0,008 in 

 No. 44183 (Species a). Purchased, 1868. 



1 Mesozoic Eeptilia (Mon. Pal. Soc), pt. i. p. 9 (1874). 



