PLESIOSATJMDiE. 199 



remaining portion of the distal extremity 0,254 (10 inches). 

 The specimen has, however, been broken and mended with 

 plaster, and the length is probably at least one inch too 

 long. On p. 316 of Phillips's < Geology of Oxford ' it is 

 stated, on the authority of the Earl of Enniskillen, that 

 this specimen was obtained from the Oxford Clay ; but 

 this is in all probability incorrect, since no similar femora 

 are known from that horizon, nor are there vertebra? of 

 sufficient size to have belonged to such a specimen. In 

 Owen's description the locality is erroneously given as 

 Shotover. Owing to the incorrect labelling of this speci- 

 men it was regarded by Hulke as the type of Pliosaurus 

 brachydirus. Purchased, 1859. 



40107 a. A somewhat smaller left femur, associated with No. 40106. 



(Fir/.) Figured by Hulke, in the ' Quart. Journ. Geol. Soc' 

 vol. xxvi. pi. xli. figs. 1, 2, as a humerus. The postaxial 

 border of the distal extremity is imperfect. The length 

 is 0,508 (20 inches), or slightly less than that of the 

 associated humerus. 



Presented by J. O. Mansel-Pleydell, Esq., 1870. 



40107 b. The distal extremity of the right femur of the same 



individual, in a somewhat imperfect condition. 



Presented by J. C. Mansel-Pleydell, Esq., 1870. 



40108 a. A series of distal bones of the paddles, probably associated 



with the preceding. 



Presented by J. O. Mansel-Pleydell, Esq., 1870. 



31795. The right femur, with the postaxial portion of the distal 

 expansion wanting ; from the Kimeridge Clay of Shotover. 

 Noticed by Hulke in the 'Quart. Journ. Geol. Soc.' 

 vol. xxvi. p. 020, where, owing to its labelling, it is 

 stated to be the type of the species, which, however, is not 

 the case. Its resemblance to No. 40107 a, which is 

 slightly larger, is pointed out in that notice. 



PnrcJiased, 1859. 



11900. The distal extremity of a large humerus or femur, not impro- 

 bably belonging to this species : from the Kimeridge Clay 

 of Newport-Pagnall, Buckinghamshire. This specimen 

 was presented in L835 1<> Dr. Mantel! by the Rey. John 

 Prettyman. Mantell Collection. Purchased, L838. 



