ICHTHYOSArRIT*^. ^ i 



46473 a. A smaller centrum of a posterior dorsal vertebra, agreeing 

 in characters with the preceding ; from the Kimeridge 

 Clay of Foxhangers, near Devizes, Wiltshire, 



Cunnington Collection. Purchased, 1875. 



41776 a. Two associated centra of posterior dorsal vertebras ; from 

 the Kimeridge Clay of Weymouth. These specimens 

 agree with the last, but their contour is somewhat altered 

 by crushing. Purchased. 



20285. The centrum of a caudal vertebra ; from the Kimeridge 

 Clay of Ely, Cambridgeshire. Vertical diameter 0,093 

 (3-65 inches), transverse 0,091 (3-58 inches), length 0,038 

 (1*5 inches). Purchased. 



24684 e. The centrum of a large anterior caudal vertebra, apparently 

 associated with 2so 24681 d. This specimen agrees with 

 Phillips's description of the 50th vertebra, but the length 

 is less. Cunnington Collection. Purchased, 1849. 



24684 f. A rather later caudal centrum, probably associated with 

 the preceding. The costal articulation has here become 

 circular. Cunnington Collection. 



41801. The centrum of a smaller anterior caudal vertebra, specifically 

 indistinguishable from the preceding ; from the Kimeridge 

 Clay of Ely. This speeimen agrees very closely in all 

 respects with the one figured by Phillips, op. cit. p. 337, 

 diagram exxviii. figs. 1, 2. Purchased, 1869. 



41776 b. A rather later caudal vertebra ; from the Kimeridge Clay 

 of Weymouth. Purchased, 1869. 



R. 1341. A very similar centrum; from the Kimeridge Clay of 

 Shotover. The reference of this and the following speci- 

 men is provisional. No history. 



46473 b. A smaller caudal centrum of similar type ; from the 

 Kimeridge Clay of Eoxhangers. Purchased, 1875. 



24684 g. A caudal centrum, associated with the dorsals, jSo. 246S4 a. 

 This specimen is considerably larger than either of the 

 preceding. Purchased, 1849. 



It is probable that some of the following specimens belong 

 to this species. 



41958. A left coracoid ; from the Kimeridge Clay of Weymouth. 

 There is no posterior notch, and the specimen differs 



