Mr. J. Lycett on the Upper Lias of Gloucestershire. 163 
trations of the Geology of Yorkshire’ under the name of Astarte 
lurida: the large anterior side and the small lunule mark the 
latter as a distinct species. 
Several examples of Astarte lurida were obtained in the upper 
portion of the Upper Lias in a mill-stream cutting at Holcomb ; 
it has also occurred very abundantly a little higher in the geo- 
logical scale, in the lower zone of the Cynocephala-stage at 
Nailsworth. D’Orbigny (‘ Prodrome’) places it in his “ Etage 
Bajocien,” which is probably an error; the English localities 
cited by him (Fox Hill and Taunton) are not Inferior Oolite ; 
nor does it appear that the latter formation, although so rich in 
the genus Astarte, has ever produced A. lurida. 
VOL. II. P 
