SHELLS OF THE WENLOCK SHALE. 



633 



Loc. Stumps Wood, near Malvern ; Tynewidd. 

 Better ophon Wenlockensis, f. 21, (M. C. t. 460.) This specimen differs a little from the species of 

 the Carboniferous Limestone figured in M. C, but it is difficult to indicate a real difference 

 owing to the calcareous spar having taken the place of the shell. We assign it provisionally 

 the name of B. Wenlockensis. 

 Loc. Wenlock ; Croft, Malvern. 



Several of the shells, figured as belonging to the Wenlock shale, may be classed either with the 

 Wenlock or Caradoc formation. They, in truth, belong to the beds of passage between the Upper 

 and Lower Silurian Rocks, and are therefore common to both, (Ex. Tynewidd, near Llandovery, 

 &c.) 



