PLATE XXIX. 



CARBONIFEROUS SPECIES. 



Fig. 



1. Orthis resppinata, Martin. From the Carboniferous limestone of Bolland. 



British Museum. 



2. „ ,, A very large example from Yorkshire. 



3. ,, ,, A globose variety from Withgill, in Yorkshire, and col- 



lection of Mr. Parker, of Manchester. 



4. „ „ Another example, seen from the front. 



5. ,, ,, var. gibbcra, Portlock. Prom the lower limestone of 



Cornacarrow, Enniskillen, and collection of Sir R. 

 Griffith. 



0, 7. „ ,, var. connivens, Phillips. Carboniferous limestone of 



Little Island, near Cork, Ireland, and collection of 

 Sir R. Griffith. 



