PLATE XXXIV. 



CARBONIFEROUS SPECIES. 



Fig. 



1. Productus striatus, Fischer. Carboniferous limestone, Longnor, Derbyshire. 



Museum of Practical Geology. 



2. „ „ Limestone, Settle, Yorkshire. 



3. „ „ „ Derbyshire. 



45. M „ „ „ Malformations. Museum 



of Practical Geology. 



6. „ carbonarius, Be Koniuck. Carboniferous limestone north of 



Glasgow. Museum of Practical 

 Geology. 



7. „ uudatus, Befrance. Derbyshire. Collection of Dr. Fleming, of 



Manchester. 



8. „ „ Limestone, Poolwash, Isle of Man. 



9. „ „ „ Settle, Yorkshire. 



10, 11, 12. „ „ „ Campsie, Stirlingshire. 



13. „ „ P. tortilis, M'Coy. Limestone, Tullanaguiggy, 



Fermanagh, Ireland, and collection of Sir R. 

 Griffith. 



14. „ tessellatus, Be Koninck. Limestone, Kildare. British Museum. 



15. 16. „ Keyserlingianus, Be Koninck. Limestone, Settle, Yorkshire. 



17. „ arcuarius, Be Koninck. Limestone, Settle, Yorkshire. 



18. „ spinulosus, Sow. The original specimen. Linlithgowshire, Scotland, 



and collection of the late Dr. Fleming. 



19. „ „ From the Carboniferous limestone near Lesmahago, and 



collection of Dr. Slimon. 



20. „ P. granulosus, Phillips. Carboniferous limestone, Settle, 



Yorkshire. 



21. „ „ Phillips's figure of P. granulosus. 



