158 CARBONICOLA, ANTHRACOMYA, AND NAIAD1TES. 



■"). West-Lancashire Coal-field — St. Helen's. 



Lyons Delf 



London Delf 



Potato Delf 



Earthy Delf 



Main Delf 



Canine! 



4-foot Mine 



Pigeon-house Coals < 



Ravenhead 



Delf s | 



Hast ion Delf 



Roeer Coal 



Flaggy Delf 



Roarer of Whiston Main Coal 



Cockle-shell Bar 



Rushey Pari 



Arley Mine 



With numerous examples of Carbonicola nucularis. 



With Carbonicola robusta. 



