﻿PLATE XXV. 



1. Camarophoria ? isorhyncha, M'Coy. From the Carboniferous limestone of Cooks- 



town, Tyrone, Ireland ; and collection of Sir R. 

 Griffith. 



2. — — From M'Coy's figure in the ' Synopsis of the Carboni- 



ferous Fossils of Ireland/ tab. 18, fig. 8. 



3. Camarophoria crumen a, Martin. Sp. 'Petrif. Derb./ tab. 36, fig. 4. Carboni- 



ferous limestone of Derbyshire. 



4. — — From Settle, Yorkshire. 



5. — — From West Lothian, Scotland. Collection of the late Dr. 



Fleming. 



6. — From the Carboniferous limestone of Dovedale, Derbyshire, 



and Museum of Practical Geology. 



7, 8. — — From Settle, Yorkshire. 



9. — — From Bolland. British Museum. This series of speci- 



mens or figures illustrates the variation in the number of 

 ribs on the mesial fold. 



10. Camarophoria ? proava, Phillips. From the original specimen in the British 



Museum. It is, however, uncertain whether this 

 specimen belongs to the genus Camarophoria, and 

 whether it may not be specifically the same, but an 

 exceptional shape of C. crumena. 



11. 12. Camarophoria ? or Rhynchonella ? laticliva, 31' Coy. 'British Palaeozoic 



Fossils/ tab. 3d, figs. 20, 21. 



13. Rhynchonella ? semisulcata, M'Coy. ' Synopsis of the Carboniferous Fossils of 



Ireland/ tab. 22, fig. 15. Walterstown, Skreen, 

 Ireland. May not this belong to the same 

 species as Eh. proava, Phillips ? 



14. Rhynchonella lateralis, Sow., 'Min. Con./ tab. 83, fig. 1. 



15. — nana, M'Coy. 'Synopsis of the Carboniferous Fossils of Ireland,' 



tab. 23, fig. 19. Rahoran, Ireland. 



16. Streptorhynchus crenistria, Var. Radialis, Phillips. From the Carboniferous 



limestone of Whatley, near Frome, 

 Somersetshire. British Museum. 



17 } is. — — From Gare, in Lanarkshire, Scot- 



land. 17a, interior of the ventral 

 valve ; 18a, interior of the dorsal 

 valve. 



19 — — Var. Arachnoidea, Phillips ' Geol. of York- 



shire/ PI. II. fig. 4. 



20. — — In Sandstone at Haltwhistle, from a 



specimen in the collection of 

 Professor Phillips. 



21. — — From Rutchugh, Northumberland. 



Similar specimens occur in the 

 Kildress red sandstone. 



