﻿PLATE XXIV. 



1 . Rhynchonella flexistiria, Phillips. — T. tumida, Phillips. From the original figure, 



'Geology of Yorkshire,' tab. 12, fig. 35. 



2. — — A very fine specimen from the Carboniferous limestone of 



Clitheroe, and collection of Mr. M. Parker. 



8. — — From Phillips's original specimen of T. tumida, British 



Museum. Bolland. 



4. — — From Millecent, Ireland. 



5. — — = Ph. heteroplyclia, M.'Coy. * British Palaeozoic Fossils,' 



tab. 3 d, fig. 19. 



6. — — From Professor Phillips's original specimen, T. flexistria. 



Bolland. British Museum. 



7. — — From Professor Phillips's figure of T. flexistria, 1 Geology 



of Yorkshire,' tab. 12, figs. 33, 34. This was 

 not very correctly drawn in the work last men- 

 tioned : fig. 6 of our plate is a more correct repre- 

 sentation. 



8. — — From Bolland. A curious variety. A careful exami- 



nation of the specimens, figs. 1 to 8, leads me 

 to believe that they are all referable to a single 

 species. 



9. 10. Camarophoria globulina, Phillips, var. rhomboida, Phillips. From tab. 12, 



figs. 18, 19, 20, of the 'Geology of Yorkshire,' 

 and Carboniferous limestone of Bolland. 



11, 12. — — Two specimens from the Bolland district and British 



Museum. I believe the example, fig. 12, to be 

 the original specimen on which Phillips's T. 

 rhomboida was founded. 



1 3, 14. — — T. seminula, Phillips's ' Geology of Yorkshire/ tab. 



12, figs. 21—23. 



15, 16. — — Were, drawn from Phillips's original specimen of 



T. seminula. Carboniferous limestone. Bolland 

 district. British Museum. It appears to me 

 that T. seminula is the fry or young of T. 

 rhomboida, Phillips ; and this last is, to all ap- 

 pearance, the same as the Permian C. globulina. 



17. — — Ph. longa, in M'Coy's 'British Palaeozoic Fossils,' pi. 



3 d, fig. 24. 



18 — 22. — — Different specimens and varieties from the Carbo- 



niferous limestone of Longnor, in Derbyshire. 



23 — 25. Rhynchonella ? trilatera, Be Koninck. From the Carboniferous limestone of 



Derbyshire. British Museum. 



26. — — From the Carboniferous limestone of Alstonfield. 



Museum of Practical Geology. 



