PLATE III. 



Figs. pagb 



1. Conularia aoronata, sp. nov. British Museum (Nat. Hist.), no. 



G. 17660 . . . . . .23 



1 a. Compressed specimen from the Lower Llandeilo Rocks of Ritton Castle, 

 showing one nearly complete face and one half face. 1 b. Marginal 

 groove. X 5. lc. Ornamentation, x 20. 



2 — 6. Conularia quadrimlcata, Sowerby . . . .25 



2. Specimen from the Carboniferous Limestone of Staffordshire in the private 



collection of Sir Thomas Wardle. 



3. Flattened specimen from the Coal Measures, Salop. British Museum (Nat. 



Hist,), no. 3448. 

 4 a. Specimen from Carluke, Glasgow. Museum of Practical Geology, no. 

 11903. 4 b. Ornamentation near the apex, x 20. 



5. Ornamentation of a specimen from the Coal Measures, Coalbrookdale. 



X 20. 



6. Aperture of a small specimen from Coalbrookdale. x 2. 



7, 8. Conularia globosa, sp. nov. Museum of Practical Geology . 27 



7 a. Specimen from the Carboniferous Limestone of Avon Gorge. 7 b. Cross- 

 section just below fracture. 7 c. Cross-section of septum. 7 d. Ornamenta- 

 tion, x 20. (No. 11909.) 



8. Young specimen from the same horizon at Tortworth. (No. 11911.) 



9 — 11. Conularia hispida, sp. nov. . . . .28 



9 a. Specimen from the Wenlock Limestone near Dudley. 9 b. Ornamenta- 

 tion, x 10 British Museum (Nat, Hist,), no. G. 10041. 



10. Cross-section of another specimen from Ledbury. British Museum (Nat, 



Hist,), no. G. 11796. 



11. Ornamentation of a specimen from the Upper Bala of Thraive Glen, 



Girvan, showing the pear-shaped tubercles. x 20. Mrs. Gray's 

 Collection. 



12. Conularia triangularis, sp. nov. British Museum (Nat. Hist.), 



no. 866 . . . . . .28 



12 a. Imperfect specimen from the Wenlock Limestone of Dudley. 12 b. 

 Cross-section. 12 c. Marginal groove, x 10. 12 d. Ornamentation, 

 x 20. 



