Fig. 11. Dyscritella nana sp. nov. 
Outline of zoarium, x P3. Page 179. 
Fig. 12. Stenopora obliqua sp. nov. 
Diagrammatic aspect of longitudinal section, x 1’2. Page 159. 
Fig. 13. Tabulipora idexfordensis sp. nov. 
Diagrammatic aspect of longitudinal section, x P2. Page 174. 
Fig. 14. Leioclema avonense sp. nov. 
Diagrammatic aspect of longitudinal section, x P3. Page 177. 
Fig. 15. Leioclema avonense sp. nov. 
Transverse section x 8. From the lower portion of the Avon Section, Zone Kl. [Slide 
G. W. L. 213.] Page 177. 
Fig. 16. Leioclema avonense sp. nov. 
Tangential section x 8. The same specimen as the preceding. [Slide G. W. L. 211.] 
Page 177. 
Fig. 17. Koninckopora inflata (de Koninck). 
Portion of peripheral region of longitudinal section x 20. From Vise, Belgium. 
Original in British Museum (Nat. Hist.), Slide 90^9 Page 132. 
Fig. 18. Koninckopora inflata (de Koninck). 
Small portion of surface slightly ground down, x 20. The same specimen as the 
preceding. Page 182. 
(Note. —Owing to difficulties of reproduction, the lines in the axial region are relatively too 
coarse in figures 4A—4D, 5A—5D, 6, 7, 8,10, 12 and 13.) 
