EXPLANATION OF PLATE XVI. 
( Fig. 1. Tabulipora sparsitabulata sp. nov. 
Longitudinal section x 10. From Wood Park, near Wark, Northumberland. [Specimen 
25578, slide G. W. L. 178.] Page 171. 
Fig. 2. Tabulipora atf. sparsitabulata sp. nov. 
Tangential section x 15. The same specimen as in Fig. 30, Plate xv. [Slide 
G. W. L. 187.] Page 172. 
Fig. 3. Tabulipora multitabulata sp. nov. 
Longitudinal section x 10. From the Carboniferous Limestone near Stockdale Farm¬ 
house, Settle district. [Specimen Rh. 2247, slide G. W. L. 174.] Page 173. 
Fig. 4. 1 Tabulipora multitabulata sp. nov. 
Tangential section x 20. The same specimen and slide as the preceding. 
Fig. 5. Tabulipora crassimuralis sp. nov. 
Longitudinal section x 10. From a bed belonging probably to the C zone, Stackpole. 
[Specimen E. D. 998, slide G. W. L. 177.] Page 172. 
Fig. 6. Tabulipora crassimuralis sp. nov. 
, Tangential section x 10. The same specimen and slide as the preceding. 
Fig. 7. Tabulipora wexfordensis sp. nov. 
Longitudinal section x 10. From the Lower Limestone of Hook, Wexford, Ireland. 
The original in the Collections of the Geological Survey of Ireland. [Slide G. W. L. 182.] 
Page 174. 
Fig. 8. Tabulipora debilis sp. nov. 
Transverse section x 10. From the Carboniferous Limestone of Stebden Hill, Cracoe, 
near Skipton, Yorkshire. The original in the Nicholson Collection. [Slide G. W. L. 189.] 
Page 175. 
Fig. 9. Dyscritella miliaria (Nicholson). 
Tangential section x 30. From the Redesdale Ironstone Shale. The specimen is from 
the Nicholson Collection. [Slide G. W. L. 169.] Page 178. 
Fig. 10. Dyscritella miliaria (Nicholson). 
Longitudinal section x 30. The same specimen and slide as the preceding. 
Fig. 11. Dyscritella ambigua sp. nov. 
Longitudinal section x 20. From the top of the Carboniferous Limestone at Penwyllt, 
South Wales. [Slide G. W. L. 202.] Page 181. 
Fig. 12. Dyscritella ambigua sp. nov. 
Tangential section x 20. The same specimen as the preceding. [Slide G. W. L. 201.] 
Page 181. 
Fig. 13. Dyscritella multifida sp. nov. 
Longitudinal section x 10. From the Lower Limestone, one and a half miles N. of 
Croagh, Townland of Cloonoul, Limerick. The original in the Collections of the Geological 
Survey of Ireland. [Specimen 936°, slide G. W. L. 207.] Page 180. 
Fig. 14. Portion of the preceding, x 20. 
Fig. 15. Dyscritella multifida sp. nov. 
Tangential section x 20. The same specimen as the preceding. [Slide G. W. L. 206.] 
Page 180. 
