PLATE VII. 



Figs. 1 3. NODOSINELLA DioiTATA, nov. (Page 103.) 



Various Permian specimens -a lateral aspect, 6 end view. Magnified 30 

 diameters. 



Figs. 4 7. NODOSINELLA CYLINDRICA, nov. (Page 104.) 



Figs. 4 6. Various Carboniferous specimens. X 35 diam. 

 Fig. 7. Larger specimen partially broken, showing the labyrinthic structure of 

 the test. X 30 diam. 



Figs. 8, 9. NODOSINELLA PRISCILLA (Dawsori). (Page 105.) 



Figs. 8, 9. Copied from Dr. Dawson's figures of Canadian Carboniferous 

 specimens, slightly enlarged. X 10 diam. 



Fig. 10. Doubtful Permian specimen, perhaps more nearly allied to N. digitata. 

 X 30 diam. 



Figs. 11 15, NODOSINELLA CONCINNA, nov, (Page 106.) 



Various forms from the Yoredale Rocks of Swaledale. X 50 diam. 



Figs. 24, 25. NODOSINELLA LINGULINOIDES, nov. (Page 106.) 

 Lateral aspect. Carboniferous specimens. X 35 diam. 



Figs. 16 21. STACHEIA MARGINULINOIDES, nov. (Page 112.) 



a represents the lateral aspect, b the superior end-view in all the figures. 

 Figs. 1618,20,21. X 50 diam. Fig. 19. X 35 diam. All Carboniferous 

 specimens. The terminal segment of fig. 18 is entirely closed in, and the 

 specimen presents no aperture at the superior end. 

 Fig. 21. Longitudinal section, showing the subdivision of the chambers. 



Figs. 22, 23. Straight, compressed specimens, probably of the same species. 

 X 50 diam. (Page 106.) 





