TAB. VIII. 



Fig. 

 1. 



6. 



7. 



9. 



10. 



Cerithium tricinctum ()),pa(/e 69. 

 1 a. front view of specimen! fi'om 



Mammaliferous Crag. 

 1 h. front view of specimen from 



Red Crag. 



Cerithium tricinctum (?), back view of 

 eroded specimen from Red Crag. 



Cerithium variculosura, /*. 69. 



3 a. magnified portion. 



Cerithium trilineatum,7>'. 70. 



4 a. apex magnified. 



Cerithium tuberculare, jy. 70. 



5 a. magnified portion. 

 bh. var. subulatum. 



5 c. „ nanum. 



Cerithium metaxa {'t),p. 71. 



6 a. magnified portion. 



Cerithium cribrarium, j?;. 71. 



7 a. back view. 



7 b. front view, another specimen. 

 7 a a. magnified portion. 



Cerithium adversum, p. 72. 

 8«. magnified portion. 



Cerithium granosum,/*. 73. 



Cerithium perpulchrum, jO. 72. 

 10 a. magnified portion. 



Fig. 



1 1 . Scalaria Groenlandica, p. 90. 



11 a. back view, var. n. 

 W h. front view, var. |3. 



12. Scalaria fimbriosa,^;. 91. 



13. Scalaria hamulifera, J!;. 91. 



14. Scalaria varicosa, ^;'. 90. 



15. Scalaria frondosa,/i. 92. 



16. Scalaria frondicula, /;. 92. 



17. Scalaria foliacea, />. 93. 



18. Scalaria subulata, />. 93. 



19. Scalaria clathratula, /. 94. 



1 9 a. front view. 

 19 3. back view. 



a a. magnified portion. 



20. Scalaria Trevellyana, p. 94. 



21. Scalaria obtusicostata, /J. 95. 



22. Scalaria cancellata, jy. 95. 



22 a. magnified portion. 



23. Fossarus sulcatus, JO. 120. 



23 a. front view, var. a. 

 23 b. back ^'iew. 



23 a f/. magnified portion. 



23 c. back view, var. lineolatus. 



23 d. front view. 



The lines indicate the size of the specimens. 



