TAB. IX. 



Fig. 



1. Litiopa papulosa, 7;r/^^ 88. 



a. front view. 

 /;. back view. 



2. Pyramidella lseviuscula,y.'. ll . 



a. front view. 

 h. back view. 



3. Odostomia plicata, p. 85. 



a. front view, var. a. 

 h. front view, var. /3. 



4. Odostomia pellucida, p. 86. 



n. front view. 

 J). l)ack view. 



5. Odostomia pupaj^^*. 86. 



n. back view. 

 h. front view. 



6. Odostomia similima (r), p. 87. 



a. front view. 



b. back view. 



Fig. 



7. Turritella incrassata, j/>>. 75. 



r^ front view, var. o, triplicata, 



from Coralline Crag. 

 h. front view, var. /3, vermicularis, 

 from Red Crag. 



c. front view, var. a, triplicata, 



from Red Crag. 



d. front view, var. 7, bicincta. 



8. Turritella clatliratulajj/;. 1^. 



8 a. magnified portion. 



9. Turritella communis, jy. 74. 



a. back view, var. from Mamma- 



liferous Crag. 

 h. front view, var. from Red Crag. 



10. Turritella imbricatariajj'j. 75. 



a, back view. 



h. back view of eroded specimen. 



11. Turritella planispira,^;. 76. 



Till' lines indicate the size of the specimens. 



