TAB. VII. 



Fis 



3. 



4. 

 5. 

 6. 



9. 

 10. 

 11. 



12. 



Pleurotoma \)orrecla, jniye 55. 

 a. front view. 

 L back view. 



Clavatula linearis, j*;. 56. 



a. magnified portion of ditto. 



Clavatula castanea, j^v. 57. 



a. magnified portion of ditto. 



Clavatula perpulchra, p. 58. 

 a. magnified portion of ditto. 



Clavatula Philberti, j). 57. 



a. magnified portion of ditto. 



Clavatula costata {:),/>. 58. 



a. front view of var. a. 



b. front view of var. /3. 



Clavatula mitrula, p. 59. 

 7 a. var. /3. 

 7 h. magnified portion of ditto. 



Clavatula brach)'stoma,/. 60. 

 a. magnified portion of ditto. 



Clavatula cancellata, J?;. 61. 



Clavatula nebula,/). 60. 



Clavatula concinnata, ^j. 61. 

 a. front view of var. o . 

 h. back view of var. j3. 



Clavatula laevigata (?),/. 62. 

 a. magnified portion of ditto. 



Fig. 



13. Clavatula turricida,/». 62. 



a. front view of var. a. 



b. front view of var. j3. 



14. Clavatula Trevellyanajj*;. 63. 



a. front view. 



b. front view of another specimen. 



1 5. Clavatula plicifera, j^- 64. 



16. Clavatula Boothii,/;. 63. 



1 7. Trichotropis borealis, p. 67. 



a. front view. 



b. back view. 



18. Cancellaria coronata,^;. 64. 



a. back view. 



b. front view. 



19. Cancellaria mitrteformis (?),7v. 65. 



a. front view. 



b. back view. 



20. Cancellaria subangulosa, ^j. Qij. 



a. front view of var. a. 



b. back view. 



a a. front view of var. /3. 



b b. magnified portion of ditto. 



21. Cancellaria costellifera, p. 66. 



22. Nassalabiosa,^. 28. 



The lines indicate the size of the specimens. 



