Explanation of Plate. 411 



through the kindness of Mr. M. M. Schepmann, and lastly, 

 to the Rev. Alfred H. Cooke, of Cambridge, and Mr. H. M. 

 Gwatkin, for valuable information concerning the dentition 

 of the genus, I have already expressed my great indebtedness. 

 A few of the shells described by M. Tapparone-Canefri, 1 

 have been sorry not to have been able to examine, in these 

 cases I have had to draw my conclusions from plates and 

 descriptions. 



EXPLANATION OF PLATE. 



1. Peristernia annulata (A. Ad.). 



2. Latirus Cayohuesonicus (Sowb.). 



3. Do. distindus (A. Ad.). 



4. Peristernia mannophora (Melvill). 



5. Do. flavida (A. Ad.). 



6. Do. hilaris (Melvill). 



7. Do. Selince (Melvill). 



8. Do. Smithiana (Melvill). 



9. Do. cremnochione (Melvill). 



10. Do. Iniuensis (Melvill). 



11. Latirus Eppi {^^ySS!C). 



12. Peristernia canthariformis (Melvill). 



13. Do. retiaria (Melvill and Schepmann), 



14. Latirus tumens (Carpenter). 



15. Peristernia leucoihea (Melvill). 



16. Latirus formosior (Melvill). 



