LAMARCK S DIVISIONS OF 



Linnean Genera. 



19. Nautilus 



20. Conus 



'21. Cypraea Cypraea 



^Bulla.. 



Lamarckian Genera 



pNautilus 



Orthoceras 



/ Nodosaria 



[ Spirula 



[^Cristellaria 



Conus 14 



22. Bulla 



24. Buccinum 



23. Voluta < 



Plate. 

 13 

 13 

 13 

 13 

 14 

 —16 

 17 

 18 

 18 

 34 

 18 

 18 

 18 

 18 



21 

 19 

 18 

 19 

 21 

 20 

 20 

 21 

 20 



19 



19 



Buccinum 22 



Concholepas 22 



Phasianella 



Cassidaria 



Cassis , 



< Purpura .,, 



Monoceros 



Harpa 



Dolium 22 



Eburna 23 



Terebra 24 



BulL-a 



Bulimus ... 



Achatina .. 

 j Physa .... 

 1 Ovula .... 

 (^Terebellum 



pVoluta 



I Auricula . . 

 Ancilla .... 

 Tornatella 

 Turbinella 

 Cancellaria 

 Columbella 



Mitra 



Marginella 

 Volvaria . . 

 Oliva 



Figure. 



1 



24 



27 



16 



47 



1—155 



1—67 



20 



14 



101 



53 



37 



1 



41 



175 

 1 



44 

 13 



160 

 71 

 74 



144 

 64 

 59 

 29 

 37 

 56 

 96 

 9 

 14 

 53 

 54 

 49 

 6 

 77 



129 



