12 



Fig. 

 16 



Bulla striata 19 



21 

 22 



Bulla fragilis 23 



25 



Bulla fasciata 27 



28 



PyrulaFicus 29 



30 



Pyrula papyracea 31 



Achatina Glans 34 



fusco-lineata 35 



36 



Physa fontinalis 37 



38 



Physa Hypnorum 39 



Terebellum subulatum 41 



42 

 43 



Ancillaria Candida 44 



Achatina virginea 45 



Vexillum 46 



49 

 50 



Achatina Priamus 51 



Bulimus undatus 52 



Achatina Perdix 53 



purpurea 54 



-bicarinata 55 



Bulla solida 56 



57 

 58 

 59 

 60 

 61 



VOLUTA. PI. 19. Fig. 



Auricula Midae 

 - Judaj 



3 



4 



5 



Auricula Sileni .................. 6 



7 

 8 

 9 



10 

 Tornatella fasciata ............ 11 



. - flammea ............ 12 



solidula ............ 13 



14 

 Auricula coniformis ............ 15 



16 

 Auricula Monile ............... 17 



18 



19 

 Auricula nitens ............... 20 



21 



22 



23 

 25 

 27 

 28 

 Oliva porphyria ............... 29 



- erythrostoma' ............ SO 



31 



32 



Oliva leucophaea ............... 33 



34 

 35 

 36 



Oliva Utriculus . 37 



