CONTENTS OF VOL. I. 



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Page 



Introductory Remarks 1 



Class 1. Cephalopoda 9 



Class 2. Gasteropoda 24 



Family 1. Convoluta 31 



2. Columellata 44 



3. purpurifera 54 



4. Alata 86 



5. Canalifera 94 



6. Parasitica 127 



7. Turbinacea 129 



8. Plicacea 151 



9. Ianthinea 154 



10. Neritacea 156 



11. Peristomata 165 



12. Melaniana 172 



13. Lymn^eana 177 



14. auriculacea 181 



15. Cyclostomacea 184 



