THE COLOURED PLATES. 



CHAPTER II. 



THE COLOURED PLATES, 



THE numbers inset are those of the land and fresh-water 

 species. The bringing of the bivalves to the front and 

 putting the pulmonates immediately after the chitons is not an 

 attempt at a new classification. It is simply the arrangement 

 which was eventually found convenient for the grouping of the 

 illustrations. 



PELECYPODA. 



PROTOBRANCHIATA. 



NUCULIDJE. 



Plate I. i. NUCULA SULCATA. 



2. NUCULA NUCLEUS. 



3. NUCULA NITIDA. 



4. NUCULA TENUIS. 



5. LEDA PYGM^A. 



6. LEDA LUCIDA. 



7. LEDA MINUTA. 



8. LEDA PERNULA. 



FILIBRANCHIATA. 



ANOMIACEA. 



ANOMIHXE. 



9. ANOMIA EPHIPPIUM. 



10. ANOMIA PATELLIFORMIS. 



ARCACEA. 



ARCAD.fi. 



11. ARCA PECTUNCULOIDES. 



12. ARCA OBLIQUA. 



13. ARCA LACTEA. 



14. ARCA TETRAGONA. 



15. ARCA NODULOSA. 



16. PECTUNCULUS GLYCIMERIS. 



17. LIMOPSIS AURITA. 



18. LIMOPSIS BOREALIS. 



