INDEX. 



73 



Nucleobranchiata, 8, 14, 

 29. 



Nudibranchiata, 8, 27, 28. 



Octopoda, 7. 



Octopus, 1,2,7,8,9, 10. 



vulgaris, 9. 



Oligochasta, 69, 70. 

 Olives, 7. 17. 

 Ominatostrephes, 3, 9. 

 Onciclium, 4. 

 Onustidae, 22. 

 Onustus, 22. 



Ophiacantha vivipara, 58. 

 Opbiuroidea, 5(5, 57,60, 



61. 

 Opisthobranchiata, 4, 8, 



14, 27. 

 Orange Cowry, 20. 

 Oreaster. 61. 

 Ormers, 23. 

 Orthoceras, 6. 

 Ostrea edulis, 45. 



gigas, 46. 



virginica, 46. 



Ostreidae, 45. 

 Ovulidae, 19. 

 Oyster. 1, 3, 5, 6, 8, 33, 



40, 45, 46. 



Paludina, 4. 



vivipara, 21. 



Paludinidse, 21. 

 Paper-Nautilus, 8, 9. 

 Patella eompressa, 25. 



mexicana, 25. 



mytilina, 25. 



vulgata, 24. 25. 



Patellae, 25. 

 Pearl-Oyster, 8, 41, 42, 



43. 

 Pearly Nautilus, 7, 8, 9, 



12. 

 Pecten. 3, 44, 45. 

 Pectinibrancliiata, 7. 

 Pectinida'. 44. 

 Peetunculus, 41. 

 Pedata, 62. 

 Pelecypoda, 3, 8, 33. 

 Pelmatozoq, 60. 

 Pentacrinus, 59. 



decorus, 60. 



Periwinkle, 7, 20, 21. 

 Perspective-shells, 18. 

 Pholadidse, 36, 37. 

 Pholas dact.ylus, 36. 

 Phoridre, 19. 

 Phorus, 22. 

 rhyllirhoe, 3. 

 Pliysa, 5. 



Piddocks, 8, 36, 37. 

 Pinna, 41, 43. 



pectinata, 42. 



Piscicola. 70. 

 Pisidium, 34. 

 Placunidae, 46. 

 Planaria, 65. 

 Platyhelminthes, 63. 

 Pleurotoma, 16. 

 Pleurotomatidre, 16. 

 Pluteus, 58. 

 Polychaeta, 69. 

 Polyplacophora, 7. 

 Polyzoa, 47. 

 Pond-. Mussel, 6. 

 Pond-Snails, 2. 31. 

 Pontobdella, 70. 

 P.mlp, 7. 

 Prosobranchiata, 7, 14, 



15. 

 Psolus, 62. 

 Pterocera, 22. 

 Pteropoda. 7, 13, 14. 

 Pulmonates, 8, 14, 20, 



30. 

 Pupillaea aperta, 25. 

 " Purples," 16. 

 Purpura, 16. 



Radius volva, 19. 

 Razor-shells, 2, 8, 33, 



38. 

 Rhynehonella, 48. 

 River-Mussels, 5, 8. 

 River-Snails. 21. 

 Rock-Limpet, 24, 2."'. .".2. 

 Rock-shells, 16. 

 Rock-Snails, 7. 

 Round-worms, 67, 69. 



Sabella, 6.9. 

 Sabellaria, 69. 

 Saddle-Oysters. 46. 

 Scalaria pretiosa, IS. 

 Scalariidse, 18. 

 Scallops, s. .^j, 38, 44, 45. 

 Scapharca, 41. 

 Scaphopoda, 8, 32. 

 Scorpion-shells. 22. 

 Screw-shells. 2i I 

 Scutibranchiata, 7. 

 Sea-Butterflies, 13. 

 Sea-Cucumbers, 53, 62. 

 Sea-Hare, 1, 8, 27. 

 Sea-Lemons, 8. 

 Sea-mouse, 69. 

 Sea- Slugs. 4, 53. 60. 

 Sea-Urchins, 53, 60, 62. 

 Sea-Woodlice, 25. 

 Semele. 34. 



Sepia, 3, 9, 10. 



officinalis, 9, 11. 



Serpula, 21, 69. 

 Ship-worm, 37. 

 Siphonaria, 32. 

 Siphonariidas, 30, 32. 

 Sipbonida, 8, 33, 34. 

 Sipunculus, 70. 

 Slipper-Limpets, 21. 

 Slit Limpets. 23. 

 " Slit-lips." 16. 

 Slug, 1,2,8,30,31,32. 

 Snail. 1, 2. 8,20,30, 32. 

 Solarium, 18. 

 Solenida?, 2, 38. 

 Solens, 39. 

 Solen siliqua, 38. 

 Spatangus, 56. 

 Sphaerium, 34. 

 Spider-elaws. 22. 

 Spirula, 8,9, 11, 12. 



peronii, 11. 



Spondvlida:. 44. 

 Squid.' 1, ".. 7, 8, 9, 10. 

 Stalked Crinoids. 58.60. 

 Starfishes, 53, 55, 56, 60, 



61, 62. 

 Stichopus variegatus, "i4. 

 Strombidse, 7. 21 , 22. 

 Strombus gi^as, 22. 

 Strongylus, 67. 

 Stylommatophora, 8. 

 Synapta, ."i4, 62. 



Tania, 63. 



■ solium, 64. 



Tapeworm. 63, 64. 

 Tectibranchiata. 8. 

 Tellens, 8, 34. 

 Terebratula. 47. 48. 

 Terebrida?, 16. 

 Teredinidas, 37. 

 Teredo norvegica, 37. 

 Testacella, 31. 

 Tetrabranchiata, 7, 9. 

 Thecalia concamerata, 



40. 

 Tlieeosomata. 7. 13. 

 Thorn-headedWorms, 69. 

 Thorny Oysters, 44. 

 Thread-worms, 65, 69. 

 Thysanozoon, li.">. 

 Tiger Cowrv, 19. 

 Tooth-shells. 8, 32. 

 Top-shells. 7. 2:i. 

 Trematoda, 63. 

 Trepang, 63. 

 Trichina spiralis, 68, 



69. 

 Trichina 1 . 69. 



