INDEX. 



229 



Mesodon, 196. 

 Metaptera, 23. 

 Microyoldia, 15. 

 Modiola, 33, 40. 

 Modiolaria, 33. 

 Modiolus, 33. 

 Molleria, 87. 

 Monoculus, 156. 

 Monodonta, 26. 

 Montacuta, 66, 67. 

 Montagua, 162. 

 Mulinia, 77. 

 Murex, 126, 131, 139. 

 Musculium, 48. 

 Musculus, 33. 

 Mya, 22, 27, 38, 41, 77. 

 Myrtaea, 61. 

 Mysella, 67. 

 Mytilimeria, 39. 

 Mytillus, 33. 

 MytUus, 32. 



Nassa, 133. 

 Natica, 105. 

 Nautilus, 192, 220. 

 Neaera, 40. 

 Neptunea, 136, 137. 

 Neptunella, 138. 

 Nerita, 107. 

 Neverita, 105. 

 Nicania, 45. 

 Niobe, 161. 

 Noetia, 18. 

 Nucella, 132. 

 Nucula, 11. 



Octopus, 222. 

 Odostomia, 92, 97, 213. 

 Omalaxis, 120. 

 Ommastrephes, 218. 

 Omphalina, 4, 198. 

 Onchidoris, 174. 

 Onoba, 118. 



Onychoteuthis, 218. 

 Opalia, 104. 

 Osteodesma, 38. 

 Ostrea, 20, 29. 

 Oxinoe, 109. 

 Oxygyrus, 130. 



Paedoclione, 160. 

 Palio, 172. 

 Pallifera, 206. 

 Palliolum, 30. 

 Paludestrina, 115. 

 Paludina, 111, 114. 

 Pandora, 37. 

 Pandorina, 38. 

 Panomya, 79. 

 Panopaea, 79. 

 Parasira, 222. 

 Pasithea, 127. 

 Patella, 85, 109. 

 Patula, 207. 

 Pecchiolia, 39. 

 Pecten, 28. 

 Pectunculus, 17. 

 Peracle, 159. 

 Periploma, 36. 

 Petricola, 71. 

 Phacoides, 61. 

 Phasianella, 99. 

 Philine, 151. 

 Philomycus, 206. 

 Pholadomya, 35. 

 Pholas, 79. 

 Physa, 179. 

 Pisidium, 51. 

 Placobranchus, 161. 

 Placopecten, 29. 

 Placophora, 10. 

 Plagioctenium, 29. 

 Planogyra, 207. 

 Planorbis, 188, 208. 

 Plaxiphora, 10. 

 Pleurobranchaea, 154. 

 Pleurotoma, 140, 142, 144. 



