INDEX. 



231 



Fig. Page 



Plate 



Magdala, 18 



Mag'ilus, 19 



Malleus, 15 



Marginella, H 



Melania, 13 



Melanopsis, 13 



Meleagrina, 15 



Melonia, lo 



Miliola, 10 



Mitra, 11 



Modiola, 15 

 MOLLUSCA, 



Monoceros, 11 



Monodonta, 12 



MONOMTAKIA, 

 MOLTIVALVE SHBLtS, 5 



Murex, 8 



Murex, ii 



Mya, 5 4 36 



Mya, 18 6 161 



Myatella, 16 12 & 30 162 



Mysia, 17 6 150 



Mytilus, 2 4 45 



Mytilus, 



27 



mi 



174 



131 



79 



101 



101 



130 



72 



72 



80 



133 



65 



83 



92 



122 



33 



53 



86 



N. 



Natica, 



Nautilus, 



Nautilus, 



NaviceUa, 



Nerita, 



Nerita, 



Neritina, 



Neritoides, 



Nodosaria, 



Nucula, 



Nummulites. 



OUva, 



Onchidium, 



Orbicula, 



Orbiciilina, 



OrbuUtes, 



Orthocera, 



Ortygia, 



Ostrea, 



Ostrea, 



Otiuii, 



Ovula, 



Paludina, 

 Paiiopsea, 

 Pandora, 

 ParmaceUa, 



o. 



Parmophorus, 



Patella, 



Patella, 



Pecten, 



Pectinaria, 



Pectunculus, 



Pedum, 



Peddnculata, 



Perna, 



Petricola, 



Phasianella, 



Philliroe, 



Pholas, 



Pholas, 



Physa, 



Pileopsis, 



Pinna, 



Pinna, 



Pirena, 



Pisidium, 



Placentula, 



Plagiostomaj 



Planaria, 



Planaxis, 



Planorbis, 



Pleurobranchus, 



Pleorotoma, 



Plicatula, 



Podopsis, 



Pollicipes, 



Polystomella, 



Psammobia, 



Psammotaea, 



Pterocera, 



Pteropoda, 



Pterotrachea, 



Pupa, 



Purpura, 



Pyramidella, 



Pyrgoma, 



Pyrula, 



Radiolites, 



Ranella, 



Renulina, 



Retusa, 



Ricinula, 



Rotulites. 



Sabella, 



Sabellaria, 



Sanguinolaria, 



Scalaria, 



Scalpellum, 



Sedentabia, 



36 61 

 22 177 

 15 153 

 20 94 

 4 169 

 173 



