— 200 — 
Phasianella Lmck. 
Phasianellinæ ... 
Philine Ascan.. 
Philinidæ .. 
Pholadidæ .. 
Pholadinæ .. 
Pholas Lin. 
Phos Mft. 
Pileopsidæ . 
Pileopsis Lmck. 
Pinna Lin.. 
Pirena Lmck. 
PisaniaBiv.. 
PisidiumPfr. 
Placuna Sol. 
Planaxidæ . 
Planaxis Lmck. 
Planorbiinæ . 
Planorbis Guett. 
Pleur obranchidæ . 
Pleur obranchinæ . 
Pleurobranchus Cuv. 
Pleurocera Rfq. 
Pleuroceridæ . 
Pleurotoma Lmck.. 
Pleurotomidæ . 
Pleurotominæ . 
Plicatula Lmck. 
Pliodon Conr. 
Pollia Gray. 
Polydonta Schmch. 
Pomatiopsinæ . 
Pomatiopsis Trvon. 
Potamides Brug. 
Potamidinæ . 
Prasina Desh. 
Psammobia Lmck. 
Pterocera Lmck. 
Ptéropodes . 
PuLMONÉS . 1 
Purpura Brug. 
Pyramidea Sow. 
Pyramidelliidæ . 
Pyrae;us Mft. 
Pyrgula Grist. et J. 34 
Pyrula Lmck. 60 
Radulidæ ... 190 
Ranella Lmck. 67 
Rangia Des ml. 154 
Rapana Schmch. 74 
Rhynchonella Fschr. 194 
Rhynchonellidæ . 194 
RicinulaLmck. 73 
Ringicula Desh. 94 
Risella Gray. 117 
Rissoa Fremvill. 119 
Rissoidæ . 35 119 
Rissoina Orb. 119 
Rissoinæ . 119 
Rissoininæ . 119 
Rostellaria Lmck. 103 
RotellaLmck. 129 
Rotellinæ . 129 
Sanguinolaria Lmck. 156 
Saxicava Fl. de B. 150 
Saxicavidæ . 150 
Scalaria Lmck... 92 
Scalariidæ . 92 
Scaliola A. Ad. 92 
Scaphander Mft. 143 
Scapharca Gray. 185 
Scrobicularia Schmch. 160 
Scrobicularinæ . 160 
Scutellidæ . 137 
Scutellina Gray. 137 
SCUTIBRANCHES. 37 
Senilia Gray. 185 
Septifer Rclz. 53 
Sigaretus Lmck. 91 
Simnia Riss. 110 
Siphonaria Sow. 40 
Siphonariidæ . 40 
Skenea Flmg. 122 
Skeneinæ . 122 
Smaragdinella H. A. Ad... 40 
Solariidæ . 97 
Solarium Lmck. 97 
Solecurtus Blvll.1^149 
127 
127 
144 
144 
146 
146 
149 
69 
125 
125 
183 
33 
61 
43 
192 
118 
118 
41 
41 
145 
145 
145 
34 
34 
63 
63 
63 
191 
52 
61 
130 
122 
122 
114 
113 
53 
155 
102 
55 
40 
71 
130 
93 
114 
