INDEX. 
Philomycus flexuolaria, 65 | Potamilus fragilis, 
ES fucsus, 65 “ gibbosus, 
. oxy unas, 64 G latissimus, 
nadrilus, 64 ss leptodon, 
Pholadaria, t 19 chs rel ti 
Pholas, Linn., 19 “ niger, 
Phoronea, 7 C nodosus, 
Phusearia, 21 ae obovalis, 
Phyleris, 19 © obliquatus, 
Phyllidia, Cuv., 16 “ phaiedrus, 
Phyllidinia, 16 ss pusillus, 
Phyllirhoe, Perry, 9,16 a retusus, 
Phymesoda, 61 «< subrotundus, 
Phymotis, 17 cb triqueter, 
Physa, Drap., 18 yh: truncatus, 
Physina, 18 ss tubercularis, 
Pinna, Linn., 20, 30, 68 ee verrucosus, 
Pinnula, 20, 30 “: violacinus, 
Placuna, Lam., 91 ee zonalis, 
Placunia, 21 Potamiphus, 
Plagiola, 29, 42, 46, 64, 72.75, 77 | Praxidice, 
Planorbia, 18 Productus, 
Planorbis ,Geof., 18. 24,27 | Prognella, 
“ albescens, 92 Proptera, 
Planospira, Lam., 18 | Psephides, 
Planulites, Lam., 15 i paradoxa, 
Platalias, 1s Psilotus, Poli , 
Platilia, 86 | Pterocera, Lam., 
Platilites, 86,87 | Pteropodia 
Platinites. 24, 28 Pterotrachia, Forsk., 
M3 striata, 2g | Pupa, Lam. 
Plenreterites, 90 Puparia, 
My anisocta, 91 Purpura, Brug., 
“ bifasciata. 91 Pyramidella, Lam., 
s concentriea, 91 | Pyrula, Lam., 
rig divisa, 91 Quadrula, 
se lateristriaia, 91 Radiolita, Lam., 
vf latiundata, 91 | Ropalitia, 
se obliqua, 91 | Rotalites, Lam., 
+ steilata, 90 Rostellaria, Lam, 
ie striata, 91 Rotundaria, 
Pleurinia, 86 | Rupellaria, Fleurian, 
Plerobema, 56 Rupicola, Fluerian, 
Pleurobranchus, Lam., 17 Sachondrus, 
Pleurocera, 23, 25, 26, 66 Ke saceata, 
se acata, 66 | Sachroa, 
# angulata, 23 | Saconites, 
“ coneola, 23 se graularis, 
Be fasciata, 13 Salpa, Linn., 
¥ gonula, 67 | Salparia, 
g quadrosa, 67 | Sanguinolaria, 
f retusa, 23 | Sarcopterus, 
Be saxatilis, 22 = ruber, 
f turricula, 23 | Saxonus, 
st verrucosa, 65 Saxicava, F1., 
Pieuroma, Lam., 18 | Scalenaria., 
Pleuropia, 16 | Seyllea, Linn., 
Pleuropteria, 16 | Seytinoma, 
Pleuropus, 16 Scytinomia, 
Pleurotoma, 24 | Sephinia, 
Pleuroxis, 24 | Sepia, Linn., 
Plicatula, Lam., 21 “ mvcronatay 
Pneumoderma, Cuyv., 9,16 | Serpula, Linn., 
Polarnaxia, 15 Serpularia, 
Poleteria, l4 Sigavetia, 
Polithalus, 13 Sigaretus, Lam., 
Polizoon, 21 Siliquaria, Lam., 
Poliphonus, 19 Sintoxia 
Polydectus, 17 “lateralis, 
Polymesoda, 61 Siphalomphix, j 
Potamilus, 22, 24,35 & bonariensis, 
ss alatus, 22 Siphobranchia, 
eo auratus, 22 | Siphodon, 
e ellipticus, 22 | Siphonemus, 
Ke fasciatus, 23 Solarium, Lam., 
22 | Solen, Linn, 
ae fasciolaris, 
18 
19 
10, 12, 16 
10,16 
53 
