Ochthephila, - 
leptosticta, — 
Maderensis, 
paupercula, 
polymorpha, 
rotula, 
thiarella, 
tumulorum, 
Ochthosia, 
Octolasmis, 
Octomeris, 
Octépodes, 
Octopus, 
Odontidium, 
Odontostoma, 
nitidum, 
Odontostomus, 
Bahiensis, 
exesus, 
fuscagulus, 
Gargantula, 
Teucotrema, 
Pantagruelinus, 
Odostomia, 
biplicata, 
eorticaria, 
laminato, 
muscorum, 
nigricans, 
perversa, 
Oliva, 
Omalonyx, 
unguis, 
Ommastrephes, 
Onchidium, 
Oniscia, 
Onychoteuthis, 
Orbieula, 
Orbitina, 
incomparabilis, 
truncatella, 
Oreula, 
conica, 
doliolum, 
dolium, 
gularis, 
Orthalicus, 
livens, 
princeps, 
rex, 
sultana, 
undatus, 
zebra, 
Orthis, 
Orthocera, 
PAGE 
117 
150 
153 
159, 162 
166 
wo 
wOmwwwe 
o 
io % 
5 i 
ae 
MO BD Ww WO 
Orthostylus, 
aureus, 
decoratus, 
Dufresnii, 
inversus, B, 
laevus, 
metaformis, 
ovoideus, 
Pythogaster, 
rufogaster, 
sareinosus, 
ventricosus, 
viridis, 
Ortygia, 
gallina, 
Osteodesma, 
Osteodesmata, 
Ostracea, 
Ostraea, 
alata, 
conspersa, 
decemradiata, 
dubia, 
elliptica, 
ephippium, 
gigantea, 
guttata, 
isognomum, 
lima, 
malleus, 
perna, 
picta, 
spondyloideum, 
turgida, 
Virginiana, 
Otala, 
asperula, 
atomaria, 
Groviana, 
haemastoma, 
incerta, 
microstoma, 
pouchet, 
punctifera, 
suleata, 
Otis, 
fluctuosa, 
Otostomus, 
lagotis, 
lateralis, 
myotis, 
navicula, 
signatus, 
Ovatella, 
bidentata, 
450 
Brown, 
“ 
Desh., 
Linn., 
Gmel., 
89 
151 
151 
149 
183 
143 
146 
122 
118 
151 
232 
266 
266 
189 
189 
202 
190 
202 
208 
265 
265 
Ovyatella, 
punctata, 
Ovula, 
alba, 
angulosa, 
columba, 
costellata, 
oviformis, 
Ovulum, 
secale, 
Oxychilus, 
eellaria, 
ericetorum, 
lueidus, 
nitidulus, 
Oxinoé, 
glabra, 
Pachyotus, 
alopecotis, 
bilabiatus, 
iostoma, 
melanostomus, — 
Padollus, 
rubicundus, 
scalaris, 
Paludina, 
Desnoyersii, 
vivipara, 
Paludinella, 
fusca, 
Pelee tor} 
amina, 
Pandora, 
Panopaea, 
Parasitica, 
Parmacella, 
Parmophorus, 
Partula, 
auricula, 
auriculata, 
australis, 
australis, 
Bataviae, 
Bulimoides, 
Dumartroye, 
faba, 
gibba, 
hyalina, 
inflata, 
Jabrella, 
lineata, 
maura, 
Maximiliana, 
Otaheitana, 
Leach, 
Lam., 
Payr., 
Guer., 
Beck, 
Gray, 
Soland, 
Menard, 
Cuv., 
Blain., 
Fer., 
Brod., 
Fer., 
Bowd., 
Grat., 
Less., 
Soul., 
Sowb., 
Fer., 
Brod., 
Reeve, 
Grat., 
Less., 
Miuhblf., 
Pot. et M., 
Fer., 
