Helicella, 
Janus, 
Javacensis, 
lacticina, 
laevigata, 
laevipes, 
lapicida, 
laxata, 
Lefeburiana, 
limbata, 
lineata, 
lucida, 
mamumilla, 
maritima, 
Naxientia, 
nitida, 
nitidosa, 
nitidosa, 
nitidula, 
olivetorum, 
Olivieri, 
Orbicula, 
pellis-serpentis, 
pellita, 
perspectiva, 
planata, 
Planorboides, 
planulata, 
plebejum, 
polygyrata, 
protensa, 
pygmea, 
pyramidata, 
Pyrenaica, 
Quimperiana, 
revelata, 
Richardi, 
rotundata, 
ruderata, 
rupestris, 
Senegalensis, 
sepuleralis, 
sericea, 
solarium, 
Sstrigata, 
strigella, 
succinea, 
trochiformis, 
umbrosa, 
unguicula, 
ungulina, 
varians, 
verticillus, 
villosa, 
viridula, 
Fer., Beck, 
Fer., 
PAGE 
138 
148 
148 
125 
149 
149 
149 
150 
150 
151 
151 
158 
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158 
168 
168 
158 
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142 
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169 
170 
167 
171 
171 
172 
129 
174 
174 
181 
177 
178 
158 
181 
182 
183 
183 
157 
185 
185 
169 
Helicella, 
Vitrinoides, 
zonalis, 
zonaria, 
zonata, 
Helicigona, 
angistoma, 
angulata, 
bifasciata, 
earocolla, 
Gualteriana, 
inversicolor, 
lampas, 
lanx, 
lapicida, 
lens, 
lenticula, 
marginata, 
pileus, 
pyrostoma, 
Rangiana,. 
Helicina, 
costellata ? 
multistriata, 
pagoda? 
pyramidella, 
rugosa, 
Helicoceras, 
Helicodonta, 
auriculata, 
avara, 
badia, 
bidentata, 
cepa, 
clausa, 
contorta, 
denotata, 
dentiens, 
diodonta, 
gularis, 
hirsuta, 
holoserica, 
imperator, 
Josephine, 
Knoxvilliana, 
labyrinthiea, 
labyrinthus, 
Lamarckii, 
lamellosa, 
linguifera, 
lueerna, 
lychnuchus, 
monodon, 
nux-denticulata, 
obvoluta, 
443 
« 
Mill., 
Fer., 
Lam., 
Morel., 
Velasgq., 
Newcomb, 
Spix, 
Pfr., 
D Orb., 
Fer., 
170 
261 
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132 
161 
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136 
143 
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137 
148 
148 
117 
149 
120 
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131 
168 
159 
Helicodonta, 
obvoluta, 
parilis, 
personata, 
pustula, 
sinuata, 
soror, 
thyreidus, 
tridentata, 
triodonta, 
Helicogena, 
alabastrites, 
albolabris, 
Alonensis, 
arbustorum, 
argillacea, 
aspera, 
aspera, 
auricoma, 
Austriaca, 
eaelatura, 
Carsoliana, var., 
circumtexta, 
Codringtoni, 
cornu-militare, 
discolor, 
formosa, 
gilva, 
globularis, 
globulosa, 
Groviana, 
haemastoma, 
hortensis, 
hybrida, 
imperfecta, 
irregularis, 
Isabella, 
Jamaicensis, 
lactea, 
lactea, 
libellula, 
lima, 
marmorata, 
melanostoma, 
Melitensis, 
multilineata, 
muralis, 
muralis, 
naticoides, 
nemoralis, 
Nicaeensis, 
Niciensis, 
Niciensis, 
orbiculata, 
Otaheitana, 
