Helix cornea 
—— lapicida 
——— vortex 
-——— contorta 
————- pomatia 
CONTENTS. 
w—— hortensis (Aspera Gmel. ?) - = 
— pallida | 
— rafescens 
—— arbustorum 
—— nemoralis 
—— Zonaria 
hispida 
ericetorum 
tentacula 
— 
— vivipara 
e——— auricularia 
—— stagnalis 
—— fragilis 
-— fontinalis 
——- putris 
—— Bullaoides 
Nerita littoralis 
——— glaucina 
———=— intricata 
nitida 
ame fluviatilis 
pallidus 
Haliotis tuberculata 
Patella Vulgata 
fissura 
pellucida 
parva 
—-— reticulata 
——— Ungarica 
militaris 
——— albida 
——-— lacustris 
——--— oblonga 
—eeme jtorta 
Plate. 
147 
150 
146 
Fig. 
Dice OM, Be, 
