136 



ALPHABETICAL INDEX. 



Cyci.as. 



Cyclas calyculata 118 



Cyclas citrina 131 



Cyclas cornea 117 



Cyclas laciistris 117 



Cyclas rivicola 116 



Cyclostoma. 



Cyclostoma elegans 26 



Cyclostoma marmorea 27 



Dreissena. 



Dreissena polymorpha 97 



Helix. 



Helix aculeata 68 



Helix alliaria 82 



Helix Arbustorum 59 



Helix aspersa 55 



Helix Cantiana 63 



Helix caperata 74 



Helix Cartlmsiana 63 



Helix cellaria 81 



Helix conciiina 72 



Helix crenella 62 



Helix crystellina 8-t 



Helix depilata 72 



Helix ericitorum 76 



Helix excavata 85 



Helix fiilva 65 



Helix f usca 66 



Helix graniilata 69 



Helix hispida 71 



Helix hortensis 57 



Helix hybrida 58 



Helix lamellata 67 



Helix lapicida 60 



Helix limbata 65 



Helix lucida 83 



Helix margaritacea 87 



Helix nemoralis 56 



Helix nitidula 82 



Helix obvoluta 87 



Helix pisana 75 



Helix Pomatia 54 



Helix pxilchella 61 



Helix pura 86 



Helix pygmfea 79 



Helix radiatula 84 



Helix revelata 69 



Helix rotundata 78 



Helix rufescens 64 



Helix sericea 70 



Helix umbilicata 80 



HelLx virgata 73 



LiMAX, 



Limax agrestis 93 



Limax agrestis 128 



Limax arboreiis 127 



Limax ater 129 



Limax carinatus 92 



Limax flavus 92 



Limax flavus 128 



Limax gagates 94 



Limax gagates 129 



Limax maximiis 91 



Limax maximus 127 



Limax Sowerbii 128 



Lymn^a. 



Lymnsea auricularia 11 



Lymnsea elongata 10 



Lymnsea involuta 13 



Lymnsea minuta 9 



Lymnsea palustris 9 



Lymnsea peregra 11 



Lymnsea stagnalis 8 



Neeitina. 

 Neritina fluviatilis 1 



Paludina. 



Paludina Achatina 4 



Paludina impiira 4 



Paludina ventricosa 5 



Paludina vivipara 3 



Physa. 



Pbysa acuta 16 



Physa fontinalis 15 



Physa hypnonmi 16 



