149 



sericea, Helix p. 38 



serpuloides, Helix .... 132 

 serpuloides, Turbo .... 1 32 

 sexdentata, Vertigo .. 103 

 $exdentatus ) Turbo .... 104 

 Skeppardi, Planorbis 108 



simile, Cyclostoma 135 



similis, Paludina 135 



solida, Mysca 22 



spinulosa, Helix 43 



spinulosa, Teba 43 



Spirorbis, Helix 115 



Spirorbis, PlanorbisllO,115 



Spirorbis, Valvata 131 



stagnate, Helix ...121, 135 



stagnalis, Limneus 121 



stagnalis, Mytilus 18 



Stagnorum, Helix 135 



Stagnorum, Paludina . 135 



striata, Helix 41, 42 



striatus, Turbo 93 



strigata, Helix 39 



subcylindrica, Helix.... 82 



SUCCINEA 91 



succinea, Helix 91 



sulcatum, Cyclostoma.. 94 



T. 



tentaculata, Helix 134 



Terebra, Helix. 105 



terrestre, Buccinum...^. 89 



terrestris, Trochilus ... 43 



terrestris, Trochus 43 



TESTACELLUS 27 



thermalis, Turbo 130 



tridens, Turbo 68 



trochiformis, Helix 61 



Trochulus, Helix 61 



tuberculatus, Bulimus. 81 



turrita, Limnea 129 



U. 



umbilicatcty Helix 60 



umbilicata, Pupa 97 



Unguiculus,Limacellus 26 



unifasciata, Cochlea ... 35 



UNIO 19 



V. 



VALVATA 130 



variabilis, Helix 41 



ventiicosa, Clausilia ... 72 



ventricosus, Bulimus .. 80 



VERTIGO 101 



virgata, Helix 40 



virgata,Teba 41 



viride, Cyclostoma ... 135 



viridis, Paludina 135 



VITRINA 30 



vivipara, Helix 1 33 



