e. 6 1 u & ( 



3n »orjl«6cni)ct atifcanöluii«. 



3tt Ccie Travels of Switzerl. 3m%mirn)i||CttKl)f[[.3(tije:gci- 



@, 8, iö a f t m a n tt. 



3n öec alpin« Tom. n. 3n!).SSefc6«i6.4e«55ot)enfeeSi 



75 Limneus pcrege 



Limneus pereger 

 Limueus iouti&alic 



Limncus acroni 



as var. bulla 

 papilla 

 papilla 



aalis var. lacustr 



78 Pbysa hypnorum 



Buccinum papilla 

 Bnccinum rivale 



BucGinum auricula . 

 Buccinum lacustre . 



Buccinum stagnale . 

 Buccinum fragile (Ulli!. 

 Planorbis lurritus . 



Planorbis bulla 



Planorbis spirorbis 

 Planorbis complaiiaius 



Planorbis albus 



Limneus Hartman. 



Limueus auricular 

 Limneus lacustris 



Limneus stagnalis 



TKiuoibis g) rorbis 

 ri.niorhiis complau 

 Planorbis umbilica 



Helix glutinös* 



Bulla Jominali 

 lleli* coutorta 



Hclii co.tjplanat 

 Helix planorbis 



tH't) l'lanorbis bispidus 

 Planorbis corneus . 

 Planorbis bispidus . 



Ileus auiicula.i*. 



Helix stagnalis^ 



Bulla 

 Helix 



ioniinal: 



Helix 

 Helix 



itorbis 



Hell* 



complau 



Hclix 



planorbii 



