mm 



Vt&ti) fcer tjter mitgetyetttett Ueberftc^t tfr* 

 ^raparnait&'fdjen <§9jlem3, ftnD in Dem er 

 ften uni> jwe^ten |>eft Diefer Mtyetlung &ie 23o 

 neimungen einiger Slrten fo^enDermaffen $u rer< 

 anbern. 



3m e r (f e ti £eft: 



Anodonta anatina Drap, 

 Limneus staeraalis 



Drap. 



Limneus palustris, vai\ 

 oc. Drap. 



— ■ — auricuJarius, Dr. 



Mytilus aaatious X* 



Bnccinum stagnale 



Maller. 



— — rosco - labia- 



tum. Wolf. 



— — aurieula. Mut 

 Helix putris, X 



Succinea amphibia, 



Drap. 



Helix bidens £ Uausilia bidens , Drap. 



— — perversa X CJausilia 

 Rerita vivipara, Müll 



Mya pictorum. X» 

 TelJina cornca JE«, 



ventricosa 



Drap. 



Cyclostoma viviparum, 

 Drap. 



Uflio pictorum, Drap, 

 Cyelas Cornea, Drap. 



