SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 92. NO. 2, PL. 1 



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New fresh-Water Mollusks from Northern Asia 



1. Lymnaea (Galba) palustris saridalensis. 6. 



2. Lymnaea (Radix) sasurneusis. 7. 



3. Lymnapa (Galba) palustris holotensis. 8. 



4. Valvata aiitiqiiilina. g. 



5. Valvata antiqua Morris. 



Fhysa sartlaiidinensis. 

 Lymnaea (Galba) palustris kazakensis. 

 Planorbis (Spiralina) johanseni. 

 Lymnaea (Galba) palustris draverti. 



