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LIFE OF THE PLEISTOCENE 

 ANIMALS 



MOIXUSCA 

 PELECYPODA 



Unionedae 



Lamps His lutcola (Lamarck) 

 Sphaerium species 



Helicina occulta Say 

 Goniobasis species 

 Campeloma decisum (Say) 

 Pkysa heteroslropha Say? 

 Planorbis antrosus Conrad 



Sphaeriidae 



GASTROPODA 

 Helicinidae 



Pleuroceridae 



VlVIPARIDAE 



Physidae 



Planorbidae 



Planorbis parvus Say 

 Lymnaeidae 

 Pscudosuccinea columella (Say) Galba humilis modicella (Say) 



Galba obrussa (Say) " caperata (Say) 



" galbana (Say) " parva (Lea) 



Auriculidae 

 Carycium exile H.C. Lea 



VALLONnDAE 



Vallonia gracilicosla Reinh. Vallonia pulchella (Miiller) 



Vallonia costata (Miiller) 



COCHLICOPIDAE 



Cochlicopa lubrica (Miiller) 



PUPILLIDAE 



Bifidaria armifera (Say) 

 " conlracta (Say) 

 pentodon (Say) 

 proccra (Gould)" 

 " conicaria (Say) 

 Strobilops labyrinthica (Say) 

 " virgo Pilsbry 



SUCCINELDAE 



Succinea grosvenori Lea 



Vertiga modesla Say 



" ovala Say 



" milium (Gould)" 

 Pupilla muscorum (Linn.) 



" blandi (Morse) 



decora (Gould) 



Leucochila jallax (Say) 



Succinea avara Say 

 " ovalis Say 



43 Vide Shimek. 





