MOLLUSCA FROM INDIANA AND OHIO 



441 



which is lacustrine. The family relationship as regards number 

 of species represented in the two deposits is shown in Table I. 



TABLE I 

 Comparison of Families in Ohio .and Indlana Deposits 



The species of the two deposits are sho\Mi in Table II, in which 

 the particular species in each family are hsted. It will be noted 

 that there are twenty-seven species and races in the Ohio deposit 

 and thirty-three species and races in the Indiana deposit. 



TABLE II 



Comparison of Fossil FaltsAS 



Ohio Indiana 



. . . . ■ Lampsilis veniricosa 



Amblema undulata 



Carunculina glans 



ElUptio cras'sidens 



ElUptio gibbosus 



Actinonaias ellipsifonnis 



Anodonta species 



Sphaerium solidulum 



Sphaerium stamineum 



Sphaerium striatinum 



Sphaerium fabale 



Sphaerium sidcaHmi 



Musculium rosaceum 



Pisidium virginicum 



