24 



Twenty-Second Annual Report on State Cabinet. 



Achatina lubrica, Mull. 

 Vertigo ovata, Say. 



Cartciiium exiguum, Say. 



PUPAD.E. 

 Pupa - 



AURICULIDiE; 



FAMILIES. 



Genera. 



No. in each 

 Genera. 



No. in each 

 Family. 



ITnionid^e, 



Unio, 



8 

 3 

 5 

 3 

 2 

 3 

 1 

 7 

 3 

 7 

 1 

 3 

 2 

 1 

 3 

 15 

 1 

 1 

 1 

 1 

 1 



16 



5 



3 

 1 



IS 



3 

 3 



19 

 3 

 1 



CoRBICULADiE , 



VlVIPARIDiE, 



Margaritana, 



Anodonta, 



Sphaerium, 



Pisidium, 



Paludina, 



Vat.vattd/e, 



Valvata, 



LlMNjEID.E, 



Limusea. 



Melaniad^e, 



Physa 



Planorbis, 



Ancylus, 



Melania, 



Amnicolid^:, 



HELICIDiE, 



Amnicola, 



Somatogyrus, 



Succinia, 



PlJPAD^E, 



AuRICITLID^E, 



Helix, 



"Vitrina, 



Acliatina, 



Vertigo 



Pupa, 



Carychium, 





10 



21 



72 



72 



There are, undoubtedly, a number of other species occurring in this 

 vicinity, but the above have actually been found, either by myself 

 or others, perfectly to be relied upon. 



The local distribution of the fresh water shells is especially notice- 

 able, some being found in the Mohawk basin and not in the Hudson 

 River, but a few rods away. 



Again, one Unio is found only in the Champlain or Northern canal, 

 while others are confined to the Erie canal alone. 



