Occasional Papers of the Museum of Zoology 5 



PJiysa Jictcrostropha Say. Oscoda County. 



Pliysa- Integra Haldeman. Alcona County: Bamfields. Os- 

 coda County : Big Creek. Crawford County. 

 Pliysa sayii Tappan. Crawford County. 



Auinicola liuiosa (Say). Crawford County: South Branch 

 of Au Sable River. Alcona County: Killmaster, Pine River. 



Vak'ata iricarinata Say. Crawford County: South Branch 

 of Au Sable River. 



Goniobasis lii'esceiis ^Menke. Alcona County. Oscoda Coun- 

 ty. Crawford County. 



Cainpehuna rufiiiii (Haldeman). Oscoda County. 



Spliccriuin fabalc (Prime). Oscoda County. 



Spluvriiiin sidcatiiin (Lamarck). Alcona County: Van Net- 

 ten Creek, Greenbush. Crawford County. 



Sphccriuui staininciiiii (Conrad). Oscoda County: McKin- 

 ley, Butler Bridge. 



Spha-riiiin striatinitiii (Lamarck). Oscoda County. 



Lasniigona couipressa (Lea). Crawford County. 



Alasuiidonta calccolus (Lea). Crawford County. 



.-hiodoiita niarginata Say. Alcona County: near Harrisville. 



Anodonta grandls footiana ? Lea. Alcona County: Green- 

 bush, Twin Lakes, Lincoln. 



