239 
Cotilo riparia. 
1869» 
Jul;>- & 
Aug, 
Pound them building near the Glen House, N.H. 
1870. 
July 28. 
As far up the valley as the farming country extends 
(Profile House,N.H,). 
1875. 
July 20. 
A colony on the Green Islands near Portland,Maine. 
