1914.] NATURAL SCIENCES OF PHILADELPHIA. 223 



mens were taken representing the following forms, four 12345, two 

 1(23)45, two (12)345, (123)45; four specimens from Alright Island, 

 M. I., all are the form 12345. This species was collected at three 

 locations on Prince Edward Island as follows, one form 12345 from 

 Douglas, four 00000 from Souris and five 00000 from Bloomfield. 

 Hygromia hispida L. 



Eight specimens were collected at Charlottetown, Prince Edward 

 Island. 



Pupilla muscorum L. 



One specimen taken at Basin Island near Coffin Island, M, I. 

 Bifldaria pentodon Say. 



Collected in alder thickets at Grindstone, M. I., and Tignish, 

 Prince Edward Island. 

 Vertigo ovata Say. 



Taken along a rill at Summerside and on knolls in alder thickets 

 at Tignish, Prince Edward Island. 



Vertigo ventricosa Morse. 



Collected in woods on Basin Island off Coffin Island, M. I.; and 

 in alder thickets at Tignish, Prince Edward Island. 



Vertigo gouldi Binn. 



Taken in the woods at Grindstone, Grindstone Id., M. I., and at 

 Mt. Stewart, Prince Edward Island. 

 Columella edentula Drap. 



Five specimens taken on Basin Id., M. I. 

 Acanthinula harpa Say. 



One specimen found near Campbell's Pond, Darnley, Prince 

 Edward Island. 

 Vallonia pulchella Mull. 



One specimen taken in coniferous woods at Charlottetown, Prince 

 Edward Island. 

 Ccchlicopa lubrica Miill. 



Plentiful in the woods on Basin Id., M. I., one specimen being very 

 tall; also found in alder thickets at Grindstone, M. I., and at Tignish, 

 Prince Edward Island. 



Vitrina limpida Gld. 



In a low wet calcareous woods on Basin Id., M. I. 

 Vitrea hammonis Strom. 



Collected in a meadow and in alder thickets on Grosse Isle, 

 M. I.; in the woods on Basin Id.; in the thickets and woods at 



