1914.1 NATURAL SCIENCES OF PHILADELPHIA. ., 225 



Punotum pygmaeum Drap. 



Collected in thickets at Grindstone, M. I., iJnd along Indian River, 

 at Kensington, Prince Edward Island. 

 Succinea ovalis Say. 



Was collected at Basin Island, M. I.; Etang du Nord on Grind- 

 stone Id., M. I.; between Brackley Point and Charlottetown, 

 also at Bloorafield on Prince Edward Island. 

 Succinea retusa Lea. 



Was taken in a larch swamp on Grind.stone Island, M. I.; and at 

 North Lake and Tignish on Prince Edward Island. 

 Succinea avara Say. 



One specimen found in a larch swamp on Grindstone Island, M. I. 



Succinea bayardi n. sp. 



On grass stems in a salt marsh just above the water along Indian 

 River, Kensington, Prince Edward Island. 



Planorbis trivolvis Say. 



East Point Ponds and ponds past of East Cape, Coffin Island; 

 Grand Tracadie and Dundee, Prince Edward Island. 



Planorbis antrosus Conr. 



Was taken at Moncton, New Brunswick, Canada. 



Planorbis exacutus Say. 



From a brook in a meadow, Grindstone Island, M. I. 



Planorbis deflectus Say. 



Was taken at East Point Ponds and ponds east of East Cape, 

 Coffin Id.; Etang du Nord and in two brooks on Grindstone Id., 

 M. I.; North Lake, Black Pond, Lower Sea Cow Pond, Tignish, 

 stream between Brackley Point and Charlottetown, and in a brook 

 at Charlottetown, Prince Edward Island. 



Planorbis parvus Say. 



Was collected at Etang du Nord, Grindstone Id.; pools near the 

 Narrows, Alright Id., M. I.; Lake Verde and in a stream between 

 Brackley Point and Charlottetown, Prince Edward Island. 



Lymnaea palustris Mull. 



Was collected in ponds east of East Cape, Coffin Id.; Etang du 

 Nord, Hospital Pond and nine other pools on Grindstone Island, 

 M. I.; North Lake, Grand Tracadie, Bloomfield, FuUerton's Marsh 

 at Bunbury, Dundee, Lower Sea Cow Pond at Tignish, in a .stream 

 between Brackley Point and Charlottetown, Hillsborough River at 



