42 The Ottawa Naturalist. [June- July 



32. Helicodiscus parallelus (Say). De Grassi Point, May 10th 

 August 25th, not uncommon. Most of my specimens were found in 

 shady thickets or woods of cedar, poplar, elm, etc. It was also taken 

 by Miss Ford at York Mills, north of Toronto, July 22nd, 1 specimen, 

 and at Point au Baril, Georgian Bay, August 11th, 2 specimens. 



33. Punctum pygmaeum (Draparnaud). De Grassi Point, 

 May 14th August; Giant's Tomb Island, July 20th. Found on the 

 under surface of decaying leaves in the forest litter, associated with 

 Zonitoides exigua. Considerable search was made for this minute 

 species but it was not often taken. 



34. Sphyradium edentulum (Draparnaud). Several examples 

 of this little pupiform snail were taken at De Grassi Point from the 

 debris in a small grove of cedar, elm and poplar on July 22nd. They 

 were associated with Vertigo elatior, Helicodiscus parallelus and a few 

 other common species. Another specimen was taken in a somewhat 

 swampy wood on August 15th, and it was again taken on May 5th, 

 1917. 



Philomycidae. 



35. Philomycus carolinensis (Bosc). This large slug occurs 

 commonly in rotten logs in the hardwood at De Grassi Point, and I 

 found a number of specimens in a wooded ravine at Go Home Bay, 

 July 16th, and on the Giant's Tomb Island, July 20th. It also occurs 

 at Toronto and St. William's. The earliest capture of the adults was 

 that of the Go Home Bay specimens. 



Pallifera dorsalis Binney, has been recorded from Toronto but 

 I have not met with it at all. 



SUCCTNEIDAE. 



36. Succinea retusa Lea. Very abundant at De Grassi Point 

 in open marshes and readily collected by sweeping the marsh grasses 

 and sedges with an insect net. 



36a. Succinea retusa var. decampii Tyron. Miss Ford collected 

 a number of specimens of this variety from several localities in the 

 vicinity of Toronto (East Toronto, Mimico and Lambton). All were 

 taken during September. 



37. Succinea ovalis Say. De Grassi Point, May 10th August 

 25th, common in low, rich woods; sometimes occurring under bark and 

 rubbish, sometimes on leaves of shrubs some distance from the ground. 

 It is also common at Toronto and a specimen was taken at St. 

 William's. 



Two specimens resembling the var. totteniana Lea, were found at 

 Toronto by Miss Ford, April 29th (old shell) and June 21st, fresh 

 adult. 



38. Succinea avara Say. First noticed at De Grassi Point on 

 June 23rd, 1915, but apparently common throughout the summer, 



