22 The Ottawa Naturalist. [May 



A single specimen of this snail was found by Miss Ford at Point 

 au Baril, Georgian Bay, on August 11th, 1916. 



12. Vitrea cellaria (Muller). This European species was found 

 by Miss Ford in considerable numbers in the greenhouse of the 

 Botanical Department of the University of Toronto. It was first 

 noticed on February 16th, 1917. It had already been taken in 

 Toronto many years ago by the late Dr. Wm. Brodie. 



13. Vitrea hammonis (Strom). De Grassi Point, July 4th-24th, 

 under logs, chips and bark in woods. It does not appear to be very 

 common. It was also taken by Miss Ford in the vicinity of Toronto 

 (Lambton and York Mills) in September. 



14. Vitrea binneyana (Morse). Not uncommon at De Grassi 

 Point, occurring with the preceding species in the hardwood and mixed 

 forest. My specimens are dated from July 22nd to August 25th, but 

 they probably occur throughout the season. It was also found on 

 Giant's Tomb Island, July 20th, and Miss Ford took a single specimen 

 at Point au Baril on August 16th, 1916. 



15. Vitrea rhoadsi Pilsbry. Miss Ford took a fine specimen of 

 this rare species in the "Belt Line Cut" Toronto, on August 28th, 1916. 



16. Vitrea indent at a (Say). A very few specimens were found 

 in a wooded ravine at Go Home Bay, July 16th. It was not noticed 

 elsewhere. 



17. Vitrea ferrea (Morse). This pretty little ribbed form was 

 occasionally found under bark and rubbish in the woods at De Grassi 

 Point during July and August. 



18. Vitrea multidentata Binney. This interesting little snail, 

 so different in appearance from the other Vitreas, was found throughout 

 the summer at De Grassi Point, occurring most plentifully in the hard- 

 wood, but nowhere abundant. 



19. Euconulus fulvus (Muller). A specimen of this species 

 was taken at Go Home Bay, July 16th, and it also occurred sparingly 

 at De Grassi Point, but it was not distinguished in the field from the 

 next species. The earliest adult was taken on April 29th, 1917. 



20. Euconulus chersinus polygyratus (Pilsbry). A common 

 little snail at De Grassi Point, where it is generally distributed in the 

 woods, especially in more or less damp places. Adults were most 

 plentiful during late June and July. Miss Ford found a single adult 

 at Lambton (near West Toronto), September 4th, 1916, and an im- 

 mature example at Victoria Park, Toronto, October 7th. I found it 

 again in early May, 1917. 



21. Zonitoides nitida (Muller). This dark-coloured snail 

 occurs in abundance in open marshes at Toronto and De Grassi Point, 

 where it is most easily found by turning over logs and boards^ ^fefjg^j M 

 found throughout the summer and autumn. ''\5^?L~^ S* 



(2 V be continued) . ^ /^* 'fey'l 



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LIBRARY 



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