58 THE NAUTILUS. 



11. Polygyra palliata Say.J 



12. Polygyra tridentata Say.J 



12. Polygyra tridentata var. juxtidens Pilsbry.J 

 l'2b. Polygyra tridentata var. bidentata Baker. J 



13. Polygyra monodon Rackett.j 



Nos. 9 to 13 were collected on a well wooded limestone hill, well 

 watered. 



14. Bifid aria armifera Say.* 



15. Pupa innscorum Linne, Auburn. Common in damp grass 

 throughout the city, often found in private grounds. 



16. Vertigo miliurn Gould,** 1880. 



17. CocJtlicopa lubrica Miiller,** 1880 and 187G, on driftwood in 

 Owasco River at Auburn. 



18. Omphalina fuliginosa Griff.! 1883. 



18. Vitrea ham mom's Strom,** April, 1882. 



20. Conulus fulvus Miill.,** on roots of grass near edge of river, 

 April, 1882. 



21. Zonitoides arboretis Say.| 



22. Zonitoides nitidus Miiller,** April, 1882. 



23. Gastrodonta ligera Say,** April, 1882. 



24. Agriolimax campestris Binney. 



25. Pyrainidnla alternata Say,* very abundant in low meadows, 

 under bark of trees and the under side of logs where the ground is 

 partially shaded. 



26. Helicodiscus lineatus Say.J 



27. Succinea retusa Lea, tt on logs and trunks of trees near high 

 water mark, July, 1880. 



28. Succinea avara Say, ft July? 1880, in company with the above. 



29. Limncea palustris Miiller, tt 1884. 



30. Limnaa emarginata Say, ft ** a ' so ' in Owasco River, at foot 

 of lake, 1880, and April, 1882. 



31. Limncea desidiosa Say,|+ on weeds, 1880. 



33. Planorbis bicarinatus Say, f, 1881, Port Byron, 1883. 



34. Planorbis trivolvis Say, f old and new outlets, 1880, Port 

 Byron. 



35. Planorbis campanulatus Say, * 1882, also in brook emptying 

 into lake at Cascade. 



36. Planorbis parvus Say,* on big dam. 



37. Physa heterostropha Say,* Port Byron, 1879 to 1882. 



