268 Land and Fresh-water Shells 



ARTICLE XVII. — List of Recent Land and Fresh-ivater Shells 

 collected around Lakes Superior and Huron in 1859-60. 

 By Mr. Robert Bell, Assistant to Alexander Murray, Esq., 

 Geological Survey of Canada. 



(JFor the " Canadian Naturalist J^) 

 Terrestrial Gasteropoda. 



1. Helix alternata^ Say. North shore of Lake Huron ; Manitoulin Is- 



lands and the smaller islands between them and the 

 main land ; S. W. side of Georgian Bay. On a small 

 island near Lacloche Island about a pint of these 

 shells was collected in the space of two yards. 



2. " albolabris, Say. Keweenaw Point ; Grand Island ; north 



shore of L. Huron ; Manitonlin Islands ; S. W. side 

 of Georgian Bay. 



3. " monodon, Raskett. Grand Island ; E. shore of L. Superior ; 



Grand Manitoulin Island; S. "W. side of Georgian 



Bay ; Sarnia. 

 tridentata, Say. S. W. side of Georgian Bay. 

 concava, Say. Rabbit Island ; Sarnia. 

 muUilineata, Say. Abundant on swampy ground at Sarnia. 

 aborea, Say. East side of L. Superior ; Sault Ste. Marie ; N. 



side of L. Huron ; Manitoulin Islands ; S. W. side of 



Georgian Bay. 



8. " striatella, Anthony. East shore of L. Superior and north 



of L. Huron ; Grand Manitoulin Island. 



9. " lineata,Ssiy. East shore of L. Superior; Sault Ste. Marie; 



Bruce Mines ; Mississaugi River ; Grand Manitoulin 

 Island. 



10. " labyrinthica, Say, Batch-ah-wah-nah Bay ; Sault Ste. Marie ; 



Mississaugi River ; Grand Manitoulin Island. 



11. " chersina, Say. Bruce Mines. 



12. " fuliginosa, Griff. S. W. side of Georgian Bay ; Sarnia. 



13. Succinea ovalis, Gould. Tequamenen River (near "Whitefish Point) ; 



Mississaugi River ; Grand Manitoulin Island ; Sarnia. 



14. " avara, Say. Manitouwaning Bay. 



15. Bulimus harpa, Say. Bruce Mines. 



16. Vertigo—-—. Various localities on the East side of L. Superior. 



Fresh- Water Gasteropoda. 



1. Physa heterostropha, Say. Numerous localities on the south side of 



L. Superior; Goulais River ; Sugar Island ; Manitou- 

 waning Bay ; White Cloud Island ; Owen Sound ; 

 Sarnia. 



2. " elongata, Say. Township of Nottawasaga. 



3. Limncsa stagnalis, Lam. L'Anse ; Grand Marais ; Grand Island ; 



Sarnia. 



