Gulf of St. Lawrence. 213 



P. aurea. — L'Orignal and Carillon on the Ottawa, Lachine 

 Canal, Montreal, and several localities in the County of Rimouski. 



P. ancellaria. — L'Orignal and near Rimouski village. 



P. elongata. — L'Orignal, Montreal, Green Island, Metis and 

 Ste. Anne (Gaspe.) 



Limncea megasoma. — This fine species was found by Mr. Bil- 

 lings in the Bonneehere River, and by myself in a creek near 

 Hawkesbury Village, where it was rather abundant. 



L. jugular is (stagnalw). — Plentiful iu many streams and small 

 lakes on the south side of the Ottawa and in the St. Lawrence 

 near Montreal, and extremely abundant in the Metis Lakes in the 

 county of Rimouski. 



L. caperata. — St. Lawrence near Montreal, and very plentiful 

 in Lake, Matapedia. 



L. umbrosa. — Common in ponds between Montreal and Lachire, 

 and near Ste. Anne, (Gaspe) at which place I found an individual 

 having its aperture turned to the. left side. 



L. elodes. — 1 his is by far the most common Limnasa inhabiting 

 stagnant waters in the Ottawa valley and about Montreal, but as 

 it is a variable species, I am uncertain whether it occurs or not 

 among those collected below Quebec. 



L. catascopium. — Rimouski, Ristigoueheand Dartmouth River?. 



L. opacina. — St. Lawrence, between St. Nicolas and St. An- 

 toine ; alive and pretty abundant at low tide at Point Levi, in the 

 Metis River above the high fall, Rimouski and White Rivers. 



L. acuta. — This is the most abundant species in the shell mail 

 from Marl Lake, x\nticosti. 



Ancylus rivularis. — Old quarries near the mile end toll-gate, 

 Montreal. 



PaJudlna decisa. — South Nation River, L'Original, Lachine 

 Canal and St. Helen's Island. 



Melania acuta. — St. Lawrence, near Montreal and Varenues. 



M. Niagar&nsis. — Same localities. 



Amnieola porata. — Occurs in marl from the Lachine railway 

 and Shefford mountain, and was found living in Little Lake, 

 Matapedia (County of Rimouski.) 



Valvata triearinata. — Abundant in marl from Fhilipsburgh, 

 St. Armand ami the Lachine railway, and inhabits Lake Mata- 

 pedia. 



V. sinccra. — Marl Lake, Anticosti. 



