Gulf of St. Lawrence. 215 



seem to be about equally numerous. Where land lias been re- 

 cently cleared and burnt over, their withered shells may be seen 

 strewed in thousands over the surface of the soil. In the valley 

 of the Marcouin they were observed to extend 12 miles inland, 

 which was farther tlian at any other place. The height at which 

 the last specimen was found was about 1500 feet above the sea, 

 as indicated by the barometer which we had with us. The young 

 from the size of a grain of duck shot to half that of the adult 

 shell were met with in our journey up this valley in the end of 

 Julv. 



H. arborea. — This and the next species are probably the most 

 abundant snails in the Ottawa valley and all along the Lower St. 

 Lawrence from Kamouraska to Ga-pe Bay, and in every part of 

 the peninsula which we visited, and also around Lake St. John at 

 the head of the Saguenay. Both these species exist on the Island 

 of Anticosti, as I found specimens of them imbedded in fresh- water 

 shell marl which Mr. Richardson brought from there in 1856. 

 They are amongst the commonest land shells at Montreal and 

 Point Levi, although they may not appear to be so owing to their 

 small size. 



H. striatella. — Found everywhere with the preceding species. 



H. lineata. — L'Orignal, Augmentation of Grenville, Carillon, 

 Montreal Mountain, and in many localities along the St. Lawrence 

 from Berthier to Marsoni River, Ga«pe. 



II. labyrinthica. — L'Orignal, Riviere du Loup (en-bas), Green 

 Island, and a few localities in Gaspe. 



H.pulcheVa.— Carillon, Montreal, Berthier, mouth of Magdalen 

 River and Dalhousie. 



H. electrina. — Carillon. 



H. chersina. — L'Orignal, Trois Pistoles, Ste. Anne, Marcouin, 

 Magdalen River and mouth of the Matapcdia. 



Bulimus lubricus. — Montreal, Riviere du Loup, Trois Tistoles, 

 Metis Lakes and Campbellton, mouth of Restigouche River. 



B. harpa. — Metis, mouth of Magdalen River, and very abun- 

 dant in t lie Marsoni valley. 



Vitrina pellucida. — Riviere du Loup, Trois Pistoles and Ste. 

 Anne. 



Succiwa ovalis. — L'Orignal, Metis, Matan and Ste. Anne. 



S. avara. — L'Orignal, Matan, mouth of Magdalen River, and 

 along the Ristigmche, near the mcuth of the Patapedia. 



■S. obliqua. — Abundant in the Ottawa valley, at Montreal, 



