212 Natural History of the 



Skenea costulata* — A specimen of this beautiful little species 

 uas found by Principal Dawson in examining some of the mate- 

 rial which was dredged in deep water off Marcouin. 



Diadora noachina. — Plentiful in stomachs of haddock taken 

 at Capuchin, Ste. Anne and Marcouin, also dredged in consider- 

 numbers at the latter place. 



Crepidula fomicata. — One specimen found at Dalhousie, N.B.. 

 very abundant at Carraquette. 



C. plana. — Carraquette. 



Acmosi (Lottia) testudlnalis. — Dead specimens common at 

 Riviere du L<>up, but first found alive near Trois Pistoles ; very 

 abundant along the wdiole coast and in Bay Chaleur. At Les 

 blets where the water inside of the islets becomes by the heat of 

 the sun percetibly warmer than that outside, these shells exist in 

 immense numbers and attain the diameter of 1 inch and 7 lines. 



A. cceca. — Numerous dead specimens dredged at Marcouin. 



Chiton mar morcus. — One large specimen found at Bic ; nume- 

 rous on stones and dead shell- dredged off Ste. Anne and Marcouin. 

 and found in fishes' stomachs at coves on the Gaspe coast. 



(Fresh Water.) 



Planorbis trivolvis. — L'Orignal on the Ottawa, Lachine, 

 Montreal, and in the Rimouski, Metis and Ristigouche Rivers ; 

 found also, in 1857, in Lake Kenogami, between Chicoutimi and 

 Lake St. John, at the head of the Saguenay. 



P. campanulatus. — Renfrew on the Bonnechere River, Mon- 

 treal, and in shell marl from near Philipsburgh, St. Armand ami 

 St. Rose, Terrebonne, and living in Lakes Metis and Matapedia. 



P. bicurinatus. — Renfrew, L'Orignal, Montreal, in marl from 

 Ste. Rose, Shefford Mountain and Oarleton, Bay of Chaleur, also 

 living in the Ristigouche River. 



P. lentus. — Renfrew and near Montreal. 



P. parvus. — L'Orignal and Montreal, in marl from Anticosti 

 and several localities in the Eastern Townships ; inhabits siill 

 water throughout the whole of the Peninsula of Gaspe. 



Pliysa hctcrostropha. — Mississippi River, L'Orignal, neighbour- 

 hood of Montreal, Eastern Townships, and along the south-east 

 side of the St. Lawrence below Quebec as far down as Gaspo Bay. 

 They seem to thrive as well and grow to as large a size in Gaspe 

 as anywhere else. I found a few Physas in some shell marl from 

 Anticosti, which appear to belong to this species. 



* Forbes & Hanley, Vol. III. 167; Vol. IV. 271. 



