98 ON THE LAND AND FRESH-WATER 



Locality, Point Levis. — Band of limestone, A3, referred to» 

 in Sir W. E. Logan's " Remarks on the Fauna of the Quebec group 

 of Rocks and the Primordial Zone of Canada," addressed to Mr. 

 J. Barrande, dated Montreal, 31 st Dec. 1860, and printed in the- 

 Canadian Naturalist and Geologist of that year. 



I have in the mean time referred this species to Olenus, although 

 at one time inclined to refer it to Conocephalites, (Sub-genus).. 

 Should it be found necessary to institute an intermediate generic 

 form, whatever place Naturalists may assign it in the animal king- 

 dom, I propose that it be named Loganellus Quebecensis. 



Dedicated to Sir W. E. Logan, F. R. S. &c, &c, 



Director of the Canadian Geological Survey. 



Art. IX. — On the Land and Fresh-water Mollusca of Lower 

 Canada ; by J. F. Whiteaves, F.G.S., &c. 



(Read before the Natural History Society of Montreal.) 



Part II. — List of Species Inhabiting Lower Canada, 



The writer of this list wishes to acknowledge his obligations tc 

 many of the most eminent United States conchologists for practical 

 suggestions and assistance. Mr. Temple Prime has kindly inden- 

 tified the Cycladidse ; The writer is also indebted to Messrs. Bland, 

 Binney, J. G. Anthony, I. Lea, A. D. Brown, Tryon, and others, for 

 critical advice and sympathy. 



In the nomenclature of the Unionidse, the names given by 

 Rafinesque have been retained; these having priority. The writer 

 has been unable to see why Lamarck's short, insufficient diagnoses 

 of species in this difficult family, should be preferred to the exclu- 

 sion of the earlier descriptions of the author of " the Bivalve Shells 

 of the Ohio River." 



As the Lower Canadian Cycladidse seem very little understood,. 

 Mr. Prime's careful descriptions of these somewhat intricate shells 

 have, with his consent, been added ; together with wood-cuts, 

 taken from original drawings. 



Note. The following abbreviations have been made use of in citing: 



the authority for each species in Lower Canada : — R, B. (R. Bell) : 

 W. D. (W. D'Urban) : E. B. (E. Billings) : R. J. F. (R. J. Fowler) t 

 J. F. W. (J. F. Whiteaves) : W. C. (W. Couper) M. de V. (M. der 

 Yilleneuve). 



