ZOOLOGICAL AND BOTANICAL ASSOCIATION. 263 



As a confirmation of this view, I would refer to the " Philosophical 

 Transactions" for 1835, in which are figured various examples of the 

 Saxicava, which Sir C. Lyell found at TJddevalla, in Sweden, and between 

 which and those of the Quebec deposit, as well as between most of the 

 other shells of both deposits, he discovered an identity, which beautifully 

 established the oneness of geological age of two drift formations of so 

 widely separate localities as Canada and Scandinavia. I think I shall 

 be agreed with, after a comparison of these plates with those of Forbes 

 and Hanley, and with their description, in referring the shells to the 

 species arctica. In passing/it may be observed, that these authors, in 

 stating that they had seen inland Canadian Saxicava from Sir Charles, 

 do not say of what species. One of them presents a boring rather less 

 than that of the Saxicava already noticed, and betrays the presence, per- 

 haps, of a different species of Purpura, to which these borings, I believe, 

 are generally referred. The boring into the Saxicava is wider on the 

 outside coat of the shell than even the one-eighth of an inch which I 

 have mentioned as the diameter, while that on the Tellina is a clean 

 boring of the same diameter outside as within the shell. As Messrs. 

 Forbes and Hanley state that the Tellina proximo, is found in the pleis- 

 tocene deposits of Canada, it may be well to mention, that this must be 

 an inadvertence for post-pleistocene formations, as there are no true 

 tertiary organic remains in Canada. See, on this subject, the first 

 Number of the " Canadian Geologist." 



The mass contains also a fragment of Mytilus edulis, retaining its 

 bright blue colour, and another fragment, which is evidently a portion 

 of a Balanus, but it is so small a portion that it does not distinguish itself 

 as to species, unless that its not appearing longitudinally striated except 

 on the inside of the base would refer it to Uddevallensis, of which Sir 

 Charles Lyell found many fragments. 



I have also a valve of Mya uddevallensis from the same locality 

 which presents the extreme shortness of the posterior end which distin- 

 guishes this variety of the well-known M, truncata. 



I found three valves of Tellina proximo, which is a characteristic shell 

 of these deposits ; their size is much beyond that of the dead British speci- 

 mens which have been dredged, being fully an inch and a half in length 

 and above an inch in breadth. They are of the variety Calcarea, noticed 

 in the Appendix to Forbes and Hanley, and correspond exactly to the 

 specimen figured in the last plate of vol. iv. 



ZOOL. * BOT. SOC PBOC — VOL. I. 2 N 



