182 



Sir J. W. Dawson, who has made a special study of the recent and fossil 

 Buccinums of eastern Canada, says that B. undatum is found fossil in the 

 Saxicava sand and Leda clay of Maine ; Duck Cove, St. John, N.B ; Anti- 

 costi. Riviere du Loup ; and Labrador. In regard to the Canadian specimens 

 that he refers to B. undatum, he adds the following remarks. " I cannot 

 satisfy myself that there is any good specific distinction between this shell 

 and B. undatum of the European seas and glacial beds. " It varies very 

 much in size, in slenderness, in the fineness of the spiral striation, in the 

 development of the ribs, in the extension of the mouth, and in the thickness 

 of the shell. The coarser forms are B. Lahradoricum, which passes into the 

 ordinary undatum. Medium varieties are B. undulatum, and smooth 

 varieties pass into B. cyaneum and B. Totteni, which last is the ciliatum of 

 Gould."* 



BucciNUM ToTTENii, Stimpson. 



Buccinum ciliatum (pars) Gould (1841) ; but not Iritonium 



ciliatum of O. Fabricius. 

 Buccinum ciliatum, Dawson (1857) ; non Fabricius ; fide Verrill. 

 Buccinum Tottenii, Stimpson (1865) ; et auct. Am. 



Little Metis, Tadoussac, and Murray Bay (Sir J. W. Dawson). Henley 

 Harbour, Chateau Bay, — and Temple Bay, Labrador, in 8 to 15 fathoms, 

 " three shells corresponding to the Canadian form from off Metis," — Stearns 

 expedition (Miss Bush). 



Fossil in the Saxicava sand and Leda clay at Riviere du Loup (Sir J. W. 

 Dawson). 



In the remarks that follow the original description, Dr. Stimpson says of 

 B. Tottenii that it is " allied to B. Humphrey sianum, but differs in its 

 plicated and more convex whorls, deeper transverse sculpture and want of 

 colour. It might be taken for a thin and delicate form of B. undulatum, 

 but is easily distinguished by the number and straightness of the longitudi- 

 nal plications of the spire- whorls, the more numerous and sharply cut trans- 

 verse ridges, and the wider mouth. From B. ciliatum it differs very much, 

 both in shape and in the want of a tooth-like fold on the columella. "f 

 Verrill, however, thinks that the B. Humphreysianum of Stimpson is not 

 B. Humphreysianum, Bennett, and calls the former B. Goiddti. Sir J. W. 

 Dawson says that B. Tottenii " is remarkable for its very regular spiral 

 lines, absence of folds, and convex whorls." 



The Canadian Ice Age, page 255. 



Canadian Naturalist and Geologist, New Series, vol. ii., pp. 385 and 38&, 



