THE ECONOMIC MOLLUSCA OF ACADIA. 
35 
Works of Reference. 
E. Ingersoll. “ History and Present Condition of the Fishery 
Industries,” U. S. 10th Census, pp. 232-233; also, “ Natural 
History of Useful Aquatic Animals,” p. 697. 
6. Bucciniim iiudatum Linnaeus. 
Whelk, Long Whelk. 
[Buccinum, a trumpet; undatum , waved.] 
Distribution, (a) General ; — Above low-water mark to 
six hundred and fifty fathoms (Verrill); New Jersey to Arctic 
Ocean and around North Atlantic to Great Britain and 
France. 
(b) In Acadia ; — (in N. B.) abundant everywhere on Char- 
lotte County Coast; Northumberland Strait, Whiteaves. (In 
N. S.) Annapolis Basin, moderately abundant, Verier uzen ; 
whole coast, Jones. Prince Edward Island, Daivson. Probably 
abundant around the entire coast of the three provinces. 
Habits. It has been considered by some writers that our common 
shore Whelk is not the same species 
Europe. But those who have given 
the question the most recent and most 
careful study consider them identical; 
and in any event, it does not matter for 
our present purpose which is the case. 
They are so nearly alike in all respects 
that they are one so far as their uses to 
man are concerned. 
As would be expected from the great 
variety of conditions as to temperature, 
depth, freshness of water, etc., under 
which it is found, this species is quite 
variable in form, size and color. Yet 
it presents characteristics which enable 
it to be always readily distinguished 
when once a student becomes acquaint- 
ed with it. 
The only littoral shell with which it 
can be confounded is Purpura lapillus. 
But, unless quite young, it is much 
larger than the latter, an average size 
3 
as the Buccinum undatum of 
Fig. 6. — Buccinum. undatum. 
Natural size. 
being three inches in length. 
