264 Marine Shells of Massachusetts. 
Length sometimes exceeds .65 inch; breadth .95 
inch. M 
In the young shell the outline differs from that of 
the old, being carinate upon the body whorl at the ter- 
mination of the costz, and suddenly tapering. 
This species is common, not abundant, at New Bed- 
ford and vicinity, Falmouth, Nantucket, Martha’s Vine- 
yard, &c. It is rately, if ever, found recent, north of 
Cape Cod. In some salt mud, which had de: turned 
over at East Boston, I found. a single specimen, which 
had become cretaceous. 
It is not found living above low-water ine except 
when driven ben " violent storms. ` 
Buccinum. 
B. vibex: Nasso viber, Sax. Jones. m. Nat. Se. 
I. 231. 
The number of revolving filiform lines upon the body 
whorl is more frequently nine to ten ; as many as three 
to five teeth upon the inner side of the labrum. 
Length .5 inch; breadth-.383 inch. 
This shell is rare. Say had seen but five individuals 
when he described the species in the Journal of the 
Academy. Before publishing the American Concholo- - 
gy, the author had received several specimens from 
Charleston, S. C. It occurs at New Bedford and 
vicinity, where I "have found four or five specimens. 
For an additional number I am indebted to P. G. Sea- 
bury, Esq. of New Bedford. "These specimens are all 
old, and somewhat cretaceous, but in some of them the 
. rufous bands are very distinctly marked. It has qu 
been found north of Cape Cod. 
