15 
BUCCINUM, Linn. &c. 
Gen. Cuar. Univalve; spiral; oval, or elongated ; — 
aperture nearly longitudinal, oblong, with a 
reflected sinus at the base of the columella. 
Columella plain, tumid. 
BUCCINUM elongatum. 
TAB. CX.—Fiig. |. 
Sree. Cuan. Shell ovate-elongated, transversely 
striated; whorls seven, rather convex, longi- 
tudinally undulated; outer lip obscurely cre- 
nulated within; mouth oval with a short re- 
curved sinus. 
a 
Twice as long as wide, the aperture is rather less than 
half the length ; the undulations upon the lesser whorls are 
tolerably regular and straight; upon the last whorl they 
are less uniform and more curved; the inner lip is smooth, 
thicker at the base. 
Some doubts may be entertained, of this being a trifling 
variety of B. undatum of Linn. with greater regularity in 
the undulations, since we know how much the B. undatum 
varies in that respect: indeed it is with much uncertainty 
I give it here as another species. The length of the spire 
may perhaps distinguish it, wherefore I have called it 
elongatum. Mr. Herbert brought this shell from Walton le 
Soken Crag-pits, Essex, in 1810. I donot at present know of 
another specimen, but would recommend further search to 
be made after fossils so nearly related to recent shells. It is 
