44 GENUS BUCCINUM.- 
43. BUCCINUM FLEXUOSUM, Lam. The Flexuous Buccinum- 
(Collect. Mass. Lam.) 
PI. XXVI, fig. 106. 
B. testa oblonga, subfusiformi, basi transversé striata, albida, lineis fuscis 
longitudinalibus flexuosis ornatd; aperturd angustiusculd; labro obsoleté 
striato. 
Shell oblong, subfusiform, spire turreted, conical and point- 
ed, composed of seven or eight folded whirls, oftentimes tuber- 
culated. - The upper edge of each whirl is very slightly com- 
pressed, which renders the sutures but little apparent. The 
lowest whirl, with neither folds nor tubercles, is as large as all 
the others together, and striated at the base. ‘The ground 
color of this shell is whitish, and there are delineated brown 
undulating or zigzag lines, more or less numerous, which det 
scend from the top to the base of the whirls. Sometimes other 
bands upon the upper whirls form delicate rhombs. Aperture 
rather narrow, attenuated at its lower extremity, and as long 
as the other whirls united. The columella is smooth, straight 
and entirely white like the rest of the interior of the aperture.. 
Right lip indistinctly crenulated. 
Length 9 lines. Width 33 lines. 
Inhabits the seas of the Isle of France. 
This shell, whose coloring is very beautiful, has not yet been 
figured; it is remarkable for its elongated form, and for the 
folds of the whirls, which give it a slight resemblance to our 
variety of the Buccinum costatum, pl. 11, fig. 37; but its form 
easily distinguishes it : it is more elongated, and never as large ; 
besides, it has a less effuse aperture, and the surface is marked 
with longitudinal, undulating lines. \ 
