GENUS BUCCINUM. aS. 
lowest whirl. Aperture pretty large, ovate, violet colored or 
chestnut, dilated towards the middle ; right lip sharp, denticu- 
lated within. Left lip thick, and partially covering the colu- 
mella in its whole extent. Epidermis thin, of a greenish or 
reddish brown, and beneath are perceived transverse zones, 
and spots of a slate or violet gray color, with a decurrent 
‘white band, articulated with brown or bay-colored spots upon 
the suture. 
Length 9 lines. Width 43 lines. 
Inhabits the Mediterranean, the coasts of Southern France, 
of Sicily and of Corsica; where it is found in great abundance 
upon the rocks which bound the shore. 
This species has been described and figured by Payreaudeau 
in his Catalogue de la Corse, p. 160, pl. 8, fig. 7, 8, 9, under the 
name of Bucctnum Cameihi; by Blainville, who united it to his 
Buccinum corniculum in the Faune Francaise, p. 183, pl. 6, B, 
fig. 5, 5, A, and by Risso, who called it Puanaxts olivacea. 
The form of the shell varies little; but not so the size and 
color: some specimens remain invariably smaller, with more 
apparent zones, and of a blackish brown color, the spots and the 
edge of the right lip of a dull white: we give a figure of them, 
pl. 17, fig: 62. Others present a variety of the same size, upon 
which the bands are no longer apparent; the shell is then covered 
with reddish spots upon a rose white ground: these small points 
often run together into undulating, longitudinal lines. 
A third variety is very remarkable for its deep black color; 
we have represented it, pl. 17, fig. 63. Numerous pretty fine 
transverse strie cover its whole surface, and whitish spots sur- 
round the base of the suture. Finally, there are others which 
are of a straw color, and upon which the bands are scarcely to 
be seen. 
It also sometimes happens, but very rarely, that the type spe- 
cies has upon the lowest whirl, pretty numerous and strongly 
prominent longitudinal folds. (Gualtieri, pl. 43, fig. P). 
