GENUS BUCCINUM. QO] 
whirls, somewhat flattened at their upper part, ornamented 
with longitudinal, spinous folds ; the lowest whirl supports two 
or three rows of spinous, distant tubercles ; besides, the whole 
shell is crossed by pretty fine, transverse strie, more apparent 
towards the base. Aperture sub- rounded ; right lip margined 
externally, and striated internally. The color of this shell is 
grayish, with irregular transverse bands of a slate or violet 
color. The tubercles are sometimes white, and oftentimes 
brown lines cross them. 
Length 7 lines. Width 4 lines. 
Inhabits 
This species is easily known by the rows of tubercles which 
cover almost its whole surface. 
94, BUCCINUM ARCULARIA, Liny.,Gmet. The Casket Buc- 
cinum. 
(Collect. Mass. Lam.) Last., Conch., p. 970, fig. 24. 
Pl. XXVIII, fig. 115. 
B. testé ovata, ventricosd, crassA, cinereo-cerulescente, albo aut fusco 
fasciata ; ultimo anfractu turgido, tuberculis coronato; anfractibus spire 
longitudinaliter grosséque plicatis; labro ints striato; columella arcuata, 
callosa. 
Shell ovate, ventricose, pretty thick, composed of six or 
seven flattened whirls, angular above, and the lowest of which 
forms of itself half the shell; this whirl is very much inflated, 
and furnished externally aaa thick, longitudinal, distant folds, 
which are intersected by transverse strie ; the upper extremity 
of each fold is terminated by a conical tubercle, sometimes 
separated from it by a transverse stria which divides it super- 
ficially into two. The upper whirls are convex, loaded also 
with compact folds and transverse strie; but in these the 
tubercles are slightly perceptible, and upon some specimens 
not at all. Aperture ovate, white, terminated at the summit 
