GENUS BUCCINUM. Q7 
cavity ; the emargination is very oblique, accompanied exter- 
nally by a thick, rounded, and twisted varx, which, revolving 
around the axis, terminates below the folds of the columella ; 
this is slightly arcuated ; one or two oblique folds are delineat- 
ed at its base. 
Length 1 inch 9 lines. Width 9 lines. 
Inhabits the Indian Ocean, the coasts of the Island of Am- 
boyna, the Moluccas, and New Holland. 
Lamarck had also separated this shell from the Buccrnum of 
Linneus, to place it in his genus CANcELLARIA, under the name of 
CanceLuarta senticosa. The folds which exist at the base of the 
columella, and the asperities which cover the entire surface of 
the shell, induced him to place it in this manner ; but the folds 
are always more numerous and more prominent in the genus 
where he arranged this species. Lately M. Quoy has made 
known, in his beautiful work, the organization of the animal, 
and he has accurately marked out the place which the’ shell 
should occupy, by placing it anew in the genus Buccinum, to 
which it belongs. 
This shell is very remarkable for its form, and particularly 
for the asperities which we have described. Lamarck points 
out a variety of this species under the letter B; but the diffe- 
rences which he remarked, were produced only by the greater 
freshness of the specimen which he had observed. 
28. BUCCINUM TIGRINUM, Notis. The Tiger Buccinum. 
(Collect. Mass.) 
PI. X, fig. 32. 
B. testa ovata, elongata, subturricula, fulvescente ; spird conicd, acuta, 
plicis rotundatis transversis cincta, longitudinaliter maculis spadiceis et 
fusco-albidis , anfractibus convexiusculis ; apertura alba, ovata, elongata ; 
columella crassa, alba ; labro dextro tenui. 
Shell ovate, elongated, subturreted, generally of a clear 
fawn color, marked with numerous spots of a deep chestnut 
