GENUS BUCCINUM. 29 
moderate size, narrowed at the base, forming at its upper part 
a canal, with a sinus bounded by two teeth behind; columella 
smooth, almost straight, with two fold-like guttules at its ter- 
mination ; right lip denticulated, and folded internally. 
Length 8 lines. Width 4 lines. 
Inhabits New Holland, and the Island of Tonga-Tabou.. 
De Blainville, in the Ist volume of the Nouvelles Annales du 
Muséum, page 254, pl. 12, fig. 9, has united this pretty little 
shell to the genus Purpura, under the name of Purpura glivina. 
Quoy and Gaimard, who brought it from the island of Tonga- 
Tabou, figured it about the same time in their Voyage autour 
du Monde, pl. 30, fig. 23, 25, under the name of Buccinum dis- 
color; we have retained the place and the name given it by 
these voyagers. 
30. BUCCINUM BLAINVILLII, Desu. Blainville’s Buccinum. 
(Collect. Mass.) Cuemn., pl. 125, fig. 1201-2. 
Pl. XI, fig. 38. 
B. testa ovata, elongatd, albescente ; spird acuta, cancellata, costulis lon- 
gitudinalibus et striis transversis decussatd ; anfractibus angustis, in medio 
carinatis ; apertura ovata, violascente ; columella rufescente ; labro dextro 
intis tenué striato. 
Shell ovate, elongated, of a yellowish white; spire pretty 
elevated, pointed, latticed ; composed of six or seven rounded 
whirls, slightly compressed, furnished with numerous, longitu- 
dinal folds or small ribs, crossed by acute and very fine re- 
volving strie ; one of these strie is more raised, and forms a 
keel upon the middle of each whirl, composed of a row of tu- 
bercles. ‘The lowest whirl is more developed, and larger 
than all the others united ; the keel of this is situated nearer 
the upper part. The aperture is ovate, elongated, slightly 
narrowed, of a violet-brown within. ‘The columella is red- 
dish, and marked with two brown spots; at its base there is a 
