GENUS BUCCINUM. 41 
are often divided and orbiculated in their outline. The color 
of all these shells is generally the same as that of our type. This 
variety is found upon the coasts of Brazil, and in the Bay of Rio 
Janeiro. 
The variety A, pl. 12, fig. 41, is the Buccinum strigosum of 
Gmelin, and the Buccinum fumosum of Solander ; it has been 
figured by Chemnitz, pl. 123, fig. 1145-1146. Smaller, wrinkled, 
and folded throughout its whole length, this exhibits the threads 
across it forming nodosities ; the interstices of the longitudinal 
folds more deeply furrowed, are of a more reddish color. The 
differences in this last, are more remarkable than in the others: 
they may be attributed to difference of sex; a point which we 
have carefully examined in the Bucctnum undatum, whose 
oblique ribs and transverse striz are also, under the same cir- 
cumstances, much more developed. 
I think that the Buccinum Indicum of Gmelin, p. 3495, and 
figured in Chemnitz, pl. 103, fig. 1188-1139, which appears to 
me to be a shell in a bad state of preservation, should. be con- 
sidered as a Buccinum undosum. 
41. BUCCINUM D’ORBIGNYJ, Parr. D’Orbigny’s Buccinum. 
(Collect. Mass.) Payr. Cat. de la Corse, pl. 8, fig. 4, 5, 6. 
| Pl. XIII, fig. 42. 
B. testa ovato-acuta, subfusiformi, fulvo et fusco varia, longitudinaliter 
costata, transversim plicata et striata, subnodulosi ; anfractibus inferné 
linea alba cinctis; apertura ovata, violacead ; labro intus striato. 
Shell ovate, subfusiform, pointed at its summit, composed of 
eight very distinct whirls, a little swollen, ridged lengthwise 
by several subnodulous folds, covered also by transverse striz 
and ridges; aperture ovate, violet, edged with reddish, and 
narrowed at its base ; right lip deeply furrowed within; colu- 
mella nearly straight, subgranular ; rarely having a distinct 
fold at the. base. 'The general color is brown, varied with 
fawn color, with a white zone at the base of each whirl, a 
broader decurrent band towards the middle of the lower whirl. 
