GENUS Bi;<M3INUM. 4J 



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, pi. 12, fig. 41, is the BUCCINUM strigosum of _ 

 Gmelin, and the BUCCINUM fumosum of Solander ; it has been 

 figured by Chemnitz, pi. 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 BUCCINUM undatum, whose 

 oblique ribs and transverse striae are also, under the same cir- 

 cunlstances, much more developed. 



I think that the BUCCINUM Indicum of Gmelin, p. 3495, and 

 figured in Chemnitz, pi. 103, fig. 1138-1139, 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'ORBIGNYI, PATR. D'Orbigny's Buccii 

 (Collect. MASS.) PAYR. Cat. de la Corse, pi. 8, fig/ 4, 5, 6. 



PI. xin, fig. 42. Mi** A^f^^J* 



B. testa ovato-acuta, subfusiformi, fulvo et fusco varia, longitudinaliter 

 costata, transversim plicata et striata, subnodulosa ; anfractibus inferne 

 linea alba cinctis; apertura ovata, violaceft ; 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 striae 

 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. 



