AG GENUS BUCGINUM. 
of the summit, in such a manner as to leave not more than four 
or five whirls, and it is only in this state that it is commonly 
found in collections. . 
45. BUCCINUM GERVILLII. Gerville’s Buccinum. 
(Collect. Mass.) Payr., Cat. de la Corse, pl. 8, fig. 21. 
Pl. XIII, fig. 43 et 44 var. 
B. testa elongata, levigatd, subturritd, fulva vel rubro-fuscescente : an- 
fractibus convexo-planis, superné punctis albis maculatis ; apertura angusta, 
violacescente ; labro dextro tenui, intis dentato. 
Shell pretty thick, smooth, narrow, elongated, subturreted, 
formed of eight or nine slightly distinct roundish whirls, of a 
fawn color or more or less deep brownish red; some white 
spots, formmg a sort of zone beneath the sutures. Aperture 
whitish, delicately shaded with a pale. violet, rather small, 
narrow, terminated by a straight canal, short, and very slightly 
effuse at its extremity. Right lip thm and sharp; the internal 
edge denticulated. Columella lip covered in front by a point- 
ed callosity, which partially conceals the strie of the base of 
the lowest whirl, and exhibits a row of five or six small gut- 
tules. Sometimes these do not exist. 
Length 7 lines. Width 23 lines. 
Inhabits the Mediterranean, the coasts of Provence, Corsica, 
and Sicily. 
M. Payreaudeau first made us acquainted with this shell, 
but he improperly placed it among the Mitres, for it has not 
prominent folds upon the columella. Risso classed it as a 
Purpura, in his work upon the productions of Southern Europe, 
and Blainville as a ConumBexua in his Faune Franeaise; with 
the last genus it has some affinity ; nevertheless, it has not so 
narrow.an aperture, nor the swelling of the lip so prominent; on 
the contrary, this part, in his Buccinum, is effuse. It presents, 
also, several varieties of color, and some specimens are found 
