74 GENUS BUCCINUM. 
75. BUCCINUM UNIFASCIATUOM, Nosis. The One-Banded 
Buccinum. 
(Collect. Mass.) 
Pl. XIV, fig. 50. 
B. testa ovato-conica, elongata, nitidd, luteo aut fulvo-albidd ; anfracti- ¢ 
bus convexiusculis, tenuissimé plicatis, transverse striatis; apertura ovata, 
albidé; labro dextro crasso, intus dentato; columella alba, arcuata. 
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‘Shell ovate, conical, elongated, polished, spire composed of 
seven pretty distinct, but slightly convex whirls, ornamented 
with numerous deeply furrowed folds; the folds of the lowest 
whirl are gradually effaced by age, and sometimes completely 
disappear. ‘These folds are crossed by very fine and very 
numerous transverse strie, colored with articulated, elongated, 
brown and whitish spots; the strie of the base are more 
strongly prominent. Aperture ovate, whitish ; right lip thick, 
denticulated internally. Columella white, arcuated, with a 
few guttules at its base. The general color is of a yellowish 
white, or fawn-color, with a brown, decurrent band above the 
suture, and a single other at the middle of the lowest whirl, 
like a girdle. 
Length 9 lines. Width 4 lines. 
Inhabits the Mediterranean, on the coasts of Sicily. 
This species seems to resemble the Bucctnum Cuviert ; and 
it would be well to regard it as a local variety of that ; never- 
theless, there is an essential difference between the two shells; 
it consists in the very marked transverse band upon the lowest 
whirl of the B. unifasctatum, which induced me to give it that 
name, and its size, which is double that of the Buccinum Cuviert. 
The One-banded Buccinum presents, also, in itself, some va- 
rieties of-color. Some specimens are of a straw-yellow, and 
sometimes they have not the transverse band; others, in which 
the band is slightly apparent, have longitudinal spots upon 
strongly marked transverse strie, of a dull white. 
