58 GENUS BUCCINUM. 
58. BUCCINUM OLIVACEUM, Bruce. The Olive-colored Buc- 
cinum. 
(Collect. Mass. Lam.) Favane, Conch, pl. 33, fig. K-2. 
Pl. XV, fiz. 53. 
B. testA ovato-conica, rufo-fuscescente aut olivaceda, levi, basi transverse 
sulcata, prima etate longitudinaliter plicata et transversé striata ; apertura 
ovata, albescente ; labro dextro crasso, extls marginato, intus striato. 
Shell ovate, conical, of a reddish or olive color, composed 
of eight or nine whirls, the lowest of which composes nearly 
half of the shell; it is smooth, slightly arcuated, and often- 
times ornamented upon each whirl with a whitish band. When 
young, it is marked with convex, longitudinal folds, which are 
intersected at the base of the lowest whirl only, by five or six 
pretty deep transverse strie; upon the upper whirls the folds 
are much more close, and also more prominent, than upon the 
lowest, where they oftentimes disappear altogether. The 
edge of the aperture is whitish, ovate, notched at both ends, 
the cavity of an ash color; the notch above is small, placed 
upon the upper edge of the right lip, where it is contracted 
to the form of a small canal; the emargination of the base is 
arched ; right lip thick, margined exteriorly, crenulated indis- 
tinctly upon the lower edge, and marked within with very 
distinct, transverse strie. ‘The left lip is continued in front, in 
a thin leaf which extends a little over the columella: it is 
smooth interiorly, and edged throughout its whole ne with 
a row of small drops. 
Length | inch 9 lines. Width 10 lines. 
Inhabits the seas of the Antilles at Guadaloupe, the Indian 
Seas at Ceylon, and the coasts of Chil. 
When the specimens of this species are young, the longitudi- 
nal ribs are very prominent upon the whole shell, and the trans- 
verse strie are very numerous and very approximate; they are 
effaced by age. The coloring is sometimes whitish near the 
