GENUS BUCCINUM. 61 
61. BUCCINUM CRENULATUM, Bruce. The Crenated Buc- 
cinum. 
(Collect. Mass. Lam.) Prrtiver. Gaz., t. 64, fig. 8. 
Pl. XXIM, fig. 90 et pl. XIV, fig. 49 var. 
B. testa ovato-conica, longitudinaliter plicaté, transversim tenuissimé 
striata, varie colorata, fasciis rufo-fuscis picta ; anfractibus superné angula- 
tis, supra complanatis, ad angulum crenulatis; apertura ovata, albescente, 
superné angustata ; labro dextro superne emarginato, intus striato. 
Shell ovate, conical, whitish, ashy or reddish, oftentimes 
with two brown bands which are sometimes interrupted ; spire 
formed of seven or eight distinct whirls, flattened above, fur- 
nished with longitudinal, almost perpendicular folds, which are 
themselves intersected by strie visible only in the interstices 
of the folds, except towards the base, and upon the whirls at 
the top of the spire. The upper edge of the whirls is flatten- 
ed, and bordered by rounded tubercles, which are separated 
from the longitudinal folds by a deep stria running below 
them. Aperture ovate, whitish, contracted at the top by a 
transverse fold of the left lip. ‘The right lip is emarginated at 
its upper edge, marked interiorly with transverse strie in great 
numbers. ‘The left lip is obliterated and flattened at its sum- 
mit; it gives rise from the middle to the base to a pretty thick, 
projecting callosity, in the form of a keel. 
Length 14 lines. Width 7 lines. 
Inhabits the Indian Ocean. 
This species presents a great number of varieties; in young 
specimens the color is deeper ; the transverse brown bands are 
more marked, and appear upon all the whirls; the shell has 
also, proportionally, a more globular form. Other specimens 
are of an uniform color, have the whirls strongly canaliculated, 
and the longitudinal folds more approximate. We give a figure 
of one of these last pl. 14, fig. 49. 
