142 
SPECIFIC 
Specimen white, with purplish brown points and 
spots, and five whitish transverse bands irregularly 
spotted ; interior surface polished, lilac ; aperture 
broad ; beak open, hollow. 
Inhabits the American and Indian Ocean. 
This species resembles a Murex, but the canal 
is wide, and not contracted at its entrance to the 
aperture, the latter gradually, and not, as in a true 
Murex, suddenly opening into the beak ; the outer 
lip is nearly straight, and not compressed towards 
the columella at the lower part of the body. This 
shell cannot therefore be considered as belonging 
to Murex, or any other than the genus Bulla ; — 
no other, besides these two, possessing an elon- 
gated straight beak. 
Fig. 7. B. Ampulla. 
Shell rounded, opaque ; vertex umbilicate. 
Lister Conch. Tab. 713. Fig. 69. 
Specimen pale reddish brown, mottled with 
cinereous spots, and marked with two darker 
bands ; columella covered with the inner lip, white. 
Inhabits all seas. 
The variety to which the figured specimen 
