49 
FUSUS bifaciatus. 
TAB. CCXXVIII. 
Spec. Char. Elongated, rugosely reticulated; vo- 
lutions keel-formed ; base produced. 
For a Fas as this is rather a short shell; the keel-like 
form of the whorles gives them two flat faces, from which 
the name is taken ; the last whorle is slightly ventricose ; 
the beak short, and rather broad at its commencement. 
Of this rare shell I have only one mutilated individual, 
which is from Highgate ; the lip is very imperfect, so 
that it is not to be positively determined whether it have 
a sinus towards its upper part, and so be a Pleurotoma 
of La Marck, or not It somewhat resembles the figure 
in Brander of Strombus errans (fig. 42) of which I have 
not seen a specimen. 
