52 
TAS. XX. 
STROMBUS SLOANIL 
S. anfractu basilari levis, basi longitudinaliter undu- 
lato-sulcato, apice processibus quadratis, compres- 
sis, elevatis ; anfractibus superis; nodosis, longitu- 
dinaliter lineatis, lineis elevatis. 
Habitat ——--—-? 
Mus. Brit. 
SLOANE’S STROMBUS. 
Basal whirl smooth; base with longitudinal undulating 
grooves ; apex with elevated, compressed, quadrate proces- 
ses; superior volutions knotted, longitudinally lineated, 
the lines elevated. 
This shell has been considered as an accidental variety of 
Strombus Pugilis; but the distinctions between them are so 
strong, that I cannot accede to the opinion, although 
it is entertained by some eminent conchologists. The pro- 
cesses on the apex of the first volution, are for the most 
part marked beneath with a deeply-impressed groove, and 
those situated nearest to the base, are slightly hollowed on 
the inner side of the shell. 
