179 
D, p. 219.—Rather slender, pointed, white, quite 
smooth; whorls six, much swollen, divided by a very 
broad and deep band, which is flat at the bottom or 
concave in a slight degree and not angular as in most 
other shells, giving the whorls the appearance of being 
disunited ; aperture suborbicular, pillar lip reflected 
with a perforation behind it. 0,20...0,07. Scotland. 
rare. 
** Outer lip not thickened by a rib. 
C. Laziosa. F. p. 307.—Turso L. Mont. p. 400. 
4,13. f. 7.—Inn, T. 8. p. 164.—Dor. Cat. p. 149. €. 
18. f.16.—D. p. 840.—T. MremBranacevs. Adams. 
in Iain. T. 5. p. 2. t. 1. f. 14,5.—Turt. D. p. 203.— 
Somewhat conic, tapering to rather a fine point, pale 
horn-colored, sometimes with oblique obscure brown 
lines, semitransparent, usuaily purple at the tip; 
whorls six or seven, slightly rounded, well defined, 
with from fifteen to eighteen longitudinal more or less 
distinct and rounded ribs on the two last but one 
volutions, and on the upper part of the body whorl, 
smooth elsewhere ; mouth glossy, oval, dilated, equal to 
half the length of the shell, rounded below; lip ex- 
panded, thin, a little reflected; pillar lip spread ; 
columella within undulated and forming a slight eleva- 
tion. ¢...0,08. Common. 
