Small, cylindrical shell of 5 to 6 whorls; protoconch smooth, depressed; ultimate whorl three times length of spire, tapering convexly
to base; whorls gradate, sharply shouldered with flat to slightly inclined ramps; surface smooth; apical angle of 80 degrees.
In ventral view, pygofer stout, slightly concave medially, widening laterally; dorsal margin caudad obliquely raised in lateral view, inferior part with bristles; lateral lobes symmetrical, medium-inferior part arched convexly
in lateral view.
Circular projections extend convexly
on the flexible plastic sheet's upper surface, occupying approximately 5-70 % of the total surface area of the sheet.
deforms the absorbent laminate toward the skin-contactable side.
The liquid-absorbent core is formed in a transverse middle portion with a protuberant region convexly
curved toward a body side of the napkin.