« Shell minute to large, white, uniformly colored, or patterned; surface smooth, sculptured, or axially costate; spire flat to immersed, or low to tall; protoconch paucispiral; lip thickened, smooth or denticulate; external varix present or absent; siphonal notch present or absent; posterior notch present or absent; columella multiplicate, with combined total of 2 to 13 plications + parietal lirae, or with 2 internally reduced columellar plications + 1 or 2 pseudo-continuous plications… » – Coovert & Coovert: “Revision of the supraspecific classification of marginelliform gastropods”, The Nautilus vol.109(2-3), Melbourne (Fla) 1995, p.75.
 

« Shell minute to medium size, white or colored, some species with spiral bands; spire low to medium height, not immersed; lip thickened, weakly to strongly lirate, smooth in some species; external varix absent; distinct siphonal notch present; posterior notch present but often weak; columella multiplicate with combined total of 3-8 plications + parietal lirae. » – Coovert & Coovert: op. cit. p.71-72.