Shell small subcylindrical, with raised flat or sunken spire; aperture as long or nearly as long as the shell, narrow above, dilated below. Columella with or without a small fold.

Shell small, subcylindrical, imperforate, with slightly raised flat, or depressed spire, the aperture as long, or nearly as long, as the shell, narrow above, dilated below. Columella thickened, with a small fold or none. The species of this genus might be distributed into two groups, as Fischer has done. Part of them have a distinct fold on the columella. The other species have no distinct columellar fold, although the pillar-lip is thickened; and these fall into Utriculus as understood by Sars, Fischer, Dall, and others. (Tryon and Pilsbry, Manual of Conchology.)