See text Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.

This re-arrangement was based on anatomical characters and a dataset of molecular sequences of three gene fragments[3] This family is a rather heterogenous group, with wide-ranging varieties in their properties.

The smooth columella has a strong (one to three plicae) to obsolete plication upon the middle.

The aperture is elliptical to oval in shape and it has a short to moderately long (e.g. Zemacies excelsa) siphonal canal and a deep anal sinus.

The vestigial or fully developed operculum has a terminal nucleus, and may be missing in some species.