Shell moderately small to fairly large (16-62 mm), claviform with high, acute spire and moderately produced, obliquely truncate base, tip of siphonal canal not or shallowly indented; fasciole weak to well-developed in adult; labrum thin, although with a strong varix preceding it, anal sinus deep, openly U-shaped, sometimes slightly constricted at opening, directed somewhat adapically. occupying entire shoulder slope, bordered below by a weakly alate expansion of lip; parietal callus forming a small, rounded nodule slightly below end of aperture, generally constricting entrance to anal sinus; subsutural cord weak to absent, shoulder sulcus ill-defined and declivous; axial ribs well-developed, stopping at shoulder; often vividly patterned with brown. Protoconch narrowly domed or conical, 2-4,5 whorls, smooth, except sometimes for a few weak axial riblets near termination. Operculum oblanceolate with terminal nucleus. Radula crassispirine, marginal plates with long shaft and flattened distal end with well-defined, double cutting edges; accessory limb long.

The present genus, although greatly resembling Inquisitor (q.v.) in shell-characters, is sharply distinguished by its very different radula teeth. Only three species are undoubtedly referable here, but a third, fraterculus is associated with Funa on grounds of general shell resemblance. In known members of the genus the parietal callus does not fill the posterior angle of the aperture as in Inquisitor, but forms a discrete knob slightly below it; the upper limb of the anal sinus is also less protractive than in Inquisitor. The significance (if any) of these characters will only be understood when the radulae of more Indo-Pacific species are known. The radula of Funa somewhat resembles that found in Naudedrillia; members of the latter genus differ in their lower spire, shorter, broader base, and a parietal pad that is terminal (as in Inquisitor).