Shell small, conoidal, smooth, pearly, perforate, aperture rounded, with an angle at the base, operculum few-whorled.

It is chiefly on account of the peculiar radula, that I have located the only species in a new genus. Conchologically it resembles Margarita, were it not for the angular aperture. It may prove to be only a young shell, but a similar radula I have only found in what I describe with some doubt as a Basilissa and in the type of that genus; however the differences of the radulae are too obvious, to join them in one genus.

A detailed description of the radula you find under the type of this genus: Guttula sibogae.