See text Marginella is a very large genus of small tropical and temperate sea snails, marine gastropod molluscs in the subfamily Marginellinae of the family Marginellidae, the margin snails.

[1] The shells of species in this genus are rounded, smooth and glossy, with a large aperture that appears to be toothed because it shows the edge of the columellar folds.

The shells of the species in this genus have spires which range from moderately elevated to flattened.

The outer lip is thickened, and generally denticulate inside, with distinct teeth or folds.

The foot is large and flat, and when it is extended is slightly longer than the shell.