Serrata summa
Serrata summa is a species of sea snail, a marine gastropod mollusc in the family Marginellidae, the margin snails.
The name comes from the Latin summus, similar to the English summit, referring to where the species was found, which was on the crest of a seamount.
Description
The length of the shell attains 4.4 mm.The shell is slender, solid, and opaque. It has a short spire and a narrow aperture. Its dimensions are approximately 4.4 x 2.05 millimeters.