Scrinium gatliffi is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.
(Original description) The small, white, solid shell is shining, elongate-oval and blunt.
The aperture is oval, slightly narrowed behind, wide in front, notched and without a siphonal canal.
The outer lip is straightly convex, with a shallow, wide sinus behind, sharp, not inflected, smooth within.
The axial accremental striae, distinct under the microscope, cross the spirals, sinuous, comparatively distant, especially on the body whorl.