Linopyrga tantilla is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

The seven post-nuclear whorlsare strongly shouldered, moderately rounded, rather high between the sutures, and appearing somewhat constricted at this point.

Fourteen of these ribs occur upon the second, twenty-three upon the fourth, and thirty-two upon the penultimate whorl.

The periphery and base of the body whorl are well rounded, sculptured, like the spaces between the sutures, by the axial ribs which continue prominently to the narrow umbilicus, and six subequal and subequally spaced spiral threads, with an indication of a very weak seventh within the narrow umbilicus.

The columella is slender, decidedly curved, and somewhat revolute, with a prominent oblique fold near its insertion The parietal wall is covered by a very strong callus, which gives the periostracum a complete appearance.