Peristichia agria

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

Description
The shell grows to a length of 6 mm.

Distribution
This marine species occurs in the following locations:
 * Caribbean Sea
 * Colombia
 * Gulf of Mexico
 * Puerto Rico
 * Atlantic Ocean : from North Carolina to Central Brazil.