Auristomia fusulusAuristomia fusulus is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.DescriptionThe shell grows to a length of 2.5 mmDistributionThis species occurs in the following locations: European waters : Western Mediterranean Sea Portuguese Exclusive Economic Zone Spanish Exclusive Economic Zone Atlantic Ocean from the Bay of Biscay to Algeria