Pseudorbis granulumPseudorbis granulum is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.DescriptionThe size of the shell varies between 0.8 mm and 1.5 mm. The shell is scarcely unibilicated. The aperture is circular. The surface is spirally costate, not cancellated.DistributionThis marine species is found in the Mediterranean Sea, originally off Sicily and recently off the Isla [de Alborán|Alboran Island].