Alvania dipacoiAlvania dipacoi is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.DescriptionAlvania dipacoi is a small sea snail with a shell of 2-2.6 mm in length. The shell is a spiral shape and generally an off white colour.DistributionIt can be found in the Mediterranean sea around the Tuscan Archipelago, and also around the Canary Islands and West Africa.