Rissoina redferniRissoina redferni is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.DistributionThis species occurs in the Caribbean Sea and in the Atlantic Ocean off the Bahamas.DescriptionThe maximum recorded shell length is 8.5 mm.HabitatMinimum recorded depth is 0 m. Maximum recorded depth is 30 m.