Rissoina krebsiiRissoina krebsii is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae.DistributionThis species occurs in the Gulf of Mexico off Cuba.DescriptionThe maximum recorded shell length is 4.5 mm.HabitatMinimum recorded depth is 0 m. Maximum recorded depth is 45 m.