Euspira triseriataEuspira triseriata, the spotted moonsnail, is a species of predatory sea snail, a marine gastropod mollusc in the family Naticidae, the moon snails.DistributionThis species occurs in the Northwest Atlantic Ocean.DescriptionThe maximum recorded shell length is 33 mm.HabitatMinimum recorded depth is 0 m. Maximum recorded depth is 274 m.