Bursa grayanaBursa grayana is a species of sea snail, a marine gastropod mollusk in the family Bursidae, the frog shells.DistributionThis species occurs in the Caribbean Sea and the Gulf of Mexico; in the Atlantic Ocean off Brazil.DescriptionThe maximum recorded shell length is 55 mm.HabitatMinimum recorded depth is 0 m. Maximum recorded depth is 93 m.