Gabrielona pisinnaGabrielona pisinna, common name the tiny pheasant, is a species of small sea snail with calcareous opercula, a marine gastropod mollusk in the family Phasianellidae, the pheasant snails.DescriptionThe size of the shell varies between 0.34 mm and 1.1 mm.DistributionThis species occurs in the Indian Ocean off Mauritius and in the Pacific Ocean off New Caledonia