A name for the saucer scallop, a round scallop with 25 radiating ribs and smooth, polished shells. Two types are taken; the northern saucer around 8 cm (3") and Ballot's saucer (up to 14 cm (5½") and is fished off Queensland and Western Australia. The flesh is paler in colour, sweeter and firmer than other scallop varietes, making it very desirable.