shell of, [49], [59] f., [60], [61], [63], [65];
habitat of, [59] f.;
literature of, [58] n.;
marine, [60] f.;
streaming of granules in, [17];
collection of, [62];
shell of, [49], [59] f., [60], [61], [63], [65];
habitat of, [59] f.;
literature of, [58] n.;
marine, [60] f.;
streaming of granules in, [17];
collection of, [62];