Rhizophysaliidae, [302], [308]Rhizopoda, [50], [51] f.;formation of chromidia, [29] f.;relations, [48] f.;shell, [49], [51] f.;Filosa, [50], [52] f.;Lobosa, [50], [51] f.;test-bearing, [53] f., [55];literature, [58]Rhizostoma, [325];