Navicula pseudomuralis Hust. Navicula pseudomuralis Hust.is basionym for Microcostatus pseudomuralis (Hust.) Lange-Bert. in Iconogr. Diatomol. 6: 291. 199911. 2nd, corrected printing(Basionym:) descripto Hust. 1937, Arch. Hydrobiol. 15, p. 245, fig. 19: 25-27