Amphora veneta var. somalica Frenguelli, 1929 accepted as
Halamphora veneta var. somalica (Frenguelli) Levkov, 2009 (original description)
Coscinodiscus minimus (H. Peragallo in Tempère & Peragallo) G. Frenguelli, 1929 accepted as
Coscinodiscus excentricus f. minima H. Peragallo in Tempère & Peragallo, 1908 (new combination reference)
Denticula elegans Kützing, 1844 accepted as
Diploneis baicalensis Skvortzov & Meyer, 1928 (new combination reference)
Mastogloia stefaninii Frenguelli, 1929 (original description)
Navicula crucialis var. lanceolata (Otto Müller) Frenguelli, 1929 (new combination reference)
Navicula crucialis var. linearis (Otto Müller) Frenguelli, 1929 (new combination reference)
Nitzschia linearis var. stefaninii Frenguelli, 1929 (original description)
Nitzschia stefaninii Frenguelli, 1929 (original description)
Orthoneis binotata f. minor Frenguelli, 1929 (original description)
Podocystis spathulata (Shadbolt) Frenguelli, 1929 accepted as
Euphyllodium spathulatum var. spathulatum Shadbolt, 1854 (new combination reference)
Trigonium formosum (Brightwell) Cleve, 1867 accepted as
Triceratium formosum f. formosum Brightwell, 1856 (new combination reference)
Trigonium formosum var. formosum Frenguelli, 1929 (original description)
Trigonium formosum var. pentagona Frenguelli, 1929 (original description)
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Amphora veneta var. somalica Frenguelli, 1929
Somalia for
Mastogloia stefaninii Frenguelli, 1929
Somalia for
Nitzschia stefaninii Frenguelli, 1929
Somalia for
Nitzschia stefaninii Frenguelli, 1929
Somalia for
Nitzschia stefaninii Frenguelli, 1929
Somalia for
Orthoneis binotata f. minor Frenguelli, 1929
Somalia for
Orthoneis binotata f. minor Frenguelli, 1929