Achnanthes austriaca var. dracomontana Cholnoky, 1957 (original description)
Achnanthes rautenbachiae Cholnoky, 1957 (original description)
Caloneis lagerstedtii (Lagerstedt) Cholnoky, 1957 (new combination reference)
Cymbella anassae Cholnoky, 1957 accepted as
Encyonopsis anassae (Cholnoky) Krammer, 1997 (original description)
Cymbella rautenbachiae Cholnoky, 1957 (original description)
Cymbella subalpina var. natalensis Cholnoky, 1957 (original description)
Cymbella subventricosa Cholnoky, 1957 (original description)
Diploneis tugelae Cholnoky, 1957 (original description)
Eunotia vandermerwei Cholnoky, 1957 (original description)
Navicula anassae Cholnoky, 1957 (original description)
Navicula artemidis Cholnoky, 1957 (original description)
Navicula bryophila var. trigibba Cholnoky, 1957 (original description)
Navicula bushmanorum Cholnoky, 1957 (original description)
Navicula cavernae Cholnoky, 1957 (original description)
Navicula contenta f. gigantea Cholnoky, 1957 (original description)
Navicula natalensis Cholnoky, 1957 (original description)
Navicula pupula f. minutula Cholnoky, 1957 (original description)
Navicula rautenbachiae Cholnoky, 1957 (original description)
Navicula tennelloides var. capitata Cholnoky, 1957 (original description)
Navicula terrestris var. vandermerwei (Cholnoky) Cholnoky, 1957 accepted as
Diploneis vandermerwei B.J.Cholnoky, 1955 (new combination reference)
Navicula vandermerwei Cholnoky, 1957 (original description)
Navicula vaneldenii Cholnoky, 1957 (original description)
Navicula zulu Cholnoky, 1957 (original description)
Nitzschia acicularis var. africana Cholnoky, 1957 (original description)
Nitzschia anassae Cholnoky, 1957 (original description)
Nitzschia pretoriensis Cholnoky, 1957 (original description)
Nitzschia rautenbachiae Cholnoky, 1957 (original description)
Nitzschia vandermerwei Cholnoky, 1957 (original description)
Pinnularia anassae Cholnoky, 1957 (original description)
Pinnularia congolensis (Zanon) Cholnoky, 1957 accepted as
Pinnularia borealis var. congolensis Zanon, 1938 (new combination reference)
Pinnularia episcopalis var. africana Cholnoky, 1957 (original description)
Pinnularia tropica var. subtropica Cholnoky, 1957 (original description)