Achnanthes hoermannii Gutwinski, 1899 (original description)
Achnanthes hormanii Gutwinski, 1899 (original description)
Cystopleura turgida var. gracilis (Grunow) Gutwinski, 1893 accepted as
Epithemia turgida var. gracilis Grunow, 1862 (new combination reference)
Cystopleura turgida var. granulata (Ehrenberg) De Toni, 1892 accepted as
Eunotia granulata Ehrenberg, 1836 (new combination reference)
Gomphonema brandisii Gutwinski, 1899 (original description)
Navicula hungarica var. humilis (Donkin) Gutwinski, 1899 accepted as
Navicula humilis Donkin, 1872 (new combination reference)
Suriraya ovalis var. angusta (Kützing) Gutwinski, 1899 accepted as
Surirella angusta f. angusta Kützing, 1844 (new combination reference)
Suriraya ovalis var. minuta (Brébisson) Gutwinski, 1899 accepted as
Surirella minuta f. minuta Brébisson, 1838 (new combination reference)
Suriraya ovalis var. ovata (Kützing) Gutwinski, 1899 accepted as
Surirella ovata f. ovata Kützing, 1844 (new combination reference)
Suriraya ovalis var. pinnata (W.Smith) Gutwinski, 1899 accepted as
Surirella pinnata var. pinnata W. Smith, 1853 (new combination reference)
Suriraya ovalis var. salina (W. Smith) Gutwinski, 1899 accepted as
Surirella salina var. salina W. Smith, 1851 (new combination reference)