Achnanthes annulifera A.Cleve, 1953 (original description)
Achnanthes bergianii A.Cleve, 1953 (original description)
Achnanthes bergii A.Cleve, 1953 (original description)
Achnanthes bicapitellata Cleve-Euler, 1953 (original description)
Achnanthes brevipes var. elliptica (Østrup) Cleve-Euler, 1953 accepted as Achnanthes brevipes f. elliptica Østrup, 1897 (new combination reference)
Achnanthes crucifera var. genuina Cleve-Euler, 1953 (original description)
Achnanthes crucifera var. pseudoexigua Cleve-Euler, 1953 (original description)
Achnanthes curta (A.Cleve) A.Berg ex Cleve-Euler, 1953 accepted as Pinnularia curta var. curta A. Cleve, 1900 (new combination reference)
Achnanthes curta f. perminuta Cleve-Euler, 1953 (original description)
Achnanthes delicatula var. genuina Cleve-Euler, 1953 (original description)
Achnanthes delicatula var. subcapitata (Østrup) Cleve-Euler, 1953 accepted as Achnanthes septentrionalis var. subcapitata Oestrup, 1910 (new combination reference)
Achnanthes densestriata var. densestriata Cleve-Euler, 1953 (original description)
Achnanthes densestriata var. genuina Cleve-Euler, 1953 (original description)
Achnanthes densestriata var. subalpina Cleve-Euler, 1953 (original description)
Achnanthes depressa var. genuina Cleve-Euler, 1953 (original description)
Achnanthes dispar var. typica Cleve-Euler, 1953 (original description)
Achnanthes divergens A.Cleve, 1953 (original description)
Achnanthes diversa Cleve-Euler, 1953 (original description)
Achnanthes elliptica var. exigua Cleve-Euler, 1953 (original description)
Achnanthes elliptica var. genuina Cleve-Euler, 1953 (original description)
Achnanthes exigua var. typica Cleve-Euler, 1953 (original description)
Achnanthes flexella var. genuina Cleve-Euler, 1953 (original description)
Achnanthes fluviatilis var. fluviatilis Cleve-Euler, 1953 (original description)
Achnanthes fluviatilis var. perstriata Cleve-Euler, 1953 (original description)
Achnanthes fraudulenta Cleve-Euler, 1953 (original description)
Achnanthes fugiens Cleve-Euler, 1953 (original description)
Achnanthes gibberula f. interrupta (Anisimova & Poretzky) Cleve-Euler, 1953 accepted as Achnanthes gibberula var. interrupta Poretzky & Anissimova, 1933 (new combination reference)
Achnanthes gibberula var. elliptica (Krasske) Cleve-Euler, 1953 accepted as Achnanthes grimmei var. elliptica Krasske, 1927 (new combination reference)
Achnanthes gibberula var. genuina Cleve-Euler, 1953 (original description)
Achnanthes groenlandica var. clevei Cleve-Euler, 1953 (original description)
Achnanthes groenlandica var. oestrupii Cleve-Euler, 1953 (original description)
Achnanthes hallandica A.Cleve, 1953 (original description)
Achnanthes hauckiana Grunow, 1880 (original description)
Achnanthes hauckiana var. genuina Cleve-Euler, 1953 (original description)
Achnanthes hauckiana var. subrhombica Cleve-Euler, 1953 (original description)
Achnanthes haynaldii Schaarschmidt, 1881 (original description)
Achnanthes haynaldii var. borussica Cleve-Euler, 1953 (original description)
Achnanthes haynaldii var. linkei (Hustedt) Cleve-Euler, 1953 accepted as Achnanthes linkei var. linkei Hustedt, 1939 (new combination reference)
Achnanthes heideni var. aapaensis Cleve-Euler, 1953 (original description)
Achnanthes heideni var. gothica Cleve-Euler, 1953 (original description)
Achnanthes heideni var. typica Cleve-Euler, 1953 (original description)
Achnanthes hettensis Cleve-Euler, 1953 (original description)
Achnanthes indicta Cleve-Euler, 1953 (original description)
Achnanthes karelica Cleve-Euler, 1953 (original description)
Achnanthes lanceolata f. diminuta Cleve-Euler, 1932 (new combination reference)
Achnanthes lanceolata f. diminutae Cleve-Euler, 1953 (original description)
Achnanthes lanceolata f. faeroensis (Østrup) Cleve-Euler, 1953 accepted as Achnanthes lanceolata var. faeroensis Østrup, 1901 (new combination reference)
Achnanthes lanceolata var. elegans Cleve-Euler, 1953 (original description)
Achnanthes lanceolata var. elliptica Schulz ex Cleve-Euler, 1953 (original description)
Achnanthes lanceolata var. laevistiata Cleve-Euler, 1953 (original description)
Achnanthes lancettula Cleve-Euler, 1953 (original description)
Achnanthes marginulata var. rotundata Cleve-Euler, 1953 (original description)
Achnanthes marginulata var. sublaevis (Hustedt) Cleve-Euler, 1953 accepted as Achnanthes sublaevis Hustedt, 1937 (new combination reference)
Achnanthes marginulata var. typica Cleve-Euler, 1953 (original description)
Achnanthes maxima var. genuina Cleve-Euler, 1953 (original description)
Achnanthes maxima var. intermedia (Østrup) Cleve-Euler, 1953 accepted as Cocconeis flexella var. intermedia Østrup, 1910 (new combination reference)
Achnanthes maxima var. lanceolata (Østrup) Cleve-Euler, 1953 accepted as Cocconeis maxima var. lanceolata Østrup, 1910 (new combination reference)
Achnanthes maxima var. maxima (A. Cleve) Cleve-Euler, 1953 accepted as Achnanthidium maximum Cleve-Euler, 1895 (new combination reference)
Achnanthes microcephala f. minuta Cleve-Euler, 1953 (original description)
Achnanthes microcephala var. gracillima (Meister) Cleve-Euler, 1953 accepted as Microneis gracillima Meister, 1912 (new combination reference)
Achnanthes microcephala var. typica Cleve-Euler, 1953 (original description)
Achnanthes minuta var. genuina Cleve-Euler, 1953 (original description)
Achnanthes minuta var. hyalina Cleve-Euler, 1953 (original description)
Achnanthes minuta var. minuta (Cleve) Cleve-Euler, 1953 accepted as Achnanthidium minutum Cleve, 1891 (new combination reference)
Achnanthes minutissima var. exilissima Cleve-Euler, 1953 (original description)
Achnanthes minutissima var. genuina Cleve-Euler, 1953 (original description)
Achnanthes minutissima var. pyrenaica (Hustedt) Cleve-Euler, 1953 accepted as Achnanthes pyrenaica var. pyrenaica Hustedt, 1939 (new combination reference)
Achnanthes oerensis Cleve-Euler, 1953 (original description)
Achnanthes oestrupii var. minor Cleve-Euler, 1953 (original description)
Achnanthes oestrupii var. ostrupii (A. Cleve) A. Cleve-Euler, 1953 accepted as Achnanthes lanceolata var. oestrupii A.Cleve, 1922 accepted as Skabitschewskia oestrupii (Cleve-Euler) Kulikovskiy & Lange-Bertalot, 2015 (new combination reference)
Achnanthes oestrupii var. rostrata (Hustedt) Cleve-Euler, 1953 accepted as Achnanthes lanceolata var. rostrata Hustedt, 1911 accepted as Planothidium rostratoholarcticum Lange-Bertalot & Bąk in Bąk & Lange-Bertalot, 2014 (new combination reference)
Achnanthes oestrupii var. typica Cleve-Euler, 1953 (original description)
Achnanthes papillosa Cleve-Euler, 1953 (original description)
Achnanthes petersenii var. genuina Cleve-Euler, 1953 (original description)
Achnanthes petersenii var. subhyalina Cleve-Euler, 1953 (original description)
Achnanthes pseudincognita Cleve-Euler, 1953 (original description)
Achnanthes pseudotanensis A.Cleve-Euler, 1953 (original description)
Achnanthes restricta Cleve-Euler, 1953 (original description)
Achnanthes septata var. incurvata (Østrup) Cleve-Euler, 1953 accepted as Achnanthes subsessilis var. incurvata Østrup, 1895 (new combination reference)
Achnanthes septata var. linearis Cleve-Euler, 1953 (original description)
Achnanthes siberica Cleve-Euler, 1953 (original description)
Achnanthes soodensis (Krasske) Cleve-Euler, 1953 accepted as Navicula soodensis var. soodensis Krasske, 1927 (new combination reference)
Achnanthes subinflata (Østrup) Cleve-Euler, 1953 accepted as Achnanthes lanceolata var. subinflata Østrup, 1918 (new combination reference)
Amphora acuta var. genuina Cleve-Euler, 1953 (original description)
Amphora arcus var. typica Cleve-Euler, 1953 (original description)
Amphora arenaria var. typica Cleve, 1895 (new combination reference)
Amphora egregia var. rigida Cleve-Euler, 1953 (original description)
Amphora grevilleana var. typica Cleve-Euler, 1953 (original description)
Amphora laevis var. typica Cleve-Euler, 1953 (original description)
Amphora libyca var. baltica (Brander) Cleve-Euler, 1953 accepted as Amphora baltica Brander, 1933 (new combination reference)
Amphora libyca var. globosa (Schumann) Cleve-Euler, 1953 accepted as Amphora globosa Schumann, 1867 (new combination reference)
Amphora libyca var. typica Cleve-Euler, 1953 (original description)
Amphora lineolata var. plicata (Gregory) Cleve-Euler, 1953 accepted as Amphora plicata Gregory, 1857 (new combination reference)
Amphora marina var. genuina Cleve-Euler, 1953 (original description)
Amphora mexicana var. schmidtii Cleve-Euler, 1953 (original description)
Amphora obtusa var. typica (Cleve) Cleve-Euler, 1953 accepted as Amphora obtusa f. typica Cleve, 1895 (new combination reference)
Amphora ostrearia var. densepunctata Cleve-Euler, 1953 (original description)
Amphora ovalis var. typica (Cleve) F.Meister accepted as Amphora ovalis f. typica Cleve, 1895 (new combination reference)
Amphora pediculus var. vetteri Cleve-Euler, 1953 (original description)
Amphora proteus var. gregorii Cleve-Euler, 1953 (original description)