Achnanthepyla minuta ‘(Grunow) M. Peragallo' VanLandingham, 1967 accepted as Achnanthepyla minutula (Grunow) Perag., 1921 (taxonomy source)
Achnanthes astridii VanLand., 1967 (original description)
Achnanthes biconfusa VanLandingham, 1967 accepted as Nupela biconfusa (VanLandingham) C.E.Wetzel & Ector, 2018 (original description)
Achnanthes birugula 'Hohn' VanLandingham, 1967 (taxonomy source)
Achnanthes brevipes var. elliptica (Østrup) Cleve-Euler ex VanLandingham, 1967 accepted as Achnanthes brevipes f. elliptica Østrup, 1897 (new combination reference)
Achnanthes conchinchinensis ‘M. Peragallo' VanLandingham, 1967 (taxonomy source)
Achnanthes crenulata var. confusa VanLandingham, 1967 (original description)
Achnanthes elata var. curvata ‘Gandhi' VanLandingham, 1967 (taxonomy source)
Achnanthes exigua var. constricta (Torka) Hustedt, 1930 accepted as Cocconeis exigua var. constricta Torka, 1909 (taxonomy source)
Achnanthes expecta VanLandingham, 1967 (original description)
Achnanthes gibberula f. angustior ‘Grunow ex Van Heurck' VanLandingham, 1967 (taxonomy source)
Achnanthes groenlandica var. oestrupii Cleve-Euler ex VanLandingham, 1967 (original description)
Achnanthes inflata var. signata ‘O. Müller' VanLandingham, 1967 (taxonomy source)
Achnanthes juriljii VanLandingham, 1967 (original description)
Achnanthes lanceolata f. typica ‘Meister' VanLandingham, 1967 (taxonomy source)
Achnanthes lanceolata f. ventricosa (Hustedt) Vanlandingham, 1967 accepted as Achnanthes lanceolata var. ventricosa Hustedt, 1914 (new combination reference)
Achnanthes lanceolata var. intermedia (A.Cleve) accepted as Achnanthes haynaldii var. intermedia Cleve-Euler in Florin, 1944 (new combination reference)
Achnanthes minuta var. alpestris ‘Brun' VanLandingham, 1967 (taxonomy source)
Achnanthes norvegica Hustedt accepted as Achnanthes montana var. norvegica Hustedt, 1931 (new combination reference)
Achnanthes perturba VanLandingham, 1967 (original description)
Achnanthes repestoides ‘Hohn' VanLandingham, 1967 (taxonomy source)
Achnanthes triconfusa Van Landingham, 1967 (original description)
Achnanthes trijuga ‘Turpin' according to VanLandingham, 1828 (taxonomy source)
Achnanthidium agglutinans ‘Grunow in Cleve & Grunow' VanLandingham, 1880 (taxonomy source)
Achnanthidium brevipes var. parvulum (Kützing) Mereschovsky, 1901 accepted as Achnanthes parvula Kützing, 1844 (taxonomy source)
Achnanthidium kuwaitensis ‘Hendey' VanLandingham, 1967 (taxonomy source)
Achnanthidium lanceolatum var. haynaldii (Schaarschmidt) Meister, 1912 accepted as Planothidium haynaldii (Schaarschmidt) Lange-Bertalot, 1999 (taxonomy source)
Actinocyclus cholnokyi VanLandingham, 1967 (original description)
Actinocyclus yarrensis according to VanLandingham (original description)
Actinoptychus divisus ‘Kisselev' VanLandingham, 1967 (taxonomy source)
Actinoptychus meakinii VanLandingham, 1967 (original description)
Actinoptychus triradiatus ‘(Roper) Ralfs in Pritchard' according to VanLandingham, 1967 accepted as Actinocyclus triradiatus Roper, 1858 (taxonomy source)
Actinoptychus undulatus var. confusus VanLandingham, 1967 (original description)
Amphiprora triconfusa VanLandingham, 1967 (original description)
Amphora advena VanLandingham, 1967 (original description)
Amphora balearica ‘Cleve in Cleve & Möller' VanLandingham, 1967 (taxonomy source)
Amphora libyca var. minor ‘Gutwinski' VanLandingham, 1967 (taxonomy source)
Amphora meisteri VanLandingham, 1967 (original description)
Amphora obtusa var. skvortzowii VanLandingham, 1967 (original description)
Amphora robusta var. tenuissima (Cleve-Euler) VanLandingham, 1967 accepted as Amphora proteus var. tenuissima Cleve-Euler, 1915 (new combination reference)
Amphora spitzbergenensis VanLandingham, 1967 (original description)
Amphora terroris var. rara (Frenguelli) VanLandingham, 1967 accepted as Amphora cymbifera var. rara Frenguelli, 1945 † (new combination reference)
Amphora undata ‘Greville' according to VanLandingham, 1967 (taxonomy source)
Anomoeoneis sculpta f. undulata ‘Frenguelli' VanLandingham, 1967 (taxonomy source)
Anomoeoneis sculpta var. apiculata ‘Frenguelli' VanLandingham, 1967 (taxonomy source)
Anomoeoneis sculpta var. minima ‘Frenguelli' VanLandingham, 1967 (taxonomy source)
Anomoeoneis serians f. brachysira ‘(Brébisson in Rabenhorst) Cleve in Cleve & Möller' according to VanLandingham, 1967 accepted as Navicula brachysira Brébisson ex Rabenhorst, 1853 (taxonomy source)
Asterionella madagascariensis f. minor ‘Manguin in Bourrelly & Manguin' VanLandingham, 1967 (taxonomy source)
Aulacodiscus gigas ‘Gregory' according to VanLandingham, 1865 (taxonomy source)
Auliscus alienus var. alienus VanLandingham, 1967 (original description)
Auliscus alienus var. tetrameri (Forti ex Laporte & Lefébure) VanLandingham, 1967 accepted as Pseudauliscus schmidtii var. tetrameri Forti ex Laporte & Lefébure, 1930 (new combination reference)
Auliscus debyi (Leuduger-Fortmorel) VanLandingham, 1967 accepted as Pseudauliscus debyi Leuduger-Fortmorel, 1879 (new combination reference)
Auliscus diffusus (Rattray) VanLandingham, 1967 accepted as Pseudauliscus diffusus Rattray, 1888 (new combination reference)
Auliscus hirsutus (Rattray) VanLandingham, 1967 accepted as Pseudauliscus hirsutus Rattray, 1888 (new combination reference)
Auliscus johnsonianus var. eludens (Rattray) VanLandingham, 1967 accepted as Pseudauliscus johnsonianus var. eludens Rattray, 1888 (new combination reference)
Auliscus letoniensis (Janisch) VanLandingham, 1967 accepted as Pseudauliscus letoniensis Janisch in Schmidt et al., 1881 (new combination reference)
Auliscus rotatus (Rattray) VanLandingham, 1967 accepted as Pseudauliscus rotatus Rattray, 1888 (new combination reference)
Auliscus subreticulatus var. minor ‘Tempère & Peragallo' according to VanLandingham, 1967 (taxonomy source)
Auliscus temperei (Pantocsek) VanLandingham, 1967 accepted as Pseudocerataulus temperei Pantocsek, 1889 (new combination reference)