Amphipleura antarctica (Grunow) Hustedt, 1937 accepted as
Berkeleya antarctica Grunow (new combination reference)
Amphipleura rutilans var. obtusa (Greville) Hustedt, 1937 accepted as
Monema obtusum Greville, 1828 (new combination reference)
Diploneis bomboides var. media (Grunow) Hustedt, 1937 accepted as
Navicula bomboides var. media Grunow in Cleve & Grunow, 1880 (new combination reference)
Diploneis bombus var. bombiformis (Cleve) Hustedt, 1937 accepted as
Diploneis bombiformis Cleve, 1894 (new combination reference)
Diploneis bombus var. kuetzingi (Grunow) Hustedt, 1937 accepted as
Navicula kuetzingii Grunow, 1860 (new combination reference)
Diploneis budayana (Pantocsek) Jurilj, 1954 accepted as
Navicula budayana Pantocsek, 1892 (new combination reference)
Diploneis confecta (A.Schmidt) F.W.Mills, 1934 accepted as
Navicula confecta A.Schmidt, 1875 (new combination reference)
Diploneis crabro f. dirhombus (Schmidt in Schmidt et al.) Hustedt, 1937 accepted as
Navicula dirrhombus Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis crabro f. suspecta (Schmidt in Schmidt et al.) Hustedt, 1937 accepted as
Navicula suspecta var. suspecta Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis crabro var. excavata Hustedt, 1937 (original description)
Diploneis diplosticta (Grunow) Hustedt, 1937 accepted as
Navicula diplosticta Grunow in Schmidt et al., 1875 (new combination reference)
Diploneis finica var. clevei (Fontell) Hustedt, 1937 accepted as
Diploneis clevei Fontell, 1917 (new combination reference)
Diploneis fusca f. excisa (Schmidt) Hustedt, 1937 accepted as
Navicula fusca var. excisa Schmidt, 1874 (new combination reference)
Diploneis fusca var. aestiva (Donkin) Hustedt, 1937 accepted as
Navicula aestiva var. aestiva Donkin, 1858 (new combination reference)
Diploneis fusca var. amphigomphus Hustedt, 1937 (original description)
Diploneis fusca var. hyperborea (Grunow) Hustedt, 1937 accepted as
Navicula hyperborea Grunow, 1860 (new combination reference)
Diploneis fusca var. pervasta (Pantocsek) Hustedt, 1937 accepted as
Navicula pervasta Pantocsek, 1892 (new combination reference)
Diploneis gemmata var. basilica (Brun) Hustedt, 1937 accepted as
Navicula basilica Brun, 1891 (new combination reference)
Diploneis gorjanovicii (Pantocsek) Hustedt, 1937 accepted as
Navicula gorjanovicii var. gorjanovicii Pantocsek, 1886 (new combination reference)
Diploneis incurvata f. stricta Hustedt, 1937 (original description)
Diploneis interrupta var. heeri (Pantocsek) Hustedt, 1937 accepted as
Navicula heerii Pantocsek, 1889 (new combination reference)
Diploneis lacrimans (Schmidt in Schmidt et al.) Hustedt, 1937 accepted as
Navicula lacrimans var. lacrimans Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis lacrimans var. coarctata (A. Schmidt) Hustedt, 1937 accepted as
Navicula coarctata Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis novaeseelandiae (Schmidt in Schmidt et al.) Hustedt, 1937 accepted as
Navicula interrupta var. novaeseelandiae Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis obliqua (Brun) Hustedt, 1937 accepted as
Navicula didyma var. obliqua Brun, 1895 (new combination reference)
Diploneis oestrupii Hustedt, 1937 (original description)
Diploneis papula var. constricta Hustedt, 1937 (original description)
Diploneis peterseni Hustedt, 1937 accepted as
Diploneis petersenii Hustedt, 1937 (original description)
Diploneis placida (Schmidt in Schmidt et al.) Hustedt, 1937 accepted as
Navicula placida var. placida Schmidt in Schmidt et al., 1892 (new combination reference)
Diploneis pseudobombiformis Hustedt, 1937 (original description)
Diploneis sejuncta f. constricta Hustedt, 1937 (original description)
Diploneis serratula (Grunow) Hustedt, 1937 accepted as
Navicula serratula Grunow in Schmidt et al., 1875 (new combination reference)
Diploneis smithii f. cuneata (Cleve-Euler) Hustedt, 1937 accepted as
Diploneis major var. cuneata Cleve-Euler, 1915 (new combination reference)
Diploneis smithii f. rhombica Mereschkowsky, 1902 accepted as
Diploneis smithii var. rhombica Mereschkowsky, 1902 (new combination reference)
Diploneis smithii var. pumila (Grunow) Hustedt, 1937 accepted as
Navicula ovalis var. pumila Grunow, 1882 (new combination reference)
Diploneis splendida var. andesitica (Pantocsek) Hustedt, 1937 accepted as
Navicula andesitica Pantocsek, 1889 (new combination reference)
Diploneis stroemi Hustedt, 1937 (original description)
Diploneis subadvena Hustedt, 1937 (original description)
Diploneis suborbicularis var. constricta Hustedt, 1937 (original description)
Diploneis suspecta (A. Schmidt) Hendey, 1958 accepted as
Navicula suspecta var. suspecta Schmidt in Schmidt et al., 1875 (new combination reference)
Diploneis taschenbergeri (Schmidt in Schmidt et al.) Hustedt, 1937 (new combination reference)
Diploneis zanzibarica (Grunow) Hustedt, 1937 accepted as
Navicula interrupta var. zanzibarica Grunow in Schmidt et al., 1875 (new combination reference)
Melosira italica f. curvata Hustedt, 1930 (original description)