• Diploneis bombus (Ehrenberg) Ehrenberg, 1853 (uncertain > unassessed)
• Diploneis crabro (Ehrenberg) Ehrenberg, 1854 accepted as Pinnularia crabro Ehrenberg, 1844
• Diploneis crabro var. pandura (Brébisson) Cleve, 1894 accepted as Navicula pandura var. pandura Brébisson, 1854
• Diploneis crabro var. suspecta (Schmidt in Schmidt et al.) Cleve, 1894 accepted as Navicula suspecta var. suspecta Schmidt in Schmidt et al., 1875
• Diploneis fusca (W.Gregory) Cleve, 1894 accepted as Navicula smithii var. fusca Gregory, 1857
• Diploneis fusca var. pelagi (Schmidt in Schmidt et al.) Cleve, 1894 accepted as Navicula pelagi Schmidt in Schmidt et al., 1875
• Diploneis interrupta (Kützing) Cleve, 1894 accepted as Navicula interrupta var. interrupta Kützing, 1844
• Diploneis schmidtii Cleve, 1894 (uncertain > unassessed)
• Diploneis smithii (Brébisson) Cleve, 1894 accepted as Navicula smithii f. smithii Brébisson in W. Smith, 1856
• Diploneis splendida Cleve, 1894 accepted as Navicula splendida var. splendida Gregory, 1856