Kützing [Kuetzing], F.T. (1844), Die Kieselschaligen Bacillarien oder Diatomeen: 68, pl 15 fig VII [tax. nov.]

• Type locality: Germany

Lange-Bertalot, H. (1980), Zur systematischen Berwertung der bandförmigen Kolonien bei Navicula und Fragilaria. Kriterien für die Vereinigung von Synedra (subgen. Synedra) Ehrenberg mit Fragilaria Lyngbye. Nova Hedwigia 33: 745 [basionym]

basionym of: Fragilaria ulna var. acus (Kütz.) Lange-Bert. legitimate

Day, S.A., Wickham, R.P., Entwisle, T.J. & Tyler, P.A. (1995), Bibliographic checklist of non-marine algae in Australia: - [secondary reference]

Aboal et al. (2003), Floristic list of non-marine diatoms (Bacillariophyceae) of Iberian Peninsula, Balearic Islands and Canary Islands. Diatom Monographs 4: 105 [basionym]

basionym of: Ulnaria acus (Kütz.) Aboal legitimate

Entwisle, T.J. & Nairn, L. (2011), Census of Freshwater Algae in Australia. Edn. Version 1.0: - [nomenclatural synonym]

nomenclatural synonym of: Fragilaria ulna var. acus (Kütz.) Lange-Bert. legitimate

McCarthy, P. (2012), Census of Australian Marine Diatoms: - [nomenclatural synonym]

nomenclatural synonym of: Ulnaria acus (Kütz.) Aboal legitimate

Guiry, M.D. & Guiry, G M. (2022), -. Algaebase web site: www.algaebase.org: - [nomenclatural synonym]

nomenclatural synonym of: Ulnaria acus (Kütz.) Aboal legitimate

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