Cleve, P.T. & Grunow, A. (1880), Beitrage zur Kenntniss der arctischen Diatomeen. Kongliga Svenska Vetenskaps-Akademiens Handligar bd. 17, nr 2: 94, pl. V [5]: fig. 101 [tax. nov.]

Burbury, F.E. (1902), Tasmanian Diatomaceae. Papers and Proceedings of the Royal Society of Tasmania: 7 [secondary reference]

orthographic variant: Nitzschia rigida F.E.Burbury orth. var.

• Comment: It appears that this record may have been a typographical error. It appears the Burbury was referring to N. frigida not N. rigida, the latter not ever having been described by Grunow.

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

• Comment: Day et al. refer to Burbury 1902 for this record.

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

• Comment: Vulnerable (ANZECC)
• APC Comment: T.J.Entwisle and L.Nairn (2011) use this taxon concept.
• Distribution: Tasmania

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