Traits name details
original description
(of Navicula protracta Grunow, 1880) Cleve, P.T. ; Grunow, A. (1880). Beiträge zur Kenntniss der Arctischen Diatomeen. <em>Kongliga Svenska-Vetenskaps Akademiens Handlingar.</em> 17(2): 121 pp., 7 pls. page(s): p. 35; pl. 2, fig. 38 [details] 
basis of record
Fourtanier, E. & Kociolek, J. P. (compilers). (2011). Catalogue of Diatom Names. California Academy of Sciences, On-line Version. Updated 2011-09-19., available online at http://researcharchive.calacademy.org/research/diatoms/names/index.asp [details]
new combination reference
Witkowski, A., Lange-Bertalot, H. & Metzeltin, D. (2000). Diatom Flora of Marine Coasts I. <em>In: Lange-Bertalot, H. (ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 7. Diversity-Taxonomy-Identification. Koeltz Scientific Books, Königstein, Germany,.</em> 7: 925 pp., 219 pls. page(s): p. 324 [details] Available for editors 
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