Higher Classification: > Kingdom Chromista > Subkingdom Harosa > Infrakingdom Heterokonta > Phylum Ochrophyta > Subphylum Khakista > Class Bacillariophyceae > Subclass Bacillariophycidae > Superorder Bacillariophycanae > Order Naviculales > Family Naviculaceae > Genus Navicula

Navicula directa (W.Smith) Ralfs, 1861

Rank: Species
Taxon Status: accepted

Relationships towards this taxon

Genus group names

NaviculaBory de Saint-Vincent, 1822accepted genus name

Species group names

Pinnularia directa W.Smith, 1853 basionym
Pinnularia directa W.Smith, 1853 synonym


basis of record

Louis, A.; Petes, J. (1979). Fluctuations écologiques et algologiques dans les estuaires belges (Oostende, Blankenberge et Nieuwpoort): 1. Données de base [Ecological and algological fluctuations in the Belgian estuaries (Oostende, Blankenberge and Nieuwpoort): 1. Basic data]. Studia Algologica Lovaniensia, 7. Story-Scientia: Louvain, Belgium. XXXVI, 355 pp.

additional source

Tomas, C.R. (Ed.) (1997). Identifying marine phytoplankton. Academic Press: San Diego, CA [etc.] (USA). ISBN 0-12-693018-X. XV, 858 pp.

additional source

Hartley, B. (1986). A check-list of the freshwater, brackish and marine diatoms of the British Isles and adjoining coastal waters. J. Mar. Biol. Ass. U.K. 66: 531-610.

additional source

Krayesky, D. M., E. Meave del Castillo, E. Zamudio, J. N. Norris, and S. Fredericq. 2009. Diatoms (Bacillariophyta) of the Gulf of Mexico, Pp. 155–186 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M

additional source


additional source

Hällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). Baltic Sea Environment Proceedings No. 95: 210 pp.

additional source

Dyntaxa (2013) Swedish Taxonomic Database. Accessed at www.dyntaxa.se [15-01-2013].




Published in AlgaeBase

External Links

Biodiversity Heritage Library (45 publications)


Guiry, Michael D. (2014). Navicula directa (W.Smith) Ralfs, 1861. In: Guiry, M.D. & Guiry, G.M. (2014). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). In: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvantidis, C.; Appeltans, W. (2014) European Register of Marine Species, accessed through PESI at http://www.eu-nomen.eu/portal/taxon.php?GUID=urn:lsid:marinespecies.org:taxname:149467




 Present  Absent  Doubtful  Native  Introduced  Naturalised  Invasive  Managed  No data




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Last modified

2010-12-13 by Michael D. Guiry

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