Navicula slesvicensis

Grunow in Van Heurck 1880      Category: Symmetrical biraphid
SYNONYM(S): Navicula viridula var. slesvicensis (Grunow in Van Heurck) Grunow in Cleve and Moller 

Navicula seibigiana


Navicula sovereignii

LM scalebar = 10 µm = 40 pixels.


Contributor: Marina Potapova | Loren Bahls - October 2011
Length Range: 36-69 µm
Width Range: 10-12.5 µm
Striae in 10 µm: 8-9


Valves are linear-elliptic to linear-lanceolate with apices that are wedge-shaped in smaller specimens and more produced, subrostrate in larger specimens. The axial area is narrow and straight. The central area is transversely elliptic or irregularly rhomboid. The raphe is straight, moderately lateral, with dilated external proximal raphe ends. The central nodule is symmetric. Striae are radiate in the valve center, more widely spaced about the central area and convergent at the apices. The areolae are visible under LM and number approximately 25 in 10 μm.

Original Description

Author: Grunow in Van Heurck 1880
Length Range: µm
Striae in 10 µm:

Original Description

Original Images

Cite This Page:
Potapova, M., and Bahls, L. (2011). Navicula slesvicensis . In Diatoms of the United States. Retrieved August 27, 2016, from

Species: Navicula slesvicensis

Contributor: Marina Potapova | Loren Bahls

Reviewer: Rex Lowe


Lange-Bertalot, H. (2001). Navicula sensu stricto, 10 genera separated from Navicula sensu lato, Frustulia. Diatoms of Europe 2: 1-526.

Van Heurck, H. (1880). Synopsis des Diatomées de Belgique. Atlas. Ducaju & Cie., Anvers.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Navicula slesvicensis CAS

NCBI Genbank Taxonomy

Navicula slesvicensis NCBI

North American Diatom Ecological Database (NADED)

NADED ID: 46732

Autecology Discussion

Navicula slesvicensis has been reported from creeks and rivers in Montana, North Dakota and Wyoming, where it prefers warm, muddy waters rich in sodium sulfate and organic nitrogen. Common diatom associates of N. slesvicensis in these streams include Navicula peregrina, Entomoneis paludosa, Navicula salinarum, Ctenophora pulchella, Entomoneis alata, Biremis circumtexta, Craticula halophila, Tabularia fasciculata, Pleurosigma delicatulum, Fragilaria famelica, Navicula goersii, and Fallacia tenera. In Europe, Navicula slesvicensis is found in electrolyte-rich freshwaters and in coastal waters, estuaries, and inland salt springs (Lange-Bertalot 2001).