Taxon Account

Navicula rhynchotella Lange-Bertalot ; 1993; 135

Key references

Lange-Bertalot H. 1993. 85 neue Taxa und über 100 weitere neu definierte Taxa ergänzend zur Süßwasserflora von Mitteleuropa Vol.2/1-4. Bibliotheca Diatomologica 27, J. Cramer, Berlin, Stuttgart. 454 pp

Morphology

Shape
Valves broadly lanceolate to elliptical, with narrowly rostrate to slightly sub-capitate apices.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Radiate through most of valve, parallel to slightly convergent at apices; striae coarsely cross-lineate with areolae visible.

Axial area
Narrow linear.

Central area
Transapically expanded, elliptic or slightly asymmetrical, with three or four shortened striae at centre, moderately large ca. 1/2 of valve width.

Raphe
Straight, with slightly expanded, dot-like proximal endings, ending within the central area; terminal fissures hooked at the apices.

Other features
Central nodule only slightly wider than the raphe sternum.

Literature

References are given in chronological order.

Reference
Citation
Lange-Bertalot H. 1993. 85 neue Taxa und über 100 weitere neu definierte Taxa ergänzend zur Süßwasserflora von Mitteleuropa Vol.2/1-4. Bibliotheca Diatomologica 27, J. Cramer, Berlin, Stuttgart. 454 pp Morphology; Taxonomy; Description; Type Illustration
Hofmann G., Werum M., Lange-Bertalot H. 2011. Diatomeen im Süßwasser-Benthos von Mitteleuropa. A.R.G. Gantner, Ruggell. 908 pp Morphology; Ecology; Illustrations
This page should be cited as:

Cox E. J., Jones V. Navicula rhynchotella Lange-Bertalot ; 1993; 135. In: Jüttner I., Bennion H., Carter C., Cox E.J., Ector L., Flower R., Jones V., Kelly M.G., Mann D.G., Sayer C., Turner J. A., Williams D.M.. Freshwater Diatom Flora of Britain and Ireland. Amgueddfa Cymru - National Museum Wales. Available online at https://naturalhistory.museumwales.ac.uk/diatoms/browsespecies.php?-recid=4240. [Accessed:  ].

Image Gallery

Record last modified: 27/12/2020