Halamphora normanii (Rabenhorst) Levkov; 2009; 208
Synonymy
Amphora normanii Rabenhorst 1864
Key references
Levkov Z. 2009. Amphora sensu lato. Lange-Bertalot H. (ed.) Diatoms of Europe: Diatoms of the European Inland Waters and Comparable Habitats. Vol. 5., A.R.G. Gantner Verlag K.G., Ruggell. 916 pp
Morphology
Size
Length 22-42 µm, width 4-6.4 µm, frustule width 11-15 µm (Levkov 2009).
Shape
Valves semi-lanceolate with convex dorsal and slightly convex ventral margin; valve ends protracted, capitate, slightly ventrally bent.
Symmetry
Isopolar, dorsiventral.
Striae
Striae on dorsal side parallel to slightly radiate, 16-20 in 10 µm, areolae on dorsal side discernible; ventrally a row of round to slightly elongate areolae, 25-28 in 10 µm (Levkov 2009).
Axial area
Broad axial area, expressed particularly on ventral side.
Central area
Semi-stauros on dorsal side, bordered near dorsal margin by short striae.
Raphe
Raphe slightly arched with dorsally bent, proximal raphe endings.
Length 22-42 µm, width 4-6.4 µm, frustule width 11-15 µm (Levkov 2009).
Shape
Valves semi-lanceolate with convex dorsal and slightly convex ventral margin; valve ends protracted, capitate, slightly ventrally bent.
Symmetry
Isopolar, dorsiventral.
Striae
Striae on dorsal side parallel to slightly radiate, 16-20 in 10 µm, areolae on dorsal side discernible; ventrally a row of round to slightly elongate areolae, 25-28 in 10 µm (Levkov 2009).
Axial area
Broad axial area, expressed particularly on ventral side.
Central area
Semi-stauros on dorsal side, bordered near dorsal margin by short striae.
Raphe
Raphe slightly arched with dorsally bent, proximal raphe endings.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Rabenhorst L. 1864. Flora europaea algarum aquae dulcis et submarinae. Algas diatomeas complectens. 1(1). Leipzig. 359 pp | Morphology; Description; Taxonomy |
| Carter R., Round F.E. 1993. Studies on freshwater Amphora species. V. A. montana and A. normanii. Diatom Research. 8(1): 1-11. | Morphology; Illustrations; Description |
| Levkov Z. 2009. Amphora sensu lato. Lange-Bertalot H. (ed.) Diatoms of Europe: Diatoms of the European Inland Waters and Comparable Habitats. Vol. 5., A.R.G. Gantner Verlag K.G., Ruggell. 916 pp | Morphology; Illustrations; Taxonomy; |
This page should be cited as:
Jüttner I. Halamphora normanii (Rabenhorst) Levkov; 2009; 208. In: Jüttner I., Carter C., Cox E.J., Ector L., Jones V., Kelly M.G., Kennedy B., Mann D.G., Turner J. A., Van de Vijver B., Wetzel C.E., 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=4202. [Accessed:
].
Image Gallery
Record last modified: 21/01/2025