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Nupela elegantula

Potapova 2011      Category: Symmetrical biraphid

Nupela decipiens

 

Nupela fennica

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Marina Potapova - October 2010
Length Range: 12-26 µm
Width Range: 3.1-4.0 µm
Striae in 10 µm: 34-38

Description

Valves are linear-lanceolate, with broadly subrostrate ends. Striae are slightly radiate throughout the valve, parallel or slightly convergent at the apices. There are 3-4 areolae in each stria on the valve face and one areola on the mantle. Raphe is absent on one of the valves. The raphe valve has rhombic-lanceolate axial area and round central area. The rapheless valve has rhombic-lanceolate axial area, but no distinct central area. The raphe has double-curved external slit and straight internal slit. External proximal raphe ends are moderately expanded, while internal proximal raphe slits are T-shaped. Terminal raphe fissures are sharply deflected towards secondary side of the valve.



Original Description

Basionym:
Author: Potapova 2011
Length Range: 12-26 µm
Width Range: 3.1-4 µm
Striae in 10 µm: 34-38

Original Description

Valves linear-lanceolate 3.1–4.0μm wide,12–26μm long with broadly subrostrate ends. Striae slightly radiate throughout the valve, parallel or slightly convergent at the apices, 34–38 in 10μm. There are 3– 4 areolae in each stria on the valve face and one areola on the mantle. Raphe absent on one of the valves. Raphe valve with rhombic-lanceolate axial area and round central area. Rapheless valve with rhombic-lanceolate axial area, but without distinct central area. Raphe with double-curved external slit and straight internal slit. External proximal raphe ends moderately expanded, internal proximal raphe slits T-shaped. Terminal raphe fissures sharply deflected towards secondary side of the valve.

Original Images


Cite This Page:
Potapova, M. (2010). Nupela elegantula. In Diatoms of the United States. Retrieved May 22, 2018, from http://westerndiatoms.colorado.edu/taxa/species/nupela_elegantula

Species: Nupela elegantula

Contributor: Marina Potapova

Reviewer: Sarah Spaulding

Citations

Potapova, M. (2011). New species and combinations in the genus Nupela from the USA. Diatom Research. 10.1080/0269249X.2011.575111

Links & ID's

Index Nominum Algarum (INA)

California Academy of Sciences (CAS)

North American Diatom Ecological Database (NADED)

NADED ID:

Autecology Discussion