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Nupela vitiosa

(Schim.) Siver and Hamilton 2005      Category: Symmetrical biraphid
BASIONYM: Navicula vitiosa Schim. 1978

Nupela tenuicephala


Nupela wellneri

LM scalebar = 10 µm = 80 pixels.


Contributor: Marina Potapova - October 2010
Length Range: 7-15 µm
Width Range: 2.7-3.6 µm
Striae in 10 µm: 35-40


Valves are linear-elliptical-lanceolate with rounded slightly drawn-out ends.ends. Axial area is narrowly linear. Central area is elliptical or round, usually asymmetrically expanded to one side of the valve. Striae are radiate in the middle, slightly convergent at apices, 35-40 in 10 μm. Areolae transersely ellitpical, covered by external hymens, approximately 45 in 10 mm. Raphe is filiform, straight or very slightly curved, with slightly expanded external proximal endings.

Original Description

Basionym: Navicula vitiosa
Author: Schim. 1978
Length Range: 10-16 µm
Width Range: 3-4 µm
Striae in 10 µm: 35-40

Original Description

Schalen linear-elliptisch mit schwach konvexen Seiten und breit gerundeten Enden, 10-16 μm lang, 3-4 μm breit. Raphe gerade bis leicht gebogen, fadenförmig. Polspalten fast rechtwinklig nach derselben Seite abgebogen, Zentralporen ziemlich weit vonein-ander entfernt. Axialarea eng linear, Zentralarea groβ, rundlich, einseitig bis an den Rand reichend. Transapikalstreifen in der Mitte radial, an den Enden schwach konvergent, 35-40 in 10 μm, punktiert, ca. 50 Poroide in 10 μm, in unregelmäβigen, welligen Längsreihen

Original Images

Cite This Page:
Potapova, M. (2010). Nupela vitiosa. In Diatoms of the United States. Retrieved May 26, 2018, from

Species: Nupela vitiosa

Contributor: Marina Potapova

Reviewer: Sarah Spaulding


Schimanski, H. (1978). Beitrag zur Diatomeenflora des Frankenwaldes. Nova Hedwigia 30: 557-634.

Siver, P.A. and Hamilton, P.B. (2005). Observations on new and rare species of freshwater diatoms from Cape Cod, Massachusetts, USA. Canadian Journal of Botany 83:362-378.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nupela vitiosa CAS

North American Diatom Ecological Database (NADED)

NADED ID: 92018

Autecology Discussion