Eunotia naegelii

Migula 1907      Category: Eunotioid
BASIONYM: Eunotia naegelii Migula 1907

Eunotia mydohaimasiae


Eunotia nymanniana

LM scalebar = 10 µm = 40 pixels.


Contributor: Paula Furey - March 2012
Length Range: 42-180 µm
Width Range: 2.5-3.5 µm
Striae in 10 µm: 14-17 in the center, 16-22 at the ends


Valves moderately arched. The ventral margin is concave, while the dorsal margin is convex. Valves become progressively narrower toward the apices. Helictoglossae are located close to the apices. The apices are slightly inflated and slightly recurved toward the dorsal margin. The distal raphe end curves on to the valve face, then bends 180º and continues a short distance toward the proximal raphe ends. This raphe curvature is visible in the LM. The areolae are unresolved in the LM. Aberrations may occur in the valves, often in the form of a protuberance or bump on the ventral margin.

Original Description

Basionym: Eunotia naegelii
Author: Migula 1907
Length Range: 40-75 µm
Striae in 10 µm: 17-19

Original Description

Original Images

Cite This Page:
Furey, P. (2012). Eunotia naegelii. In Diatoms of the United States. Retrieved August 30, 2016, from

Species: Eunotia naegelii

Contributor: Paula Furey

Reviewer: Marina Potapova


Migula, W. (1907). Kryptogamen-Flora von Deutschland, Deutsch-Osterreich und der Schweiz im Anschluss an Thome’s Flora von Deutschland, Osterreich und der Schweiz. (Band VI, Kryptogamen-Flora), Band II, Algen, Teil 1, Cyanophyceae, Diatomaceae, Chlorophyceae. Friedrich von Zenzschwitz, Gera. pp. 1-918, 43 pls.

Links & ID's

Index Nominum Algarum (INA)

California Academy of Sciences (CAS)

Eunotia naegelii CAS

North American Diatom Ecological Database (NADED)

NADED ID: 33036

Autecology Discussion