Diatoms of North AmericaDiatoms of North America
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Compare Encyonema sibericum

Krammer and Lange-Bert. 1999

Compare

Encyonema hebridicum and E. norvegicum lack protracted apices. Along with most other species of Encyonema, they have more cymbelloid valves, that is, valves have a more strongly arched dorsal margin.

LM scalebar = 10 µm
Encyonema sibericum LM1 Encyonema sibericum LM2 Encyonema sibericum LM3 Encyonema sibericum LM4 Encyonema sibericum LM5 Encyonema sibericum LM6
Length Range
31-57 µm
Width Range
5.3-6.9 µm
Striae in 10 µm
10-14

Encyonema hebridicum

(Gregory) Grunow in Cleve and J.D.Möller 1877

Encyonema hebridicum LM1 Encyonema hebridicum LM2 Encyonema hebridicum LM3 Encyonema hebridicum LM4 Encyonema hebridicum LM5 Encyonema hebridicum LM6
Length Range
29.5-63 µm
Width Range
8-11 µm
Striae in 10 µm
9-10 at the center

Encyonema norvegicum

(Grunow) A.Mayer 1947

Encyonema norvegicum LM7 Encyonema norvegicum LM6 Encyonema norvegicum LM5 Encyonema norvegicum LM4 Encyonema norvegicum LM3 Encyonema norvegicum LM2 Encyonema norvegicum LM1
Length Range
25.0–43.0 µm
Width Range
7.0–8.0 µm
Striae in 10 µm
Dorsal: 12–13 at the center, 14–15 at the ends; ventral: 13–15 at the center, 15–17 at the ends