Diatoms of North AmericaDiatoms of North America
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Compare Epithemia sorex

Kütz. 1844

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Valves of E. adnata and E. turgida are less strongly convex on the dorsal margin and have a raphe canal arch that reaches less than half the distance from the ventral to the dorsal margin.

LM scalebar = 10 µm
Esor Mo000125 8Ed 1 Esor Ih0440 1Ed 1 Esor Mo000125 5Ed Esor Ih0440 2Ed 1 Esor Mo000125 7Ed Esor Mo000125 4Ed Esor Mo000125 6Ed
Length Range
20-33 µm
Width Range
7.3-9 µm
Striae in 10 µm
12-15

Epithemia adnata

(Kütz.) Bréb. 1838

Epad Iho44070 1Edited Epad Iho44070 6Edited Epad Iho44070 3Edited Epad Nrsa1180 6Edited Epad Iho44070 7Edited Epad Iho44070 4Edited
Length Range
32-70 µm
Width Range
7.5-9.7 µm
Striae in 10 µm
12-14

Epithemia turgida

(Ehrenb.) Kütz. 1844

Epithemia turgida LM5 Epithemia turgida LM1 Epithemia turgida LM4 Epithemia turgida LM2 Epithemia turgida LM3 Epithemia turgida LM6
Length Range
45-166 µm
Width Range
13.5-17 µm
Striae in 10 µm
8-10