Diatoms of North AmericaDiatoms of North America
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Compare Navicula recens

Lange-Bert. in Krammer and Lange-Bert. 1985

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The valves of N. recens differ from N. erifuga by the straight central raphe ends and generally wider valves. Navicula lanceolata has deflected central raphe ends, larger valves, and a larger central area. The valves of N. cari are more linear in shape. Navicula cari also has more radiate striae and denser areolae within each stria. Navicula eileeniae is smaller and has a higher stria density.

LM scalebar = 10 µm
46649 Lm2 46649 Lm5 46649 Lm4 46649 Lm3 46649 Lm6 46649 Lm1 46649 Lm7
Length Range
17-42 µm
Width Range
5.8-8.2 µm
Striae in 10 µm
11–13

Navicula erifuga

Lange-Bert. in Krammer and Lange-Bert. 1985

Navicula erifuga LM7 Navicula erifuga LM2 Navicula erifuga LM4 Navicula erifuga LM5 Navicula erifuga LM6 Navicula erifuga LM3 Navicula erifuga LM1
Length Range
21-36 µm
Width Range
5–7 µm
Striae in 10 µm
12–14

Navicula lanceolata

(C.Agardh) Ehrenb. 1838

Navicula lanceolata LM3 Navicula lanceolata LM7 Navicula lanceolata LM2 Navicula lanceolata LM6 Navicula lanceolata LM4 Navicula lanceolata LM1 Navicula lanceolata LM5
Length Range
30-60 µm
Width Range
9–12 µm
Striae in 10 µm
10–13

Navicula eileeniae

Potapova and Ciugulea 2019

Navicula eileeniae LM1 Navicula eileeniae LM2 Navicula eileeniae LM3 Navicula eileeniae LM4 Navicula eileeniae LM5 Navicula eileeniae LM6 Navicula eileeniae LM7
Length Range
17.8–26.5 µm
Width Range
4.2–5.4 µm
Striae in 10 µm
14-15

Navicula cari

Ehrenb. 1836

Navicula cari LM7 Navicula cari LM6 Navicula cari LM5 Navicula cari LM4 Navicula cari LM3 Navicula cari LM2 Navicula cari LM1
Length Range
27-52 µm
Width Range
6.3-9.0 µm
Striae in 10 µm
10-13