Diatoms of North AmericaDiatoms of North America
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Compare Navicula erifuga

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

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The proximal raphe ends of N. erifuga are slightly deflected, while both N. libonensis and N. recens possess straight proximal raphe ends. Valves of N. lanceolata are broader than N. erifuga, have straight central raphe ends and the central area is symmetric. Valves of N. viridulacalcis are nearly linear and larger in size. Navicula escambia and N. symmetrica both have striae that are radiate throughout the valve.

LM scalebar = 10 µm
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 escambia

(R.M.Patrick) Metzeltin and Lange-Bert. 2007

Navicula escambia LM4 4 Navicula Escambia 103388B 11 Navicula escambia LM2 Navicula escambia LM3 Navicula escambia LM1 6 Navicula Escambia 103388B 15
Length Range
28.1-48.6 µm
Width Range
6.3-9.1 µm
Striae in 10 µm
10-13

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 libonensis

Schoeman 1969

Gs138229 Nalib3 Navicula libonensis LM3 Gs138229 Nalib1 Gs138229 Nalib2 Navicula libonensis LM2 Navicula libonensis LM1
Length Range
27-35 µm
Width Range
5.9-7.0 µm
Striae in 10 µm
12-13

Navicula recens

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

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 symmetrica

R.M.Patrick 1944

Navicula symmetrica LM2 Navicula symmetrica LM3 Navicula symmetrica LM1 Navicula symmetrica LM6 Navicula symmetrica LM4 Navicula symmetrica LM9
Length Range
24-34.5 µm
Width Range
5-6.5 µm
Striae in 10 µm
12-17

Also compare to

Navicula viridulacalcis

Lange-Bert.