Diatoms of North AmericaDiatoms of North America
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Compare Navicula rhynchocephala

Ehrenb. 1844

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This species is more linear than N. salinarum and N. rhynchotella and more lanceolate than N. tripunctata and other lineolate species of the genus.

LM scalebar = 10 µm
Navicula rhynchocephala LM2 Navicula rhynchocephala LM3 Navicula rhynchocephala LM4 Navicula rhynchocephala LM1 Navicula rhynchocephala LM5
Length Range
48-53 µm
Width Range
9-10 µm
Striae in 10 µm
8-9 at the center, 11-12 towards the apices

Navicula salinarum

Grunow 1880

Navicula salinarum LM1 Navicula salinarum LM2 Navicula salinarum LM4 Navicula salinarum LM3 Navicula salinarum LM5
Length Range
23-35 µm
Width Range
8-9 µm
Striae in 10 µm
13-17

Navicula tripunctata

(O.F.Müll.) Bory 1822

Navicula tripunctata LM6 Navicula tripunctata LM4 Navicula tripunctata LM8 Navicula tripunctata LM10 Navicula tripunctata LM2 Navicula tripunctata LM12 Navicula tripunctata LM14
Length Range
32-60 µm
Width Range
6–10 µm
Striae in 10 µm
9–12

Navicula rhynchotella

Lange-Bert. 1993

Navicula rhynchotella LM1 Navicula rhynchotella LM2 Navicula rhynchotella LM3 Navicula rhynchotella LM4 Navicula rhynchotella LM5 Navicula rhynchotella LM6 Navicula rhynchotella LM7
Length Range
47-54 µm
Width Range
12.1-13.5 µm
Striae in 10 µm
10-12