Compare

Nitzschia angustatula may prove to be conspecific, as the dimensions (L = 13-24 µm, W = 4 µm, S = 16-20 in 10 µm) overlap between the two taxa. Also compare with Nitzschia compressa and N. compressa var. vexans.

LM scalebar = 10 µm
Nitzschia siliqua LM5 Nitzschia silicula var. commutata LM1 Nitzschia silicula var. commutata LM2 Nitzschia siliqua LM4 Nitzschia siliqua LM2 Nitzschia siliqua LM3 Nitzschia siliqua LM1
Length Range
16-20 µm
Width Range
3.1-3.8 µm
Striae in 10 µm
16-20

Also compare to

Nitzschia angustatula

BioData Reference
Krammer and Lange-Bertalot 2/2 Pl 36 Fig 6-10

Nitzschia compressa var. vexans

BioData Reference
Krammer and Lange-Bertalot 2/2 Pl 38 Fig 5-8

Nitzschia compressa var. elongata

BioData Reference
Krammer and Lange-Bertalot 2/2 Pl 37 Fig 9 10

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