Compare Caloneis fusus | Species - Diatoms of North America

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Caloneis tenuis has slightly larger valves and fascia-type central area. Caloneis arctica has larger valves and lower stria density. Species within Genkalia have a similar appearance of the axial and central area, particularly in smaller valves.

LM scalebar = 10 µm

Length Range
21-32 µm

Width Range
3.6-4.8 µm

Striae in 10 µm
21-23

Genkalia digitulus

(Hust.) Lange-Bert. and Kulikovskiy 2012

Genkalia Digitulus Me10010 A 102417 02 C

Genkalia Digitulus Nh10066 A 121117 11 C

Genkalia Digitulus Me10023 A 101817 35 C

Genkalia Digitulus Me10023 A 101817 31 C

Genkalia Digitulus Cthp001 A 112117 68 C

Length Range
8.9-18.2 µm

Width Range
3.8-4.6 µm

Striae in 10 µm
28-33

Also compare to

Caloneis tenuis

BioData Reference
Krammer and Lange-Bertalot 2/1 Pl 174 Fig 5-10

Caloneis arctica

(Krasske) Lange-Bert.

Genkalia digituloides

(Lange-Bert.) Lange-Bert. and Kulikovskiy