Diatoms of North AmericaDiatoms of North America
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Compare Cavinula scutelloides

(W.Sm.) Lange-Bert. in Lange-Bert. and Metzeltin 1996

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Cavinula scutelloides differs from C. vincentii and C. pseudoscutiformis by larger valve size and much coarser striae and areolae.

LM scalebar = 10 µm
Gc8526 1A Gc8526 4 Gc8526 5 Gc8526 3 Gc8526 2 Gc8526 6
Length Range
13-24 µm
Width Range
10-15 µm
Striae in 10 µm
6-8

Cavinula vincentii

D.Anton. and Hamilton in D.Anton. et al. 2009

Cavinula vincentii LM4 Cavinula vincentii LM1 Cavinula vincentii LM2 Cavinula vincentii LM3 Cavinula vincentii LM5
Length Range
12-15 µm
Width Range
8-11 µm
Striae in 10 µm
23-26

Cavinula pseudoscutiformis

(Hust.) D.G.Mann and Stickle in Round, R.M.Crawford and D.G.Mann 1990

Cavinula pseudoscutiformis LM2 Cavinula pseudoscutiformis LM1 Cavinula pseudoscutiformis LM4 Cavinula pseudoscutiformis LM5 Cavinula pseudoscutiformis LM3
Length Range
5.5-10.0 µm
Width Range
4.9-9.3 µm
Striae in 10 µm
16-24 in the center valve