Diatoms of North AmericaDiatoms of North America
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Compare Cavinula cocconeiformis

(Gregory ex Grev.) D.G.Mann and Stickle in Round, R.M.Crawford and D.G.Mann 1990

Compare

Cavinula cocconeiformis is more elongate and oval than C. pseudoscutiformis, C. scutelloides and C. vincentii. In addition, the areolae are not punctate as in the other taxa.

LM scalebar = 10 µm
Cavinula cocconeiformis LM7 Cavinula cocconeiformis LM1 Cavinula cocconeiformis LM2 Cavinula cocconeiformis LM3 Cavinula cocconeiformis LM4 Cavinula cocconeiformis LM5
Length Range
9-28 µm
Width Range
6-9 µm
Striae in 10 µm
26-32 in the center valve, 28-34 at the ends

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

Cavinula scutelloides

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

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