Diatoms of North AmericaDiatoms of North America
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Compare Cavinula jaernefeltii

(Hust.) D.G.Mann and A.J.Stickle 1990

Compare

Cavinula cocconeiformis has a larger and more oval central area and slightly radiate striae at mid-valve. Small specimens of C. cocconeiformis and C. jaernefltii are difficult to distinguish from one another. Cavinula vincentii has strongly radiate striae at mid-valve.

LM scalebar = 10 µm
Cavinula Jaernefeltii Nyhp001 A 121417 05 C Cavinula Jaernefeltii Nh10003 A 041518 04 C Cavinula Jaernefeltii Me10016 A Vanox 111617 42 C Cavinula Jaernefeltii Vt10003 V2 A 011018 10 C Cavinula Jaernefeltii Mehp002 A 110817 39 C Cavinula Jaernefeltii Nh10003 B 041518 02 C
Length Range
10.1-16.3 µm
Width Range
7-9.4 µm
Striae in 10 µm
24-28 at center valve, 28-32 at the ends

Cavinula cocconeiformis

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

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