Diatoms of North AmericaDiatoms of North America
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Compare Envekadea vanlandinghamii

Graeff, Kociolek and Rushforth 2013

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Envekadea pseudocrassirostris has a slightly smaller central area and the apices are tapered.

The apices of E. hedinii are distinctly capitate.

Envekadea metzeltinii has relatively parallel valve margins.

LM scalebar = 10 µm
Envekadea vanlandinghamii LM6 Envekadea vanlandinghamii LM5 Envekadea vanlandinghamii LM4 Envekadea vanlandinghamii LM3 Envekadea vanlandinghamii LM2 Envekadea vanlandinghamii LM1
Length Range
26-46 µm
Width Range
6-7.5 µm
Striae in 10 µm
25-27

Envekadea metzeltinii

Sylvia S.Lee, Tobias, and Van de Vijver 2013

Envekadea metzeltinii LM1 Envekadea metzeltinii LM2 Envekadea metzeltinii LM3 Envekadea metzeltinii LM4 Envekadea metzeltinii LM5
Length Range
31-70 µm
Width Range
8-11 µm
Striae in 10 µm
18-19

Also compare to

Envekadea pseudocrassirostris

(Hust.) Van de Vijver et al.

Envekadea hedinii

(Hust.) Van de Vijver et al.