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Compare Melosira dickiei

(Thwaites) Kütz. 1849

Compare

Melosira varians is larger, has distinct scattered rimoportulae on the valve face and mantle and has proportionally greater mantle height. Brevisira arentii has marked radial ornamentation, especially near the valve face margin.

LM scalebar = 10 µm
Melosira dickiei LM3 Melosira dickiei LM5 Melosira dickiei LM2 Melosira dickiei LM1 Melosira dickiei LM4
Diameter
9.6-20.1 µm
Width Range
4.5-6.0 µm

Melosira varians

C.Agardh 1827

Melosira varians LM6 Melosira varians LM1 Melosira varians LM2 Melosira varians LM4 Melosira varians LM7 Melosira varians LM3
Diameter
6-30 µm
Width Range
5-15 µm

Also compare to

Brevisira arentii

(Kolbe) Krammer

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