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Nupela carolina has a full raphe system on each valve.

LM scalebar = 10 µm
Nupela neglecta LM4 Nupela neglecta LM5 Nupela neglecta LM3 Nupela neglecta LM1 Nupela neglecta LM2 Nupela neglecta LM6 Nupela neglecta LM7
Length Range
3-15 µm
Width Range
2.6-4.5 µm
Striae in 10 µm
40-48

Nupela carolina

Potapova and Clason in Potapova et al. 2003

Nupela carolina LM7 Nupela carolina LM6 Nupela carolina LM4 Nupela carolina LM1 Nupela carolina LM2 Nupela carolina LM3 Nupela carolina LM5
Length Range
5-15 µm
Width Range
2.4-4.4 µm
Striae in 10 µm
42-54