Compare Sellaphora nigri
Compare
Sellaphora nigri is morphologically very similar to S. atomoides, and many specimens may not be distinguished from one another in LM. In general, S. nigri is wider, more elliptic, with longer central striae resulting in a less distinct 'bow-tie' shaped central area. Additionally, S. nigri is more widely distributed and pollution-tolerant, while S. atomoides is considered indicative of more 'pristine' conditions. Sellaphora saugerresii is biseriate (although this feature is not visible in LM) and has a lower stria density.
LM scalebar = 10 µm
Length Range
4.2-13 µm
4.2-13 µm
Width Range
2.8-4.2 µm
2.8-4.2 µm
Striae in 10 µm
26-32
26-32
