Compare Brachysira microcephala
Compare
Brachysira ocalanesis is wider and more elongate.
Brachysira vitrea has a broader valve and finer striae and longer, pointed papillae (SEM).
Brachysira silvicola (from New Caledonia) has truncated apices, a broader hyaline region between the axial area ribs, and a lower stria density.
Brachysira hofmanniae (from Europe) has an undulating valve margin and truncate to capitate apices.
LM scalebar = 10 µm
Length Range
17-30 µm
17-30 µm
Width Range
3.5-7 µm
3.5-7 µm
Striae in 10 µm
30-36
30-36
Brachysira ocalanensis
Length Range
19.0-38.6 µm
19.0-38.6 µm
Width Range
4.0-5.7 µm
4.0-5.7 µm
Striae in 10 µm
32-34, more closely spaced towards the apices
32-34, more closely spaced towards the apices
