Compare

Brachysira brebissonii has smaller, more lanceolate valves with a higher density of striae (26-35 in 10 µm).

LM scalebar = 10 µm
Brachysira arctoborealis LM1 Brachysira arctoborealis LM2 Brachysira arctoborealis LM3 Brachysira arctoborealis LM4 Brachysira arctoborealis LM5 Brachysira arctoborealis LM6
Length Range
21.7-48.2 µm
Width Range
7.2-12.1 µm
Striae in 10 µm
24-26

Brachysira brebissonii

R.Ross in B.Hartley 1986

Brachysira brebissonii LM7 Brachysira brebissonii LM6 Brachysira brebissonii LM5 Brachysira brebissonii LM4 Brachysira brebissonii LM3 Brachysira brebissonii LM2 Brachysira brebissonii LM1
Length Range
11-36 µm
Width Range
4-8 µm
Striae in 10 µm
26-35

Diatoms of North America is running a fundraising campaign to keep the servers in operation. We need you to reach our $25,000 fundraising goal.

If you use and appreciate DONA, make your DONAtion today.

For the Gift Designation, type "diatom" in the search box and select "Diatom Lab Research Fund". This is the designated fund for diatoms.org.