Compare Achnanthes felinophila
Compare
Achnanthes felinophila and A. undulorostrata have undulate valves in larger specimens. Achnanthes felinophila has valves with narrow cunate ends, while A. undulorostrata has more broadly rounded ends.
LM scalebar = 10 µm
Length Range
16.0-42.2 µm
16.0-42.2 µm
Width Range
6-10 µm
6-10 µm
Striae in 10 µm
13-15 on both valves
13-15 on both valves
Achnanthes undulorostrata
Length Range
29-37 µm
29-37 µm
Width Range
8.0-9.5 µm
8.0-9.5 µm
Striae in 10 µm
14-15 on raphe valve, 12-13 on rapheless valve
14-15 on raphe valve, 12-13 on rapheless valve