Compare Halamphora coffeaeformis
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Halamphora acutiuscula and H. tumida both have a lower stria density.
LM scalebar = 10 µm
Length Range
15-40 µm
15-40 µm
Width Range
5-7 µm
5-7 µm
Striae in 10 µm
17-21 at center, 22-24 near apices
17-21 at center, 22-24 near apices
Halamphora latecostata
Length Range
16-50 µm
16-50 µm
Width Range
4.1-7.9 µm
4.1-7.9 µm
Striae in 10 µm
9-13 at dorsal center; 15-18 at dorsal apices; 19-20 ventral
9-13 at dorsal center; 15-18 at dorsal apices; 19-20 ventral