Compare Sellaphora fusticulus
Compare
Sellaphora laevissima has similar dimensions, valve outline and striation, but differs by a rectangular central area and polar bars visible in LM. Sellaphora alastos has a similar valve shape, but differs by a rectangular central area and a distinct conopeum. Sellaphora americana has wider valves and a distinct conopeum. Sellaphora bacillum has rounded apices and a distinct conopeum.
LM scalebar = 10 µm
Length Range
29.1-45.5 µm
29.1-45.5 µm
Width Range
7-9 µm
7-9 µm
Striae in 10 µm
15-17 at the valve center, 18-20 at the apices
15-17 at the valve center, 18-20 at the apices
Sellaphora alastos
Length Range
41.0-82.0 µm
41.0-82.0 µm
Width Range
11.0-17.0 µm
11.0-17.0 µm
Striae in 10 µm
17-19 midway between valve center and apex
17-19 midway between valve center and apex
Sellaphora americana
Length Range
58.3-93.4 µm
58.3-93.4 µm
Width Range
14.6-19.1 µm
14.6-19.1 µm
Striae in 10 µm
16-18 midway between valve center and apex
16-18 midway between valve center and apex
