Compare Sellaphora laevissima
Compare
Sellaphora bacillum is similar in shape, but has a distinct canopeum around the central area, lower stria density and more acutely rounded apices.
Sellaphora alastos and S. americana are similar in shape, however they have a distinct canopeum and broader valves.
Sellaphora pupula is similar in striae ornamentation, but has protracted apices, an elliptic-lanceolate valve shape and polar bars that wrap around the apices.
Sellaphora fusticulus is similar in shape and stria ornamentation, but has a rhombic central area with 4-6 striae bordering the central area.
LM scalebar = 10 µm
Length Range
32-53 µm
32-53 µm
Width Range
8.0-10.6 µm
8.0-10.6 µm
Striae in 10 µm
17-19
17-19
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