Compare Stephanodiscus binderanus
Compare
Stephanodiscus binderanus var. oestrupii has a lesser mantle height and complex branching of the spines. Cyclostephanos invisitatus has greater areola and fascicle density, and branching fascicles. Stephanodiscus parvus has shallow mantles, a distinct central fultoportula and higher areola density. Stephanodiscus hantzschii and S. hantzschii f. tenuis have larger valves, shallow mantles and triseriate fascicles.
LM scalebar = 10 µm
Diameter
6.3-11.8 µm
6.3-11.8 µm
Width Range
2.6-4.7 µm
2.6-4.7 µm
Striae in 10 µm
10 to 15 based on circumferential density
10 to 15 based on circumferential density
Cyclostephanos invisitatus
Diameter
7.8-15.1 µm
7.8-15.1 µm
Striae in 10 µm
15-16 based on chord count, 12-15 based on circumferential density
15-16 based on chord count, 12-15 based on circumferential density
Stephanodiscus hantzschii fo. tenuis
Diameter
15.5-19 µm
15.5-19 µm
Striae in 10 µm
5.7-7.5 based on circumferential density
5.7-7.5 based on circumferential density
Stephanodiscus hantzschii
Diameter
11.8-20.3 µm
11.8-20.3 µm
Striae in 10 µm
6-9 fascicles based on circumferential count
6-9 fascicles based on circumferential count
