Related how?

Biota (Life)
Eukaryote (Eukarya)
Chromista
Bacillariophyta
Coscinodiscophyceae (Centricae)
Thalassiosirales
Stephanodiscaceae
Stephanodiscus
Stephanodiscus astraea

Stephanodiscus astraea var. matrensis (68379180)