Synonymes (CAS Catalogue of diatoms) :
Hemiptychus ehrenbergii (J.W. Bailey in Ehrenberg) Mann 1907
Hemiptychus ehrenbergii (Bailey in Ehrenberg) Kuntze 1898
Arachnodiscus ehrenbergii J.W. Bailey in Ehrenberg 1849
Document :http://www.microscopy-uk.eu/diatomist/Arachnoidiscus.pdf