| Name | Ceramium tenuissimum var. arachnoideum (C. Agardh) Foslie |
| Authorship | (C. Agardh) Foslie |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Ceramium tenuissimum (Roth) Areschoug |
| Remarks | Created from Taxon Name Import: Ceramium tenuissimum var. arachnoideum (C. Agardh) Foslie |
| GUID | urn:lsid:marinespecies.org:taxname:552027 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ceramium tenuissimum var. arachnoideum (C. Agardh) Foslie |
| Identification made in | [no date] (3) |