| Name | Ceramium japonicum Okamura |
| Authorship | Okamura |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Ceramium Roth |
| Remarks | Created from Taxon Name Import: Ceramium japonicum Okamura |
| GUID | urn:lsid:marinespecies.org:taxname:372349 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ceramium japonicum Okamura |
| Identification made in | [no date] (2) |