| Name | Caulacanthus rigidus Kützing |
| Authorship | Kützing |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Caulacanthus Kützing |
| Remarks | Created from Taxon Name Import: Caulacanthus rigidus Kützing |
| GUID | urn:lsid:marinespecies.org:taxname:503504 |
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