Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

Integrated Taxonomic Information System (ITIS)

Name Relationship
Spyridia filamentosa (Wulfen) Harvey Preferred
Fucus filamentosus Wulfen Synonym

AlgaeBase

Name Relationship
Spyridia filamentosa (Wulfen) Harvey, 1833 Preferred
Fucus filamentosus Wulfen, 1803
Ceramium filamentosum (Wulfen) C. Agardh 1828
Spyridia spinella Sonder, 1845
Hutchinsia filamentosa (Wulfen) C. Agardh 1824
Spyridia vilosissima Zanardini 1851
Spyridia confervoides Zanardini 1851
Spyridia breviarticulata J.Agardh 1876
Polysiphonia filamentosa (Wulfen) Sprengel 1827
Spyridia filamentosa arbuscula Sonder 1855
Spyridia biannulata J.Agardh 1876

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