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.

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Pygocentrus nattereri Kner, 1858 Preferred
Pygocentrus altus Gill, 1870 Synonym
Pygocentrus piraya (non Cuvier, 1819) Misapplied name
Pygocentrus stigmaterythraeus (non Fowler, 1911)
Pygocentrus ternetzi (Steindachner, 1908)
Rooseveltiella nattereri (Kner, 1858)
Serrasalmo piranha (non Spix & Agassiz, 1829)
Serrasalmo ternetzi Steindachner, 1908
Serrasalmus nattereri (non Günther, 1864)
Serrasalmus ternetzi Steindachner, 1908

FishBase

Name Relationship
Pygocentrus nattereri Kner, 1858 Preferred
Pygocentrus altus Gill, 1870
Pygocentrus piraya (non Cuvier, 1819)
Pygocentrus stigmaterythraeus (non Fowler, 1911)
Pygocentrus ternetzi (Steindachner, 1908)
Rooseveltiella nattereri (Kner, 1858)
Serrasalmo piranha (non Spix & Agassiz, 1829)
Serrasalmo ternetzi Steindachner, 1908
Serrasalmus nattereri (non Günther, 1864)
Serrasalmus ternetzi Steindachner, 1908

Integrated Taxonomic Information System (ITIS)

Name Relationship
Pygocentrus nattereri Kner, 1858 Preferred
Pygocentrus altus Gill, 1870 Junior synonym
Pygocentrus natterei Kner, 1858 Other, see comments
Rooseveltiella nattereri (Kner, 1858) Subsequent name/combination
Serrasalmus nattereri (Kner, 1858)

NCBI Taxonomy

Name Relationship
Pygocentrus nattereri Preferred
Pygocentus nattereri Misspelling
Pyocentrus nattereri Kner, 1858 Authority
Serrasalmus nattereri (Kner, 1858)
Serrasalmus nattereri

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