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
Hyphessobrycon Durbin in Eigenmann, 1908 Preferred
Megalamphodus Eigenmann 1915 Junior synonym

NCBI Taxonomy

Name Relationship
Hyphessobrycon Preferred
Megalamphodus Synonym


Name Relationship
Megalamphodus Eigenmann 1915 Preferred
Megalamphodus roseus Géry, 1960
Megalamphodus axelrodi (Travassos, 1959)
Megalamphodus micropterus Eigenmann, 1915
Megalamphodus uruguayensis Fowler, 1943
Megalamphodus heteresthes (Ulrey, 1894)
Megalamphodus rogoaguae Pearson, 1924
Megalamphodus sweglesi Géry, 1961
Megalamphodus megalopterus Eigenmann, 1915
Megalamphodus eques (Steindachner, 1882)
Megalamphodus ecuadorensis Eigenmann, 1915


Name Relationship
Hyphessobrycon Durbin in Eigenmann, 1908 Preferred
Hyphessobrycon simulans Géry, 1963
Hyphessobrycon maxillaris Fowler, 1932
Hyphessobrycon ellisi Pearson, 1924
Hyphessobrycon nigrifrons Ahl, 1936
Hyphessobrycon rubrostigma Hoedeman, 1956
Hyphessobrycon melasemeion Fowler, 1945
Hyphessobrycon newboldi (Fernandez-Yepez, 1949)
Hyphessobrycon ornatus Ahl, 1934
Hyphessobrycon callistus (Boulenger, 1900)
Hyphessobrycon georgetti Géry, 1961
Hyphessobrycon robertsi Anonymous [Axelrod], 1958
Hyphessobrycon cardinalis Myers & Weitzman, 1956
Hyphessobrycon stegemani Géry, 1961
Hyphessobrycon erythrurus Ahl, 1928
Hyphessobrycon luetkeni (Boulenger, 1887)
Hyphessobrycon gracilis (Lütken, 1875)
Hyphessobrycon stictus Durbin, 1909
Hyphessobrycon innesi Myers, 1936
Hyphessobrycon serpae Durbin, 1908
Hyphessobrycon stigmatias Fowler, 1913
Hyphessobrycon thompsoni Fowler, 1949


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