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.

FishBase

Name Relationship
Hippocampus erectus Perry, 1810 Preferred
Hippocampus brunneus Bean 1906 Synonym
Hippocampus fascicularis Kaup 1856
Hippocampus hudsonius DeKay, 1842
Hippocampus kincaidi Townsend & Barbour 1906
Hippocampus laevicaudatus Kaup 1856
Hippocampus marginalis Kaup 1856
Hippocampus punctulatus Guichenot, 1853
Hippocampus stylifer Jordan & Gilbert 1882
Hippocampus tetragonous (Mitchill, 1814) Ambiguous synonym
Hippocampus villosus Günther 1880
Syngnathus caballus Larrañaga 1923
Syngnathus tetragonous Mitchill, 1814

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Hippocampus erectus Perry, 1810 Preferred
Hippocampus hudsonius DeKay, 1842
Hippocampus stylifer Jordan & Gilbert 1882
Hippocampus villosus Günther 1880
Hippocampus laevicaudatus Kaup 1856
Hippocampus fascicularis Kaup 1856
Syngnathus caballus Larrañaga 1923
Hippocampus tetragonous (Mitchill, 1814)
Hippocampus punctulatus Guichenot, 1853
Hippocampus brunneus Bean 1906
Syngnathus tetragonous Mitchill, 1814
Hippocampus kincaidi Townsend & Barbour 1906
Hippocampus marginalis Kaup 1856

Integrated Taxonomic Information System (ITIS)

Name Relationship
Hippocampus erectus Perry, 1810 Preferred
Hippocampus hudsonius DeKay, 1842 Junior synonym
Hippocampus punctulatus Guichenot, 1853

NCBI Taxonomy

Name Relationship
Hippocampus erectus Preferred
Hippocampus erectus Perry, 1810

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