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.

South African Vertebrates

Name Relationship
Stenella coeruleoalba (Meyen, 1833) Preferred
Delphinus longirostris (Gray, 1828). Synonym
Delphinus tethyos Gervais, 1853
Delphinus asthenops Cope, 1865
Stenella styx (Gray, 1846)
Stenella asthenops (Cope, 1865)
Delphinus coeruleoalbus Meyen, 1833
Stenella crotaphiscus (Cope, 1865)
Delphinus crotaphiscus Cope, 1865
Delphinus euphrosyne Gray, 1846
Delphinus styx Gray, 1846
Phocaena crassidens Owen, 1846
Orca meridionalis Flower, 1865
Stenella euphrosyne (Gray, 1846)

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Stenella coeruleoalba (Meyen, 1833) Preferred
Stenella asthenops (Cope, 1865)
Stenella crotaphiscus (Cope, 1865)
Stenella euphrosyne (Gray, 1846)
Stenella styx (Gray, 1846)
Delphinus tethyos Gervais, 1853
Delphinus coeruleoalbus Meyen, 1833
Delphinus styx Gray, 1846
Delphinus euphrosyne Gray, 1846
Delphinus asthenops Cope, 1865
Delphinus crotaphiscus Cope, 1865

Integrated Taxonomic Information System (ITIS)

Name Relationship
Stenella coeruleoalba (Meyen, 1833) Preferred
Stenella asthenops (Cope, 1865) Junior synonym
Stenella crotaphiscus (Cope, 1865)
Stenella euphrosyne (Gray, 1846)
Stenella styx (Gray, 1846)
Delphinus tethyos Gervais, 1853
Delphinus coeruleoalbus Meyen, 1833 Original name/combination
Delphinus styx Gray, 1846
Delphinus euphrosyne Gray, 1846
Delphinus asthenops Cope, 1865
Delphinus crotaphiscus Cope, 1865

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