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
Hexanchus griseus (Bonnaterre, 1788) Preferred
Hexanchus corinum Jordan & Gilbert, 1880 Synonym
Hexanchus corinus Jordan and Gilbert, 1880
Hexanchus griseus australis de Buen, 1960
Monopterinus griseus (Bonnaterre, 1788)
Notidanus griseus (Bonnaterre, 1788)
Notidanus monge Risso, 1827
Notidanus vulgaris Pérez Canto, 1886
Squalus griseus Bonnaterre, 1788
Squalus vacca Bloch and Schneider, 1801

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Hexanchus griseus (Bonnaterre, 1788) Preferred
Monopterinus griseus (Bonnaterre, 1788)
Hexanchus corinus Jordan and Gilbert, 1880
Hexanchus corinum Jordan & Gilbert, 1880
Squalus vacca Bloch and Schneider, 1801
Notidanus griseus (Bonnaterre, 1788)
Notidanus monge Risso, 1827
Hexanchus griseus australis de Buen, 1960
Squalus griseus Bonnaterre, 1788
Notidanus vulgaris Pérez Canto, 1886

Integrated Taxonomic Information System (ITIS)

Name Relationship
Hexanchus griseus (Bonnaterre, 1788) Preferred
Hexanchus corinus Jordan and Gilbert, 1880 Junior synonym
Hexanchus griseus australis de Buen, 1960
Notidanus monge Risso, 1827
Notidanus vulgaris Perez Canto, 1886
Squalus griseus Bonnaterre, 1788 Original name/combination
Squalus vacca Bloch and Schneider, 1801

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