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.

NCBI Taxonomy

Name Relationship
Alcaligenes Preferred
Alcaligenes Castellani and Chalmers 1919 Synonym

NCBI Taxonomy

Name Relationship
Alcaligenaceae bacterium FB188 Preferred
Alcaligenes sp. (strain DSM 11172)
Bordetella sp. (strain FB188)
Bordetella/Alcaligenes strain FB188 (DSM 11172)

NCBI Taxonomy

Name Relationship
Alcaligenaceae bacterium R14C4 Preferred
Alcaligenes sp. R14C4 Misspelling

IRMNG

Name Relationship
Alcaligenes Castellani & Chalmers, 1919 (Approved Lists, 1980) Preferred
Alcaligenes pacificus Baumann et al. 1972 (Approved Lists 1980).
Alcaligenes aquamarinus (ZoBell and Upham 1944) Hendrie et al. 1974 (Approved Lists 1980).
Alcaligenes carboxydus (Nozhevnikova and Zavarzin 1974) Cypionka et al. 1980
Alcaligenes radiobacter (Beijerinck and van Delden 1902) Conn 1939
Alcaligenes denitrificans Leifson and Hugh 1954
Alcaligenes bronchisepticus (Ferry 1912) Bergey et al. 1925
Alcaligenes piechaudii Kiredjian et al. 1986
Alcaligenes bronchicanis (Ferry 1911) Haupt 1935
Alcaligenes denitrificans (ex Leifson and Hugh 1954) Rüger and Tan 1983.
Alcaligenes ruhlandii (Packer and Vishniac 1955) Aragno and Schlegel 1977

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