1 - the incoming name is our primary name for a taxon in our database or its homotypic synonym (in the latter case primary name appears in preferred name column)
2 - the incoming name is a secondary name for a taxon in our database (it could be listed as a heterotypic synonym, a misspelling, a common name, or several other nametypes)
3 - the incoming name is not found in our database
+ - the incoming name is duplicated in our database
(used in combination with the other status codes)

<- press button to see a status report for the following list of names:

Homo sapiens
Cephalosporium acremonium var. radiatum
Arabidopsis thaliana
Homo neanderthalensis
Proboscidea
Bacillus
reptiles
Agathis montana
Mus musacris
Mus muscaris
Explanation of status codes for taxids

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1 - the incoming taxid is our primary id for a taxon in our database
2 - the incoming taxid is a secondary id for a taxon in our database
3 - the incoming taxid is not yet associated with a public sequence entry
4 - the incoming taxid is not found in our database

<- press button to see a status report for taxids 1 thru 25

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Comments and questions to info@ncbi.nlm.nih.gov.
Credits: Elena Starchenko, Scott Federhen, Vladimir Soussov