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An LSID is a life science identifier. LSIDs are used to provide a unique identifier for objects of interest in the life sciences. They facilitate useful transfer of data contained in XML files from one computer to another. When a computer receives data from two different sources, it can check the LSIDs and determine if both sets of data refer to the same object. LSIDs can also be used to help humans locate websites with information about the objects.

LSIDs in Species File Software

  • The original plan calls for eventual use of LSIDs for taxon names and taxon concepts; however, the only portion currently in progress is for scientific names. This means simple names at the rank of genus and higher, and binomial (including trinomial, etc.) names below the rank of genus. Protonyms, taxon concepts, images, etc. may be given LSIDs at a later time.
  • Hover over the orange LSID logo to see the LSID resolver prefix ( Append this prefix to the urn string that appears beside the orange LSID logo. For example, the urn string for the family Acrididae in the Orthoptera Species File is "" To reach Acrididae via the LSID resolver, combine the prefix with the urn string:
  • Click or copy and paste this string into a browser.

Activating LSIDs

LSID tables have been added to all species file databases, but data are being added into those tables only after the tables are made active on a case by case basis. Users who have secure access may go to the page for selecting an administrative function and select "Manage use of LSIDs." The user then sees a page that allows the status to be changed between "None", "Active" and "Dormant".

External links

Personal tools

Species Files