Web sites
Online version of the Annual Checklist:
http://www.catalogueoflife.org/annual-checklist/2011
Latest version of the Catalogue of Life (quarterly editions):
Archives of the Annual Checklists 2000-2011 and quarterly editions:
www.catalogueoflife.org/services
Web service
Species 2000 provides web services to facilitate automated access to the Annual Checklist by computer programs. Please visit www.catalogueoflife.org/services for more information.