Endemic species
Definition
Species for which the entire global range is restricted to the site, the region or the country (the level of endemicity must be defined).
Source
Appendix B Glossary. "Climate, Community & Biodiversity Standards". (Second Edition - December 2008). http://www.cbd.int/convention/convention.shtml
Alternative definition
Species is endemic when found only in a certain strictly limited geographical region, i.e. restricted to a specified region or locality.
Alternative source
Gardens of Biodiversity, FAO, 2010 (http://www.fao.org/3/a-i1687e.pdf).