This document defines key terms used in the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). It defines species as a species, subspecies, or geographically separate population. It also defines specimens, parts and derivatives, readily recognizable, and split-listing. Specimens include animals or plants, alive or dead, and recognizable parts or derivatives. Parts include skins, bones, shells, etc. Derivatives include blood, medicines, perfumes, and objects made from parts. Trade refers to export, re-export, import, and introduction from the sea.