Recently this species has moved from Endangered to Critically Endangered on the 2007 Red List of endangered species of animals and plants issued by the World Conservation Union , and qualifies for protection under the CITES ( Convention on International Trade of Endangered Species ) Appendix II . Since 2007 , the species is listed as Critically Endangered on the Red List of Threatened Species issued by IUCN , and protected by CITES Appendix I.