Perrier's Sifaka (IMAGE) University of California - Berkeley Caption Propithecus perrieri is one of the most endangered of all lemurs. Commonly known as Perrier's sifaka, this lemur inhabits a small area of dry forests in extreme northern Madagascar. Credit Photo by Edward E. Louis Jr. Usage Restrictions Available for use by the media with credit to Edward E. Louis Jr. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.