Class Mammalia Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Lemuridae Gray, 1821 - large lemurs Genus Hapalemur Geoffroy Saint-Hilaire, 1851 - gentle lemurs Hapalemur griseus (Link, 1795) - grey gentle lemur Hapalemur griseus occidentalis see Hapalemur occidentalis Rumpler, in Tattersall & Sussman, eds., 1975