Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Order Primates Linnaeus, 1758 - primates
Suborder Strepsirrhini Geoffroy Saint-Hilaire, 1812
Infraorder Lemuriformes Gregory, 1915
Superfamily Lemuroidea Gray, 1821
Family Lemuridae Gray, 1821 - large lemurs
Genus Hapalemur Geoffroy Saint-Hilaire, 1851 - gentle lemurs
Hapalemur griseus (Link, 1795) - grey gentle lemur
[Hapalemur griseus griseus]ᵀ (Link, 1795)