STREPSIRRHINI E. Geoffroy Saint-Hilaire 1812

Families: 7 families with 23 genera and 88 species in 3 infraorders:

Infraorder LEMURIFORMES Gray 1821

Family Cheirogaleidae Gray 1872 (5 genera with 21 species)

Family Lemuridae Gray 1821 (5 genera with 19 species and 7 subspecies)

Family Lepilemuridae Gray 1870 (1 genus with 8 species)

Family Indridae Burnett 1828 (3 genera with 11 species and 6 subspecies)

Infraorder CHIROMYIFORMES Anthony and Coupin 1931

Family Daubentoniidae Gray 1863 (1 genus with 1 species)

Infraorder LORISIFORMES Gregory 1915

Family Lorisidae Gray 1821 (5 genera with 9 species and 10 subspecies)

Family Galagidae Gray 1825 (3 genera with 19 species and 14 subspecies)

Discussion: McKenna and Bell (1997) divide the Strepsirrhini into superfamilies Daubentonioidea, Lemuroidea, Loroidea (including Cheirogaleidae) and Indroidea. Evidence that Cheirogaleidae is not related to lorises, and that Indridae is sister-group to Lemuridae, is given by Groves (2001 c).