- family: Synotaxidae
- genus: Synotaxus
- species: Synotaxus bonaldoi Santos & Rheims, 2005
- species: Synotaxus brescoviti Santos & Rheims, 2005
- species: Synotaxus ecuadorensis Exline, 1950
- species: Synotaxus itabaiana Santos & Rheims, 2005
- species: Synotaxus leticia Exline & Levi, 1965
- species: Synotaxus longicaudatus (Keyserling, 1891)
- species: Synotaxus monoceros (Caporiacco, 1947)
- species: Synotaxus siolii Santos & Rheims, 2005
- species: Synotaxus turbinatus Simon, 1895
- species: Synotaxus waiwai Agnarsson, 2003