- family: Thomisidae
- genus: Firmicus
- species: Firmicus abnormis (Lessert, 1923)
- species: Firmicus arushae Caporiacco, 1947
- species: Firmicus aurantipes Jézéquel, 1966
- species: Firmicus biguttatus Caporiacco, 1940
- species: Firmicus bimaculatus (Simon, 1886)
- species: Firmicus bipunctatus Caporiacco, 1941
- species: Firmicus bivittatus Simon, 1895
- species: Firmicus bragantinus (Brito Capello, 1866)
- species: Firmicus campestratus Simon, 1907
- species: Firmicus campestratus faradjensis (Lessert, 1928)
- species: Firmicus campestratus ogoueensis Simon, 1907
- species: Firmicus dewitzi Simon, 1899
- species: Firmicus duriusculus Simon, 1903
- species: Firmicus haywoodae Jézéquel, 1964
- species: Firmicus insularis (Blackwall, 1877)
- species: Firmicus lentiginosus (Simon, 1886)
- species: Firmicus paecilipes Caporiacco, 1940
- species: Firmicus strandi Caporiacco, 1947
- species: Firmicus werneri Simon, 1906