- family: Oonopidae
- genus: Opopaea
- species: Opopaea ambigua Simon, 1893
- species: Opopaea atlantica (Benoit, 1977)
- species: Opopaea bandina Chickering, 1969
- species: Opopaea banksi (Hickman, 1950)
- species: Opopaea batanguena Barrion & Litsinger, 1995
- species: Opopaea berlandi (Simon & Fage, 1922)
- species: Opopaea calona Chickering, 1969
- species: Opopaea concolor (Blackwall, 1859)
- species: Opopaea cornuta Yin & Wang, 1984
- species: Opopaea cupida (Keyserling, 1881)
- species: Opopaea deserticola Simon, 1891
- species: Opopaea devia Gertsch, 1936
- species: Opopaea euphorbicola Strand, 1909
- species: Opopaea floridana (Banks, 1896)
- species: Opopaea fosuma Burger, Nentwig & Kropf, 2002
- species: Opopaea foveolata Roewer, 1963
- species: Opopaea guaraniana Birabén, 1954
- species: Opopaea hoplites (Berland, 1914)
- species: Opopaea ita Ott, 2003
- species: Opopaea kulczynskii (Berland, 1914)
- species: Opopaea lena Suman, 1965
- species: Opopaea lingua Saaristo, 2007
- species: Opopaea mattica Simon, 1893
- species: Opopaea media Song & Xu, 1984
- species: Opopaea meditata Gertsch & Davis, 1936
- species: Opopaea nibasa Saaristo & van Harten, 2006
- species: Opopaea plumula Yin & Wang, 1984
- species: Opopaea probosciella Saaristo, 2001
- species: Opopaea punctata (O. P.-Cambridge, 1872)
- species: Opopaea recondita Chickering, 1951
- species: Opopaea sallami Saaristo & van Harten, 2006
- species: Opopaea sanaa Saaristo & van Harten, 2006
- species: Opopaea santschii Brignoli, 1974
- species: Opopaea sauteri Brignoli, 1974
- species: Opopaea sedata Gertsch & Mulaik, 1940
- species: Opopaea shanasi Saaristo, 2007
- species: Opopaea silhouettei (Benoit, 1979)
- species: Opopaea simoni (Berland, 1914)
- species: Opopaea speciosa (Lawrence, 1952)
- species: Opopaea spinosa Saaristo & van Harten, 2006
- species: Opopaea sponsa Brignoli, 1978
- species: Opopaea suspecta Saaristo, 2002
- species: Opopaea syarakui (Komatsu, 1967)
- species: Opopaea timida Chickering, 1951
- species: Opopaea viamao Ott, 2003