| Sclerosomatidae Simon, 1879 (Family) |
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| Sclerosomatidae subfam. Sclerosomatinae Simon, 1879 (Subfamily) |
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| Protolophus Banks, 1893 (Genus) |
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| Protolophus cockerelli C.J.Goodnight & M.L.Goodnight, 1942 (Species) |
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| Protolophus differens C.J.Goodnight & M.L.Goodnight, 1942 (Species) |
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| Protolophus dixiensis Chamberlin, 1925 (Species) |
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| Protolophus longipes Schenkel, 1951 (Species) |
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| Protolophus niger C.J.Goodnight & M.L.Goodnight, 1942 (Species) |
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| Protolophus rossi C.J.Goodnight & M.L.Goodnight, 1943 (Species) |
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| Protolophus singularis Banks, 1893 (Species) |
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| Protolophus tuberculatus Banks, 1893 (Species) |
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