Ectinosomatidae Sars, 1903
Sigmatidium arenosetelloides Noodt, 1958
Sigmatidium chappuisi Schäfer, 1951
Sigmatidium difficile Giesbrecht, 1881
Sigmatidium kunzi Mielke, 1979
Sigmatidium minor (Kunz, 1935)
Sigmatidium noodti Noodt, 1974
Sigmatidium parvulum Mielke, 1974
Sigmatidium problematicum Rouch, 1962
Sigmatidium rouchi Kunz, 1975
Sigmatidium triarticulatum Mielke, 1979
