Xouthous Thomson, 1882

Idomene aemula (Thompson I.C. & Scott A., 1903)

Idomene laticauda (Thompson I.C. & Scott A., 1903)

Idomene peresi Bodin, 1964

Idomene rostrata (Scott T., 1893)

Xouthous aemula (Thompson I.C. & Scott A., 1903)

Xouthous antarctica (Giesbrecht, 1902)

Xouthous australis (Brady, 1910)

Xouthous borealis (Sars G.O., 1911)

Xouthous cookensis (Pallares, 1975)

Xouthous coronatus (T. Scott, 1894)

Xouthous ferrieri (T. Scott, 1912)

Xouthous intermedia (Lang, 1934)

Xouthous laticaudatus (Thompson I.C. & Scott A., 1903)

Xouthous maldiviae Sewell, 1940

Xouthous novaezealandiae Thomson G.M., 1883

Xouthous pectinatus (Scott, T. & Scott, A., 1898)

Xouthous purpurocinctus (Norman & Scott T., 1906)

Xouthous pusillus (Brady, 1910)

Xouthous sarsi Huys, 2010

Xouthous scotti (Lang, 1948)