Galactosomum Looss, 1899

Galactosomum baylisi (Gohar, 1930)

Galactosomum cochleariforme (Rudolphi, 1819)

Galactosomum dollfusi Pearson, 1973

Galactosomum erinaceum (Poirier, 1886)

Galactosomum humbargari

Galactosomum lacteum (Jägerskiöld, 1896)

Galactosomum phalacrocoracis Yamaguti, 1939

Galactosomum puffini Yamaguti, 1941

Galactosomum sanaensis

Galactosomum semifuscum (Olsson, 1876)

Galactosomum spinetum

Galactosomum stelleri Dailey, Demaree & Critchfield, 2002