Halecium antarcticum Vanhöffen, 1910
Halecium banzare Watson, 2008
Halecium brevithecum Watson, 2008
Halecium delicatulum Coughtrey, 1876
Halecium elegantulum Watson, 2008
Halecium flexile Allman, 1888 accepted as Halecium delicatulum Coughtrey, 1876
Halecium gracile Bale, 1893 accepted as Halecium delicatulum Coughtrey, 1876
Halecium incertus Naumov & Stepanjants, 1962
Halecium interpolatum Ritchie, 1907
Halecium macrocaulus Watson, 2008
Halecium mediterraneum Weismann, 1883
Halecium ovatum Totton, 1930
Halecium pallens Jäderholm, 1904
Halecium secundum Jäderholm, 1904
Halecium tenellum Hincks, 1861
Halecium tubatum Watson, 2008
Ophiodissa arborea (Allman, 1888) accepted as Hydrodendron arboreum (Allman, 1888)