Ophiothrix
Animalia | Echinodermata | Ophiuroidea | Ophiurida | Ophiotrichidae | Ophiothrix | Ophiothrix suensoni
Ophiocytium
Biota | Chromista | Harosa | Heterokonta | Ochrophyta | Xanthophyceae | Mischococcales | Sciadiaceae | Ophiocytium
|  |  |  | Cavalier-Smith, 1995 | Allorge ex Fritsch, 1935 | F.E.Fritsch, 1927 | Gobi, 1887 | Nägeli, 1849