Child nodes | - taxid:865929 Deltocyathus magnificus (species), Deltocyathus magnificus Moseley, 1876 (authority).
- taxid:865931 Deltocyathus rotulus (species), Deltocyathus rotulus (Alcock, 1898) (authority).
- taxid:865936 Deltocyathus inusitatus (species), Deltocyathus inusitatus Kitahara & Cairns, 2009 (authority).
- taxid:865930 Deltocyathus ornatus (species), Deltocyathus ornatus Gardiner, 1899 (authority).
- taxid:1242804 Deltocyathus corrugatus (species), Deltocyathus corrugatus Cairns, 1999 (authority).
- taxid:1242805 Deltocyathus vaughani (species), Deltocyathus vaughani Yabe & Eguchi, 1932 (authority).
- taxid:865933 Deltocyathus suluensis (species), Deltocyathus suluensis Alcock, 1902 (authority).
- taxid:865932 Deltocyathus sarsi (species), Deltocyathus sarsi (Gardiner & Waugh, 1938) (authority).
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