Type species: Retepora phoenicea Busk, 1854
This genus includes the species:
| Iodictyum acanthoides | Brown, 1952 | Tertiary | New Zealand |
| Iodictyum alatum | Powell, 1967 | Recent | New Zealand |
| Iodictyum atriarium | Hayward, 2004 | Recent | SW Pacific (Chuuk I., Solomon I.) |
| Iodictyum axillare | (Ortmann, 1889) | Recent | Japan |
| Iodictyum bicuspidatum | Gordon & d'Hondt, 1997 | Recent | New Caledonia |
| Iodictyum blandum | Gordon & d'Hondt, 1997 | Recent | New Caledonia |
| Iodictyum deliciosum | (Buchner, 1924) | Recent | Japan |
| Iodictyum flosculum | Hayward & Cook, 1983 | Recent | S. Africa |
| Iodictyum gibberosum | (Buchner, 1924) | Recent | Japan |
| Iodictyum hesperium | Hayward, 2004 | Recent | Rottnest, W.Australia |
| Iodictyum illinguum | Gordon & d'Hondt, 1997 | Recent | New Caledonia |
| Iodictyum labellatum | Zagorsek, 2001 | Tertiary (Eocene) | Hungary |
| Iodictyum laciniosum | Hayward, 2004 | Recent | Qld, Australia (GBR) |
| Iodictyum ligarense | Brown, 1952 | Tertiary | New Zealand |
| Iodictyum magniavicularis | Amui & Kaselowsky, 2006 | Recent | Gulf of Aden |
| Iodictyum mamillatum | Hayward & Ryland 1995 | Recent | Qld, Australia (GBR) |
| Iodictyum megapora | Guha & Gopikrishna, 2007 | Neogene Miocene Aquitanian | India Gujarat |
| Iodictyum ornithorhynchus | Hayward, 2004 | Recent | Qld, Australia (GBR) |
| Iodictyum perarmatum | Harmer, 1934 | Recent | Indonesia |
| Iodictyum phoeniceum | (Busk, 1854) | Recent | Australia |
| Iodictyum polycrenulatum | (Okada, 1923) | Recent | Japan, Indonesia |
| Iodictyum praesigne | d'Hondt, 1986 | Recent | New Caledonia |
| Iodictyum rubeschi | (Reuss, 1848) | Tertiary (Eoc.-Mio.) | Europe, Egypt |
| Iodictyum sanguineum | (Ortmann, 1890) | Recent | Japan, N. Australia |
| Iodictyum serratum | (MacGillivray, 1883) | Recent | SE Australia |
| Iodictyum shimodai | Okada, 1934 | Recent | Japan |
| Iodictyum spicatum | Harmer, 1934 | Recent | Australia (Torres Str.) |
| Iodictyum trochus | Gordon & d'Hondt, 1997 | Recent | New Caledonia |
| Iodictyum violaceum | Hayward, 2004 | Recent | New Caledonia |
| Iodictyum willeyi | Harmer, 1934 | Recent | Indonesia, Philippines, Australia |
| Iodictyum willeyi caledoniense | d'Hondt, 1986 | Recent | New Caledonia |
| Iodictyum yaldwyni | Powell, 1967 | Recent | New Zealand |
Harmer notebook - entry for Iodictyum
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| Iodictyum magniavicularis (Thanks to Ann-Marget Amui) |
Iodictyum phoeniceum | Iodictyum phoeniceum: colour photograph by Karen Gowlett-Holmes. |
Iodictyum willeyi |