| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Sycon acanthoxea (Little, 1963) |
Western Central Atlantic | ||
| Sycon arcticum (Haeckel, 1870) |
Arctic and Western Central Atlantic | ||
| Sycon ciliatum (Fabricius, 1780) |
Ciliated calcareous sponge | Northern Atlantic | |
| Sycon gelatinosum (Blainville, 1834) |
Indo-West Pacific | ||
| Sycon huinayense Azevedo, Hajdu, Willenz & Klautau, 2009 |
Huinay's cactus sponge | Southeast Pacific | |
| Sycon kerguelense Urban, 1908 |
Antarctic Indian Ocean | ||
| Sycon plumosum Tanita, 1943 |
Western Central Pacific | ||
| Sycon protectum Lambe, 1896 |
Protected calcareous sponge | Northwest Atlantic and Northern Pacific | |
| Sycon quadrangulatum (Schmidt, 1868) |
Eastern Atlantic | ||
| Sycon raphanus Schmidt, 1862 |
Western Pacific | ||
| Sycon stauriferum (Preiwisch, 1904) |
Eastern Central Pacific |