''Ircinia spiculosa'' is a marine sponge species in the genus '' Ircinia''.

Tryptophol Tryptophol is an aromatic alcohol that induces sleep in humans. It is found in wine as a secondary product of ethanol fermentation. It was first described by Felix Ehrlich in 1912. It is also produced by the trypanosomal parasite in sleeping sic ...

, a plant auxin, can also be isolated from the marine sponge ''I. spinulosa''.

References

Dictyoceratida Sponges described in 1912 {{Demosponge-stub