Sabellastarte spectabilis is a species of benthic marine polychaete worm in the Sabellidae family. It is commonly known as the feather duster worm, feather duster or fan worm. It is native to tropical waters of the Indo-Pacific but has spread to other parts of the world.

Sabellastarte spectabilis is a large tubicolous worm with two-lobed food gathering gills, forming a circular disc when expanded. The branched tentacles (radioles) lack small, finger-like projections on the tentacles (stylodes). The species inhabits leathery tubes covered with fine mud.

Sabellastarte spectabilis is commonly known as the feather duster worm, feather duster or fan worm. It has reported for the first time from Iranian waters (Kish Island) and finding in the intertidal and subtidal reefs. Especially common in sites where phytoplankton is abundant.

Sabellastarte spectabilis (Grube, 1878) Featherduster worm, Fan worm Phylum Annelida Class Polychaeta Family Sabellidae DESCRIPTION This large species attains 80 mm or more in length and 10 to 12 mm in width. The entire body of the worm is buff colored with flecks of purple pigment. These worms inhabit tough, leathery tubes covered with fine mud.