A beautiful feather duster worm, Bispira sp., grows on a coral reef in Alor, Indonesia.

Detail of a feather duster worm growing on a coral reef near Alor in the Lesser Sunda Islands of Indonesia.

Detail of the spiral tentacles arrangement of a feather duster worm (Bispira sp.) in Komodo National Park, Indonesia.

Radioles extending from the branchial stalk of a Spirographis feather duster worm, in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia

Radioles extending from the branchial stalk of a Spirographis feather duster worm, in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK Restricted resolution (Please contact us). (RR)

Tubeworm, Sabellastarte sp., Monkey beach, Puerto Galera, Mindoro, Philippines

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK (RR)

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK (A4 only).

Split-crown feather duster worm (anamobea orstedii).

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK (RR)

Feather Duster Worm (Species unknown) Babbacombe, Torquay, South Devon, UK