Opal worm
- kingdom: Animalia
- phylum: Annelida
- class: Polychaeta
- order: Eunicida
- family: Oenonidae
- genus: Arabella
- species: Arabella iricolor
Falmouth
Saint Paul
Antigua And Barbuda
As Sālimīyah
Hawalli
Kuwait
Mahonda
South
Zanzibar Central
Tanzania
Branford- Branford Center
- New Haven
Connecticut- Harwich Port
- Provincetown
- Vineyard Haven
Massachusetts- Newport
Rhode Island
United States