Reef-building polychaete worm
- kingdom: Animalia
- phylum: Annelida
- class: Polychaeta
- order: Sabellida
- family: Sabellariidae
- genus: Phragmatopoma
- species: Phragmatopoma caudata
Torres
Rio Grande do Sul- Praia Grande
São Paulo
Brazil- United States
Bal Harbour