Marine worm
- kingdom: Animalia
- phylum: Sipuncula
- class: Sipunculidea
- order: Sipunculiformes
- family: Sipunculidae
- genus: Sipunculus
- species: Sipunculus nudus
Dangriga
Stann Creek
Belize
Ilhabela
São Paulo
Brazil
El Porvenir
Guna Yala
Panama
Monterey- Pacific Grove
California- Key West
Florida
United States