Notomastus luridus
- kingdom: Animalia
- phylum: Annelida
- class: Polychaeta
- order:
- family: Capitellidae
- genus: Notomastus
- species: Notomastus luridus
Chacarita
Puntarenas
Costa Rica
West Haven
Connecticut- Centerville
- Provincetown
Massachusetts
United States