Chthamalus bisinuatus
- kingdom: Animalia
- phylum: Arthropoda
- class: Maxillopoda
- order: Sessilia
- family: Chthamalidae
- genus: Chthamalus
- species: Chthamalus bisinuatus
Praia Grande
São Paulo
Brazil
Punta del Este
Maldonado
Uruguay