Rockwall clingfish
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Gobiesociformes
- family: Gobiesocidae
- genus: Arcos
- species: Arcos erythrops
Cabo San Lucas
Baja California Sur- San Patricio
Jalisco- Topolobampo
Sinaloa
Mexico