Atlantic rubyfish
Erythrocles monodi
- Least concern
- Card rarity: Common
- Fish

The Atlantic rubyfish, also known as the crimson rover, is a species of marine ray-finned fish belonging to the family Emmelichthyidae, the rovers, bonnetmouths and rubyfishes. This fish is found in the eastern and western central Atlantic Ocean.
Classification
- Class
- Actinopterygii
- Order
- Acanthuriformes
- Family
- Emmelichthyidae
- Genus
- Erythrocles