Bermejuela
Achondrostoma arcasii
- Vulnerable
- Card rarity: Rare
- Fish

Achondrostoma arcasii, termed the bermejuela, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces. Eurasian minnows and related fishes. This species is endemic to the northern Iberian Peninsula.
Classification
- Class
- Actinopterygii
- Order
- Cypriniformes
- Family
- Leuciscidae
- Genus
- Achondrostoma