Brittle shell up to 4cm in length. It is light yellow in colour with red or purple streaks of zig-zags. Juveniles may be almost completely red. The inside is pearl white. Sculpture?
- Light yellow shell with red rays or streaks
- The periostracum is smooth; it does not possess spines
- Modiolus barbatus has serrated spines on the periostracum
Lives within a byssal net on gravel or sandy mud where it filter feeds.
Distributed from the Baltic Sea to the Iberian Peninsula and into the Mediterranean and Black Seas