Arbacia
| Arbacia Temporal range:  | |
|---|---|
| Arbacia lixula | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Echinodermata | 
| Class: | Echinoidea | 
| Order: | Arbacioida | 
| Family: | Arbaciidae | 
| Genus: | Arbacia Gray, 1835 | 
Arbacia is a genus of sea urchins, widespread in the Atlantic and eastern Pacific oceans.