Long-Spined Urchin
Long-Spined Urchin, Juvenile
| Name: | Long-Spined Urchin |
| Scientific Name: | Diadema antillarum |
| Family: | Sea Urchins |
| Taxonomic: | Diadematidae |
| ID Group: | Sea Stars, Urchins, Cucumbers |
| Size: | up to 8 in. |
| Depth Range: | In shallow waters (0 – 15 ft.) |
| Sightings: | Seen often |
This Urchin is covered with very long, thin, sharp spines. Its body is black, and the spines of juveniles sometimes display white bands.
The Long-Spined Urchin hides during the day and comes out at night to forage. It is often seen in groups on or beneath rocky surfaces.