Protoreaster nodosus
| Horned sea star | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Echinodermata | 
| Class: | Asteroidea | 
| Order: | Valvatida | 
| Family: | Oreasteridae | 
| Genus: | Protoreaster | 
| Species: | P. nodosus | 
| Binomial name | |
| Protoreaster nodosus | |
Protoreaster nodosus, commonly known as the horned sea star or chocolate chip sea star, is a species of sea star found in the warm, shallow waters of the Indo-Pacific region. They are sometimes seen in the marine aquarium trade or dried and sold as curios.