Note:

Vive insabbiato, ma occasionalmente si rinvengono gli oblunghi scheletri.

Tassonomia:

Domain: Eukaryota Whittaker & Margulis,1978 - eukaryotes
Kingdom: Animalia Linnaeus, 1758 - linnaeus, 1758 - animals
Subkingdom: Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - (hatschek, 1888) cavalier-smith, 1983 - bilaterians
Branch: Deuterostomia Grobben, 1908 - deuterostomes
Infrakingdom: Coelomopora (Marcus, 1958) Cavalier-Smith, 1998
Phylum: Echinodermata Klein, 1734 ex De Brugière, 1789 - echinoderms
Subphylum: Echinozoa
Class: Echinoidea (ek-in-OY-dee-a) - sea urchins and sand dollars
Subclass: Euechinoidea
Superorder: Atelostomata - irregular urchins
Order: Spatangoida
Suborder: Amphisternata
Family: Brissidae
Genus: Brissus (Leske, 1778)
Specific name: unicolor
Scientific name: Brissus unicolor (Leske, 1778)