Note:

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: Asterozoa
Class: Stelleroidea Lamarck, 1816 - star fishes
Subclass: Asteroidea - starfishes
Order: Valvatida
Family: Ophidiasteridae
Genus: Hacelia (Gray, 1840)
Specific name: attenuata (Gray, 1840)
Scientific name: Hacelia attenuata (Gray, 1840)