Euryalidae

Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Ophiuroidea
Ordo: Phrynophiurida
Subordo: Euryalina
Familia: Euryalidae
Genera: Euryale - Trichaster