Taxonavigation

Taxonavigation: Arbacioida 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Echinacea
Ordo: Arbacioida

Familia: Arbaciidae
Genus: Arbacia
Species: Arbacia crassispina

Distribution

Known only from the South Atlantic island of Tristan da Cunha.

Synonyms

Its possible synonymy with Arbacia dufresnei is not clear.

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