(A. Agassiz, 1869)
Abyssal Sea Urchin
Class
Echinoidea
Order
Cidaroida
Family
Cidaridae
Goniocidaris impressa
Eucidaris metularia
Ten-Lined Urchin
Stereocidaris alcocki
Acanthocidaris hastigera
Eucidaris tribuloides
Slate Pencil Urchin
Acanthocidaris curvatispinis
Calocidaris micans
Cidaris blakei
