Ophiocoma erinaceus is an echinoderm, more specifically a brittle star of the Ophiocomidae family.

[1] Ophiocoma erinaceus is black with red tube feet.

[3] In Hawaii, it is the largest brittle star, with sizes of the arms going up to 5 ½ inches, and the disk can be about 1 inch in diameter.

[1] Ophiocoma erinaceus is distributed within the Indo-Pacific oceans and can be found under rocks and stones.

[4] It has been observed that the saponin extracted from Ophiocoma erinaceus can decrease and inhibit the growth of HeLa human cervix cancer cells.