Aporocidaris incerta

Aporocidaris incerta is a species of sea urchin of the family Ctenocidaridae. It is placed in the genus Aporocidaris and lives in the deep sea. Aporocidaris incerta was first scientifically described in 1902 by Koehler. This species lives around the Antarctic continent at depths down to about 300 m.

Description
Aporocidaris incerta has a compressed test, the height of which is less than half its diameter, which is a maximum of 30 mm. The primary spines are as long as the test is wide. When preserved, this species is dark brown.