Astropyga
Astropyga is a genus of sea urchins of the family Diadematidae. Their armour is covered with spines. Astropyga was first scientifically described in 1855 by John Edward Gray.
Species
According to World Register of Marine Species:| Image | Scientific name | Distribution |
| Astropyga magnifica | Florida, U.S.A; Caribbean | |
| Astropyga nuptialis | San Pablo, Brazil | |
| Astropyga pulvinata | Eastern Pacific and Western Central Atlantic. | |
| Astropyga radiata | tropical Indo-Pacific region. |