White body color with fuzzy spines, it moved very actively but some time live under the sandy area by buried their body. They can be exist in bid group spreading in the sandy area.The clor can also be variable.

On of most common and variable species. Have white and reddish spines that have separate area of pedicellaria which are variable in width. The bas color can be black or greenish with white and orange spine. Found in shallow water. Size up to 15 cm

This species is look very beautiful but it should not touch in bare hand because it extremely venomous and can caused fatalities. The flower is like disc shape called pedicellariae. They able to bite to skin a venom is injected, the pedicellariae can cost hazardous and tender skin most vulnerable. The spine are short and inconspicuous.

Can be identified by the radian lines of luminous blue dots on red base. Some time can be bright orange mix with red color but mostly they have dark color. It is not venomous the ball shape on the top is requires as the anus of the sea urchin. Mostly found at sandy area also can be a host for some crustacean and small fish.

This species is have colorful body in big size and it’s venomous spines cost burning sting. Intense pain can last about 15 minute to several hours after penetration of the spines into the skin But the sting doesn’t left mark on skin. It is fast moving species and difficult to find but usually they are at 20 m until 40 m in day time but in night they move to the shallow part. They mostly became a host for some crustacean.

It has two kind of spines the white one are more think and dark color is more small and thin. The anal sac have white spots. Found under coral heads and coral rubble in shallow reef habitats. Also can cost painful puncture wounds.

This species have elongate white and black spines. The anal sac is dark color with light ring around the opening and bright blue pigment also found on the aboral surface. Mostly found on shallow water