Orange Spine Urchin Tripneustes gratilla

Orange Spine Urchin
Orange Spine Urchin
Orange Spine Urchin
The Orange Spine Urchin is sometimes called Collector Urchin as debris tends to collect on them (or they collect it for camouflage). It has a dark body colour with orange and white spines.
Collector Urchin
Orange Spine Urchin
It is native to the Indo-Pacific Oceans and grows to 10-15cm round. They graze day and night on seagrass and algae.