Common name: Long-spined sea urchin

Centrostephanus is a genus of sea urchins commonly known as the long-spined sea urchin, often confused with the similar-looking Diadema genus. Members of this genus are characterized by their long, sharp spines that can inflict painful wounds. They are important herbivores on the reef, controlling algal growth. In the aquarium, they require ample rockwork to graze on and hide among, and should be handled with care due to their spines. They are sensitive to water quality and require stable conditions.

1. 
   Common name: long-spined urchin

   Scientific name: Centrostephanus longispinus
2. 
   Common name: Long-spined Sea Urchin

   Scientific name: Centrostephanus rodgersii