Common name: Reef Urchins

Camarodonta is an order of sea urchins commonly found in reef environments. Members of this order, such as the popular tuxedo urchin, are known for their herbivorous diet, feeding on algae and helping to control algae growth in aquariums. They are characterized by their robust, often colorful spines and a globular shape. Hobbyists appreciate them for their utility in maintaining clean rocks and glass, but care should be taken to ensure they have enough food and are not damaging more delicate corals.

1. 
   Common name: rock-boring urchin

   Scientific name: Echinometra lucunter
2. 
   Common name: Rock Boring Urchin

   Scientific name: Echinometra mathaei
3. 
   Common name: Green Urchin

   Scientific name: Echinometra viridis
4. 
   Common name: Urchin Spine Snail

   Scientific name: Echinostrephus aciculatus
5. Common name: Burrowing fine spine urchin

   Scientific name: Echinostrephus molaris
6. 
   Common name: common sea urchin

   Scientific name: Echinus esculentus
7. 
   Common name: Pineapple Sea Urchin

   Scientific name: Echinus melo
8. 
   Common name: slate pencil urchin

   Scientific name: Heterocentrotus mamillatus
9. 
   Common name: variegated urchin

   Scientific name: Lytechinus variegatus
10. 
    Common name: Red Sea Urchin

    Scientific name: Mesocentrotus franciscanus
11. 
    Common name: blue tuxedo urchin

    Scientific name: Mespilia globulus
12. Common name: Bald-patch urchin

    Scientific name: Microcyphus rousseaui
13. 
    Common name: Purple sea urchin

    Scientific name: Paracentrotus lividus
14. 
    Common name: Green Sea Urchin

    Scientific name: Psammechinus microtuberculatus
15. Common name: Indiana Urchin

    Scientific name: Pseudoboletia indiana
16. 
    Common name: Spotted Sea Urchin

    Scientific name: Pseudoboletia maculata
17. Common name: Dussumier's Dartfish

    Scientific name: Salmaciella dussumieri
18. Common name: Salmacis Belli

    Scientific name: Salmacis belli
19. 
    Common name: Urchin Banded Shrimp

    Scientific name: Salmacis sphaeroides
20. 
    Common name: violet sea urchin

    Scientific name: Sphaerechinus granularis
21. 
    Common name: Purple sea urchin

    Scientific name: Strongylocentrotus purpuratus
22. 
    Common name: Flower Urchin

    Scientific name: Toxopneustes pileolus
23. 
    Common name: collector urchin

    Scientific name: Tripneustes gratilla
24. 
    Common name: sea egg

    Scientific name: Tripneustes ventricosus