Summary ²

The collector urchin (Tripneustes gratilla) is a species of sea urchin. Collector urchins are found at depths of 2 to 30 metres (7 to 100 ft) in the waters of the Indo-Pacific, Hawaii, and the Red Sea. They can reach 10 to 15 centimetres (4 to 6 in) in size.

Sources and Credits

1. (c) DavidR.808, some rights reserved (CC BY-NC), uploaded by DavidR.808, https://picasaweb.google.com/104623964081378888743/20111225YO257#5690268646931846114
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Tripneustes_gratilla

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