Deepest sea urchin

Last updated: October 4, 2017 at 2:07 am

7,250 m (23,786 ft) – Class Echinoidea (unknown species), Indonesia, 1951.

Posudin, Y. (2014) Measurement of Water Quality Parameters, in Methods of Measuring Environmental Parameters, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118914236.ch20

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