Hydatina amplustre (Linnaeus, 1758)

Hydatina amplustre lives on intertidal and shallow subtidal lagoon reefs in the Marshalls. The best area is in some man-made reef quarries that range in depth from a few centimeters to about 3 meters. They are usually seen at night, when they emerge from their hiding places under the sand. The very small young specimen below was found in a thin layer of sand over hard reef on the seaward reef at a depth of about 8m.

Created 22 January 2007
Updated 30 March 2012

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