Tuvalu – 2011 – 1 Dollar – Coral Protection DENDROGYRA CILINDRICUS (PROOF)


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Face Value Metal Fineness Weight Diameter Quality Mintage
1 Dollar Silver .999 1/2 oz 435mm PROOF 1000

Issue date March 2011

Pillar corals (Dendrogyra cylindricus) are a type of hard coral which live in the western Atlantic Ocean. They are one of the digitate corals which resemble fingers, or a cluster of cigars, growing up from the sea floor, but without any secondary branching.

Pillar corals can grow to be up to 2.5 m (8 ft) tall. They can grow on both flat and sloping sea floors at a depth of between 1 and 20 m (65 ft). They are one of the few types of hard coral whose polyps can commonly be seen feeding during the day.