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2 Dollars - Elizabeth II Kunimasu
| Issuer | Cook Islands |
|---|---|
| Year | 2018 |
| Type | Non-circulating coin |
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|---|---|
| Obverse script | Latin |
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| Reverse lettering | JAPAN ENDANGERED SPECIES KUNIMASU .999 |
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| Additional information |
The kunimasu, a black-colored trout native to Lake Tazawa in Akita Prefecture, Japan, was declared extinct in 1940 after the lake was acidified by diverted river water powering a hydroelectric project. Its rediscovery in 2010 — in Lake Saiko at the base of Mount Fuji, where eggs had been transplanted in the 1930s — was announced by ichthyologist Tetsuji Nakabo and quickly became a significant moment in Japanese conservation biology. This coin was issued eight years after that rediscovery.