Euastacus crassus
Euastacus crassus is a species of southern crayfish in the family Parastacidae. It is commonly known as the Alpine spiny crayfish. The IUCN conservation status of Euastacus crassus is "EN", endangered. The species faces a high risk of extinction in the near future. The IUCN status was reviewed in 2010. References

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Euastacus
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Crustaceans described in 1951