Signal crayfish, Pacifastacus leniusculus, a non-native invasive species (© Tom Hesseldenz).
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Signal crayfish, Pacifastacus leniusculus, a non-native invasive species (© Tom Hesseldenz).
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Signal crayfish, Pacifastacus leniusculus, a non-native invasive species (© Tom Hesseldenz). Return To Previous Page
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