Signal crayfish Pacifastacus leniusculus
![Image of Pacifastacus Bott 1950](https://content.eol.org/data/media/56/91/3c/509.dd953347203e07207186be49e958ea80.580x360.jpg)
Description:
Description: English: male signal crayfish (Pacifastacus leniusculus) Deutsch: Signalkrebs-Männchen (Pacifastacus leniusculus). Date: 2 April 2011. Source: Own work. Author: Astacoides.
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- Life (creatures)
- Cellular (cellular organisms)
- Eukaryota (eukaryotes)
- Opisthokonta (opisthokonts)
- Metazoa (Animal)
- Bilateria
- Protostomia (protostomes)
- Ecdysozoa (ecdysozoans)
- Arthropoda (arthropods)
- Pancrustacea
- Multicrustacea (typical crustaceans)
- Malacostraca (malacostracans)
- Eumalacostraca
- Eucarida
- Decapoda (decapods)
- Pleocyemata (pleocyematans)
- Astacidea (Crayfishes and Lobsters)
- Astacoidea (Crayfishes)
- Astacidae (freshwater crayfishes)
- Pacifastacus
- Pacifastacus leniusculus (Columbia River Signal Crayfish)
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