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Definition of Genus Astacus
1. Noun. Type genus of the family Astacidae; Old World crayfish.
Exact synonyms: Astacus
Generic synonyms: Arthropod Genus
Group relationships: Astacidae, Astacura, Family Astacidae
Member holonyms: Ecrevisse, Old World Crayfish
Generic synonyms: Arthropod Genus
Group relationships: Astacidae, Astacura, Family Astacidae
Member holonyms: Ecrevisse, Old World Crayfish