The Collaborative International Dictionary of English v.0.48:
Astacura \Astacura\ n. 1. the family including the crayfish. Syn: Astacidae, family Astacidae. [WordNet 1.5]WordNet (r) 3.0 (2006):
Astacura n 1: crayfish [syn: Astacidae, family Astacidae, Astacura]