The Thick-Clawed Crayfish, Astacus pachypus (Crustacea, Decapoda, Astacidae), in Ukraine: Karyotype, Allozymes and Morphological Parameters - S. V. Mezhzherin; V. S. Kostyuk; A. V. Garbar; E. I. Zhalai; P. S. Kutishchev (Zoodiversity, 2015)