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Avery, L. and Austin, CM., 1997. A biochemical taxonomic study of spiny crayfish of the genera Astacopsis and Euastacus (Decapoda : Parastacidae) in south-eastern Australia. Memoirs of the Museum of Victoria 56(2): 543-555. A study of allozyme variation amongst spiny crayfish species of the genera Astacopsis (Huxley) and Euastacus Clark in south-eastern Australia was carried out to evaluate the current morphologically-based taxonomy. Nineteen populations representing ten putative species were analysed for variation at 32 allozyme loci. Heterozygosities were found to be low and typical for parastacid crayfishes. Significant geographical variation in allelic fre- quencies was found only in E. yarraensis. Analysis of genetic relationships amongst samples provided unambiguous support for the recognition for five Euastacus species (E. armatus, E. kershawi, E. diversus, E. neodiversus and E. woiwuru)andtwospeciesofAstacopsis(A. gouldi and A. franklinii). Support for the recognition of A. tricomis is equivocal as a sample of this species displayed a relatively low level of allozymic divergence from a sample of A. frank linii. Samples of E. yarraensis and E. bispinosus could not be distinguished from E.armatus indicating the need for more detailed taxonomic studies of this complex of species.
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Avery et al. (1997) studied this question.
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