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The overall aim of this thesis was to investigate the morphological and molecular diversity within Tenuibranchiurus, and to utilise these data to further the understanding of the evolution of this freshwater crayfish and the other genera of the Australian burrowing clade from both a phylogenetic and biogeographic perspective. The genus Tenuibranchiurus occurs within coastal eastern Australia and currently represents the largest gap in knowledge within this clade of crayfish. It is also the only monotypic parastacid genus, containing the single species T. glypticus. Additionally, it has morphological, phylogenetic, and geographical attributes that are not exhibited by other members of the burrowing clade, or by other freshwater fauna found throughout its distributional range. Examination and clarification of these unique features has the potential to elucidate evolutionary processes determining the distribution and genetic structure of the genus, the burrowing clade, and the freshwater fauna of coastal eastern Australia. |
