Short, J. W. and Davie, P. J. F., 1993. Two new species of freshwater crayfish (Crustacea: Decapoda: Parastacidae) from northeastern Queensland rainforest.

Two new species of freshwater crayfish, Cherax parvus, and Euastacus yigara, are described and illustrated from the upper Tully R. catchment in simple notophyll vine forest, on the Cardwell Ra. Cherax parvus sp. nov. has several morphological features unique to the genus and does not appear closely related to any extant species, suggesting a long period of geographic isolation. Euastacus yigara sp. nov. most closely resembles E. balanensis Morgan, 1988, known from the nearby Lamb and Bellenden Ker Ranges, and can be distinguished by the morphology of the first chelipeds and carapace. Keys are provided to Queensland species of Cherax and Euastacus.