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Two new species of Euastacus (Decapoda: Parastacidae) from the Gondwana Rainforests of central eastern Australia
Furse JM, Dawkins KL and Coughran J 
Published Online: 2/15/2013
Abstract
Two new species of the crayfish genus Euastacus are described from the Gondwana Rainforests on the Queensland – New South Wales border region of Australia, Euastacus binzayedi sp. n. and Euastacus angustus sp. n. These two small, poorly spinose species are broadly similar in appearance and colouration to Euastacus dalagarbe Coughran, from the same region. Both species can be readily distinguished from E. dalagarbe; Euastacus binzayedi sp. n. by the numerous bumps and protrusions on the dorsal and ventral surfaces of its chelae, and Euastacus angustus sp. n. by its unusual, laterally compressed body shape, and the large ventromesial carpal spine. Cytochrome oxidase I divergence estimates from the most closely related species were high for both Euastacus binzayedi sp. n. (4.8%), and Euastacus angustus sp. n. (8.7%). Morphologically, both of these new species belong in a clearly defined, poorly spinose grouping, and both appear to be exceptionally rare, each known from a single locality.
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How to Cite
Furse JM, Dawkins KL and Coughran J. (2013). Two new species of Euastacus (Decapoda: Parastacidae) from the Gondwana Rainforests of central eastern Australia. Freshwater Crayfish 19(1):103-113. doi: 10.5869/fc.2013.v19.103
Author Information
Jason Coughran, Environmental Futures Centre and Griffith School of Environment, Griffith University and Outback Ecology, Gold Coast campus, Griffith University, Queensland, Australia4222. E-mail: j.coughran@griffith.edu.au
Kathryn L. Dawkins, Australian Rivers Institute and Griffith School of Environment, Griffith University, Gold Coast campus, Griffith University, Queensland, Australia4222. E-mail: k.dawkins@griffith.edu.au
James M. Furse,* Environmental Futures Centre and Griffith School of Environment, Griffith University , Gold Coast campus, Griffith University, Queensland, Australia.4222. E-mail: j.furse@griffith.edu.au
Corresponding Author indicated by an *.
Publication History
Manuscript Submitted: 6/13/2012
Manuscript Accepted: 10/27/2012
Published Online: 2/15/2013
Published in Print: 2/15/2013
Funding Information
No specific funding statement is available for this article.