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Euastacus hystricosus Riek 1951

Keith A. Crandall
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Containing group: Euastacus


The holotype and allotype of E. hystricosus have been lost from the Queensland Museum (fide Riek, 1969:896) and could not be found for this study. Riek (1956: 1-2; 1969:896) named lectotypes (including a "holotype", "allotype", and "paratypes") from Elaman Creek, Maleny (AM P13044). This move was invalid as lectotypes can be designated only from a series of syntypes. A single neotype may be nominated if the type series is lost but "only in exceptional circumstances where a neotype is necessary in the interests of stability of nomenclature" (International Code of Zoological Nomenclature, Art. 75a). It is here regarded that a neotype need not be designated for E. hystricosus.

Distribution and Habitat

The species inhabits streams in wet sclerophyll and rainforests at elevations above 550 m a.s.l. in the Conondale Range and Maleny areas west of Nambour, south-east Queensland. The species occurs in the Mary River system and was recently also collected from a tributary of the Brisbane River.

Conservation Status

Category: VU (Vulnerable)
Criteria: B1+2c
Conservation Links:


Baillie, Jonathan, and Brian Groombridge. 1996. IUCN Red List of Threatened Animals.

Crandall, Keith A., James W. Fetzner, Jr., Carlos G. Jara, and Ludwig Buckup. 2000. On the Phylogenetic Positioning of the South American Freshwater Crayfish Genera (Decapoda: Parastacidae). Journal of Crustacean Biology, 20(3): 530-540.

Morgan, G. J. 1988. Freshwater crayfish of the genus Euastacus Clark (Decapoda: Parastacidae) from Queensland. Memoirs of the Museum of Victoria, 49: 1-49.

Riek, E. F. 1951. The freshwater Crayfish (family Parastacidae) of Queensland, with an appendix describing other Australian species. Records of the Australian Museum 22: 368-388.

Title Illustrations
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Euastacus hystricosus
Photo copyright © Keith A. Crandall

Copyright © Keith A. Crandall
About This Page
Page constructed by Emily Browne.

Keith A. Crandall
Brigham Young University, Provo, Utah, USA

Page: Tree of Life Euastacus hystricosus Riek 1951. Authored by Keith A. Crandall. The TEXT of this page is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Crandall, Keith A. 2001. Euastacus hystricosus Riek 1951. Version 01 January 2001 (under construction). http://tolweb.org/Euastacus_hystricosus/7923/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/

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