Under Construction

Engaeus lyelli Clark 1936

Keith A. Crandall
Containing group: Engaeus


Lectotype (designated by Riek 1979), Museum of Victoria, Melbourne J904 (male); paralectotype, Museum of Victoria, Melbourne J906 (male). One of Clark's types assumed to be lost (see Lew Ton & Poore 1987).


This species is found predominantly north of the Great Dividing Range from the Grampian Ranges in the west to near Myrtleford in the east; it has not been found in New South Wales or South Australia and does not appear to extend far from the foothills of the Great Dividing Ranges in Victoria (although its northwards range has not been thoroughly investigated). The distribution is characterised by distinct gaps in its range, with gaps occuring between Moyston and Beaufort, in the Lerderderg River drainage region (where no species of Engaeus have been found), between Ballarat and Daylesford (where only E. merosetosus can be found) and in the Seymour-Yea region (although this gap may be due to insufficient sampling).


E. lyelli is most usually found in type 1b burrows in the banks of creeks or billabongs in dry sclerophyll forest. However the assessment of whether the burrows are connected to the surface water or not (or in other words whether the burrows are connected to the surface water or not (or in other words whether they should be called type 1a, 1b or 2) depends on the height of the water-table at the time of sampling, and this is particularly so for this species since it occurs where the water-table may show marked fluctuations. For instance at the site near Gisborne, in late May 1982 (in a drought year), many animals could be found in short burrows under rocks in the dry river bed and in the banks. In a subsequent visit in September 1983, the river was high and flowing fast, well above the height of the burrows sampled the previous year. Under these circumstances an estimate of the mean level of the water is made and then the burrows are assessed.


Clark, E. 1936. The freshwater and land crayfishes of Australia. Memoirs of the National Museum of Victoria 10, 5-58.

Horwitz, Pierre. 1990. A Taxonomic Revision of Species in the Freshwater Crayfish Genus Engaeus Erichson (Decapoda: Parastacidae). Invertebr. Taxon., 1990, 4, 427-614.

Lew Ton, H. M., and G. C. B. Poore. 1987. Types of Parastacidae (Crustacea: Decapoda) held in the Museum of Victoria. Occasional Papers from the Museum of Victoria 3, 21-29.

Riek, E. F. 1969. The Australian freshwater crayfish (Crustacea: Decapoda: Parastacidae). With descriptions of new species. Australian Journal of Zoology 17, 855-918.

About This Page
Page constructed by Emily Browne.

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

Page: Tree of Life Engaeus lyelli Clark 1936. 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. Engaeus lyelli Clark 1936. Version 01 January 2001 (under construction). http://tolweb.org/Engaeus_lyelli/7835/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/

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