Engaeus orramakunna
Mount Arthur Burrowing Crayfish
Keith A. CrandallTypes
Holotype, Tasmanian Museum and Art Gallery, Hobart G3222 (Male); allotype, Tasmanian Museum and Art Gallery, Hobart G3223 (Female); paratypes, Tasmanian Museum and Art Gallery, Hobart G3224 (Female), G3225 (Intersexed), Museum of Victoria, Melbourne J14727 (Male), J14728 (Female).Type Locality
Tributary of Pipers River on Lilydale Road, about 3 km south of Lilydale, northeast Tasmania.Habitat
At both sites from which the species was collected, the vegetation was wet sclerophyll and contained the species Eucalyptus obliqua, Acacia dealbata, A. melanoxylon, and Dicksonia antarctica. The soils at the type locality were varied and appeared to influence the type of burrow constructed. For instance by the bank of the creek where the soils were light orange in color and contained a light clay but heavy silt content, large burrow systems could be detected from the surface by the numerous small openings; these openings converged on larger tunnels which themselves converged on huge water-filled chambers at the creek level (and which contained in excess of 10-15 liters of water). At a greater distance from the creek where the soils contained a grey clay and a sand component, the burrows had several large openings giving rise to tunnels which ramified both horizontally and vertically; one of the vertical tunnels could be enlarged to form a chamber above the water-table level. This information suggests that this species is capable of constructing burrows in both type 2 and 3 habitats.References
Baillie, Jonathan, and Brian Groombridge. 1996. IUCN Red List of Threatened Animals.
Horwitz, Pierre. 1990. A Taxonomic Revision of Species in the Freshwater Crayfish Genus Engaeus Erichson (Decapoda: Parastacidae). Invertebr. Taxon., 1990, 4, 427-614.
About This Page
Page constructed by Emily Browne.
Keith A. Crandall
Brigham Young University, Provo, Utah, USA
Page copyright © 2001 Keith A. Crandall
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Engaeus orramakunna . Mount Arthur Burrowing Crayfish.
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Citing this page:
Crandall, Keith A. 2001. Engaeus orramakunna . Mount Arthur Burrowing Crayfish. Version 01 January 2001 (under construction). http://tolweb.org/Engaeus_orramakunna/7842/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/
