Pseudomys pilligaensis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Pseudomys pilligaensis
Species Authority: Fox & Briscoe, 1980
Common Name(s):
English Pilliga Mouse
Taxonomic Notes: Pseudomys pilligaensis is treated as a separate species following Musser and Carleton (2005), but it might be best considered a population of P. delicatulus that shows evidence of past hybridization with P. novaehollandiae (F. Ford pers. comm.).

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Menkhorst, P. & Ellis, M.
Reviewer(s): Lamoreux, J. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)
Listed as Data Deficient in view of recent doubts as to its taxonomic validity. Unpublished DNA sequencing indicates that P. pilligaensis is the result of hybridisation between P. delicatulus and P. novaehollandiae. Should this taxonomic issue be resolved such that P. pilligaensis is again widely accepted as a full species, it would need to be re-assessed. At present, it would be considered Endangered under this scenario because its extent of occurrence is less than 5,000 km2, its distribution is severely fragmented, and there is continuing decline in the quality of habitat due to mining and logging.
1996 Vulnerable
1994 Indeterminate (Groombridge 1994)
1990 Indeterminate (IUCN 1990)

Geographic Range [top]

Range Description: This species is known only from the Pilliga Scrub region of New South Wales, Australia (Lee 1995; Fox 1995).
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is rare and patchily distributed.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This little-known species is restricted to the Pilliga Scrub which consists of mixed open woodland, with a sparse understorey of heath on sandy soil and sandstone ridges (Lee 1995; Fox 1995). The female give birth to an average of three young (Fox 1995).
Systems: Terrestrial

Threats [top]

Major Threat(s): It has a small distribution and is threatened by habitat loss due to logging, mining and changes in fire regimes. It may also be threatened by predation from introduced cats and foxes.

Conservation Actions [top]

Conservation Actions: It is present in the Pilliga Nature Reserve and the Pilliga State Forest. A recovery plan was prepared but never published. Further studies are needed into the taxonomy, ecology, and threats to this apparently hybrid species.

Citation: Menkhorst, P. & Ellis, M. 2008. Pseudomys pilligaensis. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 01 March 2015.
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