Iomys horsfieldii


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Iomys horsfieldii
Species Authority: (Waterhouse, 1838)
Common Name(s):
English Javanese Flying Squirrel
Iomys horsfieldi (Waterhouse, 1838) [orth. error]

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Aplin, K. & Lunde, D.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Listed as Least Concern as it is widespread, common, and highly adaptable.

Geographic Range [top]

Range Description: This species ranges from Peninsular Malaysia to Sumatra, Java, and Borneo (Lekagul and McNeely 1988; Thorington and Hoffmann 2005). It has also been recorded from Singapore, Tioman, and Penang.
Brunei Darussalam; Indonesia (Jawa, Kalimantan, Sumatera); Malaysia (Peninsular Malaysia, Sabah, Sarawak); Singapore
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is widespread and common in Malaysia. In Singapore, these animals are listed as rare.
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: These squirrels occur up to 1,000 m in primary forests, secondary, degraded forests and scrub, as well as cultivated areas. They can be a pest in plantations. It is nocturnal, and uses tree hollows.
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no major threats to this species.

Conservation Actions [top]

Conservation Actions: This species is listed as protected in Indonesia and it occurs in a number of protected areas across its range.

Citation: Aplin, K. & Lunde, D. 2008. Iomys horsfieldii. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 02 September 2015.
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