The orbiculus leaf-nosed bat (Hipposideros orbiculus), also known as the orbiculus roundleaf bat and small disc roundleaf bat, is a species of bat from the family Hipposideridae. The species has been found on the island of SumatrainIndonesia and on peninsular Malaysia.[2]
Its forearm length is 46.15–48.50 mm (1.817–1.909 in). Its tail is 26.2–34.2 mm (1.03–1.35 in) long and its ears are 20.6–23.6 mm (0.81–0.93 in) long. It echolocates at around 80 kHz.[5]
The orbiculus leaf-nosed bat has been documented in three areas: West Sumatra of Indonesia, near Rawang, SelangorofMalaysia, and Sungkai Wildlife Forest Reserve, which is also in Malaysia.[6]
As of 2015, the orbiculus leaf-nosed bat ess listed as a vulnerable species on the IUCN Red List because of its small extent of occurrence and continuing decline of the extent and quality of its habitat, as well as its population. It had previously been listed as an endangered species but was
reevaluated because its extent of occurrence was recalculated to 20,345 km2 (7,855 sq mi).[1][7] The orbiculus leaf-nosed bat is a terrestrial species that prefers lowlandrainforests, and its habitat is degrading due to logging, agriculture, infrastructure development, plantations, and forest fire.[1]
^Francis, C. M.; Kock, D.; Habersetzer, J. (1999). "Sibling species of Hipposideros ridleyi (Mammalia, Chiroptera, Hipposideridae)". Senckenbergiana Biologica. 79 (2): 255–270.
^Guillén-Servent, Antonio; Francis, Charles M. (2006). "A new species of bat of the Hipposideros bicolor group (Chiroptera: Hipposideridae) from Central Laos, with evidence of convergent evolution with Sundaic taxa". Acta Chiropterologica. 8: 39–61. doi:10.3161/1733-5329(2006)8[39:ANSOBO]2.0.CO;2. S2CID86102341.
