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Fig 4
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Order : CHIROPTERA
Family : Hipposideridae
Species : Hipposideros cineraceus
Forearm Length : up to 4.2 cm
Weight : up to 5.5 grams
Hipposideros cineraceus
(Ashy Roundleaf Bat, Least Leaf-nosed Bat) occurs widely in the Southeast Asia
region, although bats designated as Hipposideros cineraceus may
include at least two separate species.
These bats inhabit a variety of lowland forest types (including mangrove),
and appear capable of adapting to a fair degree of habitat modification.
They roost in caves, tree hollows and man-made structures including
culverts. The highest elevation record is at 1480 metres.
The upper fur colour is described as "buffy-brown to greyish brown (or dark
brown)" and its underparts "pale brown to buffy white". The Singapore
population appears more orange-brown. The noseleaf is pink, and lacks
lateral leaflets. The ears are relatively large, rounded and have a pointed
tip.
This species occurs in Myanmar, Thailand, Cambodia, Laos, Vietnam,
Peninsular Malaysia, Singapore, Sumatra and Borneo. Outside the
Southeast Asia region it is known from parts of Pakistan, India, Nepal and
China.
In Singapore, roosts of this species were first located by Mr. Noel Thomas
on the island of Pulau Ubin in 2016-2017.
Figs 1 and 2 : Images of an example from the island of Pulau Ubin, Singapore
known to occupy a subterranean roost in an abandoned structure.
Fig 3 : Regenerating lowland forest on Pulau Ubin, Singapore; the island
supports a small population of Hipposideros cineraceus.
Fig 4 : Probable Hipposideros cineraceus from degraded lowland forest edge near Ipoh, Perak,
Peninsular Malaysia. A constant frequency (CF) call of 144.5 kHz was
detected nearby.
References :
Douangboubpha , B., Srinivasulu, B. & Srinivasulu, C. 2019. Hipposideros
cineraceus. The IUCN Red List of Threatened Species 2019: e.T10119A2209310
Francis, C.M. 2019. A Field Guide to the Mammals of South-east Asia. Second
Edition. New Holland. 416 pp.
Kingston, T., Lim B.L., Zubaid, A., 2006. Bats of Krau Wildlife
Reserve. Universiti Kebangsaan Malaysia.
Links :
Straits Times, Singapore:
'Bat man has a secret mission on Pulau Ubin'
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