Thomas's Horseshoe Bat (Rhinolophus thomasi)


HB: 48-50; T: 19-20; FA: 44-46; E:16-18; HF: 8-8.8.

A small pale brown bat, with individual hairs light yellow at the base and medium brown at the tips. It resembles R. acuminatus in many of its external characters, but is smaller and as a more narrow horseshoe with a lancet which is broad and short. The sella is parallel sided, and rather wide; the connecting process is indistinctly notched, with the upper part rounded and bearing long hairs. The skull is short and broad similar to R. rouxi, but smaller; the nasal swellings are low, giving a rather smooth profile. The lower middle premolar is external to the tooth row and the first and third lower premolars are in contact. The front upper premolar is external, and the upper canine and posterior premolar are in contact.


Range Description:

This species occurs in South West China, extending down the Indochina Peninsula in Myanmar, Vietnam, Thailand, and Lao PDR.
Countries: Native:
China; Lao People's Democratic Republic; Myanmar; Thailand; Vietnam


 There is no information available on the population and abundance of this species. However, it is known to be locally uncommon to common. It is also known to roost in caves.
Population Trend: Unknown

 Habitat and Ecology:

 This species is associated with limestone areas and found in caves from 400 up to 1,100 m asl. It can also occur in degraded habitats. Nothing is known from China, but this species is known to roost in caves with other species of Rhinolophus in other areas.
Systems: Terrestrial

 Major Threat(s):

There are no major threats, although the species appears to be dependent on caves and their destruction in some parts of the range may cause localised population declines (C. Francis pers. comm.).

Conservation Actions:

It is known from a number of protected areas throughout its range. More research need to be carried out so as to accumulate more information on this species