Thick-thumbed Myotis (Myotis rosseti)


HB: 36-38; T: 37-38; FA: 27-30; HF:7; E:11-12.

The upper parts are dark greyish brown, with the underparts lighter. M.rosseti can easily be recognised by the by the fleshy. wrinkled pad at the base of the thumb and the broad, concave pad on the sole of the foot. The ears are funnel shaped and quite long, reaching the end of the muzzle when laid forwards; the tragus is about half the length of the ear, with a blunt, interiorly directed point. The interfemoral membrane is attached just below the ankle, with the wing attached at the base of the first digit. (Hill 1969) 

Range Description:

This species occurs in Cambodia, Thailand, and possibly Vietnam (Borissenko and Kruskop 2003), and is known from one locality in Lao PDR (C. Francis pers. comm.).
Countries: Native:
Cambodia; Lao People's Democratic Republic; Thailand


This species is known from only a small number of individuals in any country.
Population Trend: Unknown

Habitat and Ecology:

This species uses disturbed habitats, in Thailand it is found in tree hollows and house roofs, and bamboo.
Systems: Terrestrial

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

 Conservation Actions: This species occurs in some protected areas throughout its range. Further studies are needed into the distribution, abundance, and ecology of this species.