Thai horseshoe bat

Rhinolophus siamensis (English: Thai Horseshoe Bat, Thai horseshoe bat ') is a bat species from the genus of horseshoe bats.

Features

Rhinolophus siamensis is a small species and reaches a head-body length of 38 mm, a tail length of 14 mm, a Hinterfußlänge 8-9 mm, an ear length of 19-22 mm, a forearm length of 36-41 mm and a length of skull 17 to 18 mm. The ears are large in proportion to body. The anti-tragus is small. The face width ( zygomatic width) is 8.2 mm and the jaw length 6-7 mm. The third metacarpal bone is slightly shorter than the fourth and fifth. The coat is short, but not woolly. The top is light brown and beige the bottom. The big nose leaf covered his upper lip. The broad and rounded saddle is well coated. The lancet is connected triangular, with a rounded upper extension. The lower lip has three notches. The first molar tooth in the upper row of teeth has a hump. The third lower molar is small and located outside of the tooth row.

Distribution area

The distribution area extends from Yunnan in China, Vietnam and Laos to Thailand.

The life and habitat

The ringing frequency is 51 kHz. Little is known about the life and habitat. The type usually occurs in small numbers. The beds are in caves or mines, which they often share with other bat species.

System

Rhinolophus siamensis species belongs to the group of large-eared horseshoe bat ( Rhinolophus philippinensis ). It was in 1917 as a subspecies of the Long-eared horseshoe bat ( Rhinolopus macrotis ) described and is recognized as a distinct species since 1999. Both taxa differ in size and in the ringing frequency. In Laos and Vietnam, they have a sympatric distribution area.