Hipposideros bicolor

Hipposideros bicolor (Temminck, 1834)

Bicolored roundleaf bat

New material

3♂♂ (MZB M26785 / 26786 / 26817);

3♀♀ (MZB M26365 / 26366 / 26754).

Records from Borneo

Brunei: Batu Apoi NP (Kofron, 2002). Sabah: Danum Valley, Gomantong, Sukau (Payne et al., 2000). Sarawak: Mulu NP (Payne et al., 2000); Bau limestone forma- tions (Mohd-Azlan et al., 2005). CentKal: Barito Ulu Research Area (D. Pio, unpub- lished data). EastKal: Sungai Lesan PF (M. J. Struebig, unpublished data).

Comments

Individuals were captured in harp-traps set across forest trails at Marang and Tintang formations. With the exception of more recent records from Barito Ulu and Sungai Lesan, the confirmation of this spe- cies in Sangkulirang is an important new record for Kalimantan. Elsewhere in Borneo it is known from only a few scattered localities in Brunei, Sabah and Sarawak where it is known to roost in caves and tunnels. In Peninsular Malaysia H. bicolor is represented by two phonic types that exhibit genetic and acoustic divergence, but morphological overlap (Kingston et al., 2001). All individ- uals captured at Sangkulirang resemble the 131 kHz phonic type based on subtle differ- ences in noseleaf shape and forearm length, 45.5–47.8 mm (M. J. Struebig, personal ob- servation following Kingston et al., 2006), but this can only be confirmed by genetic analysis or call recordings.