The Southeast Asian species of Hypsugo are rare bats, except for H. cadornae and H. pulveratus, which are distributed throughout the Indomalayan region. Hypsugo macrotis is restricted to Peninsular Malaysia, Sumatra, Java and adjacent islands, and is known only from a handful of specimens. Here we report a new locality record of the species from Seremban, Peninsular Malaysia, which also represents the first known building-dweller colony of any Hypsugo from the region. We discuss the taxonomic status of two morphologically similar species, H. macrotis and H. vordermanni, and provide the first COI and cyt b gene sequences for H. macrotis and reconstruct the species' phylogenetic relationships.

Small mammal surveys were conducted at Niah National Park, Lambir Hills National Park and Gunung Mulu National Park, Miri Division, in the northeastern region of Sarawak, using ground-level and canopy mist-nets, harp traps, and cage traps. The main objective of these surveys was to assess small mammal diversity in the northeastern region of Sarawak. Gunung Mulu National Park recorded the highest diversity of small mammals with 29 species, followed by Niah National Park with 19 species, and Lambir Hills National Park, 17 species. These surveys revealed nine new locality records for Miri, including eight bat species (Dyacopterus spadiceus, Megaerops wetmorei, Nycteris tragata, Hipposideros cineraceus, Hesperoptenus blanfordi, Kerivoula pellucida, Murina suilla and Myotis muricola)and a squirrel (Sundasciurus brookei). Megaerops wetmorei is also reported for the first time in Sarawak.

Small mammal survey was conducted at Samunsam Wildlife Sanctuary (WS) from 20th until 25th October 2014. This survey aimed to assess the diversity of small mammals particularly from the order Chiroptera, Insectivora, Rodentia and Scadentia. These orders were targeted primarily to gain better understanding on the ecology and distribution of these understudied taxa in Borneo. Our survey recorded a total of 30 species of small mammals from six trapping nights. Order Chiroptera was recorded with the highest number of species (seven families; 22 species), followed by order Rodentia (two families; six species) and order Scandentia (two species). None was recorded from the order Insectivora. The most abundant species were Rhinolophus trifoliatus (n=6) for Chiroptera, Maxomys whiteheadi (n=7) for Rodentia and Tupaia tana (n=5) for Scandentia. Data presented here is the first comprehensive information on Samunsam’s small mammals. This data can be used to gain better insights on the population trends at regional and local scale, as well as in improving the management plans of Samunsam WS. Although species diversity in Samunsam WS is comparable to other sites in western Sarawak, result presented here need to be treated with caution as this is the first comprehensive study that only cover area close to park headquarters.  Keywords: Chiroptera, diversity, Insectivora, inventory, Rodentia, Scandentia