David Bickford and
Djoko Iskandar, for logistical support for the field survey;Daisy Wowor, for assisting with research permits; Ah Meng
and Ah Mong, for assistance in Pontianak and Nanga Pinoh
respectively; Rohan Pethiyagoda, Maurice Kottelat and
Sven Kullander, for useful comments and reviews; Maurice
Kottelat (CMK) and Kelvin Lim (RMBR) for access to
respective collections and use of map in Fig. 4 (MK); students
and helpers in the field; funding from Raffl es Museum of
Biodiversity Research and research grants R-154-000-270-
112, R-154-000-318-112, R-264-001-004-272 from NUS.