N. kayan is found in central and northern Borneo.
G. c. aurata is resident in the mountains of northern Borneo.
It is endemic to highland forests in northern Borneo.
The monograph focused primarily on new discoveries from northern Borneo.
This species is found in northern Borneo at middle elevations (Payne et al. 1985).
They have been found in only a few places in Indonesia and northern Borneo.
Other possible locations such as northern Borneo and Philippines are also suggested.
Theriodes sandakanensis is a species of loach found only in northern Borneo.
It was discovered in northern Borneo and described in 1871.
It is restricted to montane forest in northern Borneo.