138 PAGAN TRIBES ON BORNEO chap. 



a pole driven vertically into the bed of the river. 

 (Fig. 2i). At one side of the cage is a circular 

 aperture. Into this fits a section of bamboo, the 

 end of which within the cage is cut into longitudinal 

 strips that are made to converge, forming a cone, 

 through the apex of which the fish can push his 

 way into the cage, but which prevents his return. 

 It is an application of the same valve principle as 



that used in the trap 

 first described above. 



A larger trap is the 

 kilongy which is used in 

 the lower reaches of the 

 rivers and also on the 

 coast. It consists of a 

 fence of stakes running 

 out from the bank or 

 shore into water some 

 two fathoms in depth. 

 The free end of the 

 fence is wound in a 

 spiral of about two 

 turns. One or two 

 gates are made between 

 the outer and the inner 

 chambers of the spiral 

 on the side nearest to 

 the bank or shore, and 

 are left open when the trap is set. The fish, 

 finding themselves confined by the fence, make 

 for deeper water, and, entering the central chamber, 

 do not readily return. The fisherman then closes 

 the gate and takes out the fish with a landing net. 



A prawn trap consists of a cylinder of heavy 

 bark. One end is closed with a conical valve of 

 bamboo strips like that of the two traps described 

 above ; the other flattened end is hinged to open 

 for the extraction of the catch. The trap is baited 



Fig. 21. 



