Vertebrate fauna of SE Asia
  

 

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Text and photos by Nick Baker, unless otherwise credited.
Copyright ゥ Ecology Asia 2020

 
 
     
   
   

 

   
   
 
Forest Halfbeak
   
   

Fig 1


Fig 2


Fig 3


 

 

 

 

 

 

 

 

 

 

Order : Beloniformes
Family : HEMIRAMPHIDAE
Species : Hemirhamphodon pogonognathus
Maximum Length : 12 cm

The Forest Halfbeak inhabits clear, forest streams. As with other halfbeaks it is a surface dweller which continuously faces upstream while it searches for food prey such as fallen insects.

It can be distinguished from the similar Pygmy Halfbeak Dermogenys pusillus by the position of the dorsal fin which begins forward of the anal fin. The Forest Halfbeak is also more colourful, and bears a small tell-tale drooping appendage at the front of the lower jaw (see inset).

The species ranges from Southern Thailand through Peninsular Malaysia and  Singapore to parts of Indonesia.   


Figs 1 to 3 : Forest Halfbeaks from shallow, forest streams in Singapore.


References : F1