Habitat and distribution


 The part of the stream where the fish lives is fairly fast flowing and strewn with boulders and smaller stones (see photograph). It is possible that this fish also occurs in the headwaters of neighbouring streams, but in any case the species appears to have a very limited distribution.


So far Macrognathus pavo is only known from a single mountain stream, Kyeintali Chaung in the Rakhine Yoma mountain range in western Myanmar.