T. sompongsi is also classified as Critical and also lack of all info. mainly from unsincerity of fish dealers who always distorted range and population info., untill that fish extinct?? we may know the truth!! B. micros is Thai endemic ranged throughout Esarn but in very rare habitat, locally common in only well intact marshlands. It may occured in Lao but still no record, although several survey done by Rainboth, Kottelat, Tyson etc.