Somphongs' Rasbora (Trigonostigma somphongsi, formerly Rasbora
somphongsi) was described in 1958 by Hermann Meinken on the basis of
specimens collected at the end of 1957 and imported from Thailand for the
ornamental-fish trade. It appears to have been imported simultaneously by J.
van Hengel (Aquarium Westhandel, Amsterdam) and A. Werner in Munich. Both
importers sent specimens to Meinken with a request for identification. Even
then the precise collecting location was unclear, and this is reflected in the very
imprecise details given for the type locality (in the actual original description in
DATZ there are no details given at all, in the somewhat later, more precise
scientific description in Opuscula Zoologica it says "südliches Menam
(Thailand)" (= southern Menam (Thailand)).