They are puntius assimilis, one of my favorite barbs. they come from the same rivers as denison barbs. I had 7 that i bought for $20 a pop when they were all under 1" so $35 isn't bad for a 2" they aren't very common in the hobby. They get 5" and are very active and boisterous. Don't keep them with anything slow or very shy because these barbs will eat everthing before any other fish get a chance to eat.
sometimes these are confused with filament barbs (puntius filamentosa) which look very similar, but as adults the assimilis are much nicer colored and stay slightly smaller