I have never heard that common name before. Are those maybe Yunannilus cruciatus (sp?) loaches? I had some of those for a while and they are really neat little fish. They're pretty active and a lot less shy than a lot of loaches I have kept. If you do not have any java moss, you might consider it- these loaches love it. They will perch and hang out in it.
Nice find, rare fish, and yours look nice and fat. Congrats on the pickup!