[Peter Finke]

Dear Bartian, don’t be annoyed by my answer but it is really impossible to identify a bintan-variant by such descriptions and drawings. It would be of much more help if you could say some words about where or whom did you get the fish from, and any additional information you could squeeze out of this person or trader regarding the question whom or where he did get these fish from.
Otherwise we all must wait. Wait for good (!) photos.