I have uploaded rather a lot of photographs to try and show the variation among the specimens I received last week. These fish are not larger than 2" TL. At first glance when acclimatising them I thought they were the usual B. rostrata, but the next day when I took a closer look, I saw differences. This supplier also has standard B. rostrata and standard B. kubotai in stock at the moment, and he is one of the best out there. His stock list is extensive (with so many rare species) and he has no reason to supply B. rostrata under two separate names if they weren't slightly different/from different locations. Whether or not they are a brand new species as claimed, is another matter!
To the eye they looked to have a silvery base colour, but in the pics you will see golden colours at certain angles. I'll number the pics so that if anyone wants to talk about a certain specimen, it'll be easy to refer back. The loaches stirred up quite a bit of debris in the photo tank, and apologies for not having been able to find time to clean the pics up.
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Emma