These are lemon bristlenose, commonly (although, mistakenly) called the L-144.
They are a morph of the common bristlenose, basically an albino with dark eyes. They are rare here is Aus, having been here only for a few years and very few breeders as the people who do have them tend to hang on to them.
If you are looking to buy some then prepare for some serious $$$$
Doug's Bristlenose eBook -
The number one source of Bristlenose information and the most detailed breeding guide avaliable
3rd edition LOADS OF INFORMATION, PICS, DIAGRAMS AND BRISTLENOSE GOODNESS
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