Agreed. Definitely a recessive gene in the mix there. To be fair nobody knows even with wild caught rays what hidden genes there are in their lineage.
Very similar to many BD/Pearl x BD's.
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Hi, my name is Kevin and I work with Richard Ross as Head of Operations.
Interesting to see the comments about this ray. Sam, your comment is very true. Any ray imported from the wild is imported as what the fisherman or exporter calls it. This fish was bred from wild black diamond breeding stock. Rays can interbreed in the wild and yes there could be a recessive trait that is showing up. I call this a black diamond pup because it came from my black diamond breeders and had the 3 rows of spotting. Rays are highly polymorphic and the same species can have many variations. Even within what they call Black Diamond there are solid spots, big spots, small spots, broken spots, Island spots, and Eclipse spots.
I recall seeing something here on MFK a while back about some p14 pups, where one of the pups from the litter turned out different from the rest and that it didn't look P14 at all. It was brownish or the pattern was unique. In any case, this could be a similar situation of recessive gene or a polymorphic variation.
T1karmann is also correct that my book doesn't classify black diamonds. And that's because nobody new what a black diamond was back then. It was just called Leopoldi. Black Diamond is only a name created by the trade to classify Leopoldi with certain spotting characteristics and to attach a higher dollar value to it. The Motoro species exists throughout all of South America. Some are worth more then others but bottom line... they are all motoros. So back to black diamond... I often hear the term bd x leo or bdleo. Which is being referred to as a hybrid between Black diamond and Leopoldi. In the end its still Leopoldi so how can it be referred to as a hybrid. BD's from the wild come from unknown parentage. Either of the parents could be a normal Leopoldi variant. Any ray of the leopoldi variant from the wild with "3 rows" of spotting is being exported as Black Diamond. Of course the most sought after ones are from Sao Felix, but who knows which ones anybody has????
I hope this clarifies a few things.
All in all, just enjoy your fish for what it is. Beauty is in the eye of the beholder, so if you like it, don't let anyone tell you otherwise.