Pomatomus;4310501; said:
I don't know, it has patches of melanin on the skin. At least not 100% albino.
Polypterus Delhezi "albino"
- Thread starter goldcook
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I don't know, it has patches of melanin on the skin. At least not 100% albino.
drgnfrc13;4310550; said:No, albino
albino = lack of pigments other than pink/red
leucistic = pure white with black eyes
No, pink red is caused by the hemoglobin in blood (visible through the eyes, gives appearance of pink eyes)... not even pigmentation. Leucistic is REDUCED pigment (all pigmentations except melanin?), albino = does not produce melanin.
Well, according to this old post I just found, we are both wrong ( http://www.monsterfishkeepers.com/forums/showpost.php?p=1742460&postcount=9 )BlackShark11k;4310564; said:
From looking at this post, I had the correct definition of leucism, but my definition of albinism was incorrect, and with you it was the opposite. But it looks like we were all wrong about this fish's mutation (which I now believe is actually hypomelanism).
drgnfrc13;4310602; said:
"Leucistic - A pure white snake with dark eyes. The homozygous phenotype of Lesser Platinum, Mojave and Fire mutations."
Aren't those ball python morphs? Kind of odd. Like he copied them from somewhere.
Anyways, I was basing my answer because I thought a TRUE albino would have to 100% be lacking of ALL pigment, but I guess it can be a partial lacking too. And I'm pretty sure leucistic fish can have red eyes too, thats a poor way to judge it IMO.
Color morphs do not change between different species, so when determining which color morph you are looking at, you would look for the same colors reguardless of what type of animal you are observing.BlackShark11k;4310615; said:
^^And in case I worded that weirdly (I'm not sure whether I did or not, it sounded right when I was typing it, but idk), basically what I mean is that a leucistic snake is going to have the same pigments as a leucistic fish, as well as a xanthic fish with a xanthic snake, and a melanistic fish with... you get the idea. Oh and, I know he copied it off the internet (it's pretty obvious, and I don't think he was trying to hide it). And I'm prettty sure that a leucistic animal can't have red eyes unless its natural eye pigment is red (though I could be wrong).
Edit: I looked at it again, and he even said it was from a "glossary of genetic terms".
drgnfrc13;4310671; said:
And here's why:
"In contrast, leucistic animals have normally coloured eyes. This is because the melanocytes of the RPE are not derived from the neural crest, instead an outpouching of the neural tube generates the optic cup which, in turn, forms the retina. As these cells are from an independent developmental origin, they are typically unaffected by the genetic cause of leucism."
- Wikipedia
But yeah, I see what your saying when you say all species its the same, just thought it was funny he was talking about snake morphs like he copied it from a ball python forum
Often snake morphs just get random cool names, I know that the kind of albino morph of ball python advertised as an "Albino" is not, more like a leucistic (and?) xanthic animal, having black eyes.ANYWAYS
Leucistic animals CAN have red eyes, its just uncommon for some reason I don't understand.
Which means the fish in the photo probably is an albino as suggested. For some reason I had the notion an albino would would have to be completely white? Only red eyes because of blood vessels in the eyes? Not sure where i read that but I do recall reading that. And the fish in the pix has patches of melanin which made me think leucistic.
Yeah I can't find any record of leucistic animals having red eyes, but apparently in some mammals they can have blue eyes.
Wikipedia does note partial albinism though, so that may be a possibility. However, it's odd that it's not as patchy as normal piebalding.
Update: I found out that leucistic animals can have black, brown, or blue eyes!
Wikipedia does note partial albinism though, so that may be a possibility. However, it's odd that it's not as patchy as normal piebalding.
Update: I found out that leucistic animals can have black, brown, or blue eyes!
Pomatomus;4310703; said:
There's another mutation I heard about from Paul Loiselle called oligomelanism... its the mutation "pink" convicts have and also red bay snooks. Can't find any info on it but the latin just means reduced melanin...
