Notices |
Hello!
Either you have not registered on this site yet, or you are registered but have not logged in. In either case, you will not be able to use the full functionality of this site until you have registered, and then logged in after your registration has been approved.
Registration is FREE, so please register so you can participate instead of remaining a lurker....
Please note that the information requested during registration will be used to determine your legitimacy as a participant of this site. As such, any information you provide that is determined to be false, inaccurate, misleading, or highly suspicious will result in your registration being rejected. This is designed to try to discourage as much as possible those spammers and scammers that tend to plague sites of this nature, to the detriment of all the legitimate members trying to enjoy the features this site provides for them.
Of particular importance is the REQUIREMENT that you provide your REAL full name upon registering. Sorry, but this is not like other sites where anonymity is more the rule.
Also your TRUE location is important. If the location you enter in your profile field does not match the location of your registration IP address, then your registration will be rejected. As such, I strongly urge registrants to avoid using a VPN service to register, as they are often used by spammers and scammers, and as such will be blocked when discovered when auditing new registrations.
Sorry about all these hoops to jump through, but I am quite serious about blocking spammers and scammers at the gate on this site and am doing the very best that I can to that effect. Trust me, I would rather be doing more interesting things with my time, and wouldn't be making this effort if I didn't think it was worthwhile.
|
Genetics, Taxonomy, Hybridization General discussions about the science of genetics as well as the ever changing face of taxonomy. Issues concerning hybridization are welcome here as well. |
10-20-2005, 06:55 PM
|
#1
|
|
What is the difference between..
...leucism and albinism?
|
|
|
10-20-2005, 08:21 PM
|
#2
|
|
Leucistic is an all white animal with blue or dark eyes. An albino has red eyes and lacks all pigment. Eye color is how you tell if a pure white animal is an albino or a leucistic.
I have a pure white cockatiel. He has dark eyes so he is a leucistic and not an albino. Of course bird people don't call them leucistic, he is called a white faced white. LOL
|
|
|
10-21-2005, 01:38 AM
|
#4
|
|
Quote:
Originally Posted by coyote
...leucism and albinism?
|
Here is a great little paper by a student that is easy to understand and will fully answer your question. It's about 1/3 down the page...
http://www.ths.4t.com/newsletters/vol10_issue12.htm
|
|
|
10-21-2005, 01:43 AM
|
#5
|
|
Quote:
Originally Posted by M.Dwight
|
Found it, read it and the information is right on. Thanks
|
|
|
11-11-2005, 02:35 PM
|
#6
|
|
Quote:
Originally Posted by Karen Hulvey
Leucistic is an all white animal with blue or dark eyes. An albino has red eyes and lacks all pigment. Eye color is how you tell if a pure white animal is an albino or a leucistic.
I have a pure white cockatiel. He has dark eyes so he is a leucistic and not an albino. Of course bird people don't call them leucistic, he is called a white faced white. LOL
|
Tyrosinase positive albinos usually have dark, not pink eyes. Some Lucys have blue or darker colored eyes. Some, like the leucistic blood, have dark heads, so the question is actually more specific to answer in one fell swoop.
|
|
|
11-12-2005, 03:31 AM
|
#7
|
|
Quote:
Originally Posted by Karen Hulvey
Leucistic is an all white animal with blue or dark eyes. An albino has red eyes and lacks all pigment. Eye color is how you tell if a pure white animal is an albino or a leucistic.
|
As mentioned in the article that M. Dwight linked, this is not entirely accurate. Unless one was asking "how can you tell if a snake that is all white is Leucistic or Albino" then that might be accurate, but as it applies in general it is not. Albanism is the absence of melanin, not the lack of all pigments.
"Albinos" can have other colors as in; albino CA kings, albino Sinaloans, Albino BP, etc.
|
|
|
11-13-2005, 12:35 PM
|
#8
|
|
Quote:
Originally Posted by CherryFive
Tyrosinase positive albinos usually have dark, not pink eyes. Some Lucys have blue or darker colored eyes. Some, like the leucistic blood, have dark heads, so the question is actually more specific to answer in one fell swoop.
|
There are a variety of "tyrosinase positive" albinos. In black rat snakes, tyrosinase positive albinos have pink eyes and lack black pigment. In boa constrictors, tyrosinase positive albinos have dark eyes and have some black pigment, though less than normal. Then there are the Kahl and Sharp strain albino boa constrictors which have pink eyes and lack black pigment. They have never been tested for tyrosinase activity. In my opinion, one has normal tyrosinase, and possibly both do.
It is also possible to get pinkeyed leucistics by combining leucistic and albino. The effect of the leucistic mutant prevents formation of all pigment in the skin, and the effect of the albino mutant prevents formation of all pigment in the eyes.
Tyrosinase function is not necessariily full on or full off. There can be partly functional tyrosinase. Siamese cats are lighter than normal cats because they have a less than fully functional tyrosinase enzyme. As Tremper albino leopard geckos also get darker if raised in cool surroundings, I have wondered if that mutant is similar to the Siamese cat's.
|
|
|
Join
now to reply to this thread or open new ones
for your questions & comments! FaunaClassifieds.com
is the largest online community about Reptile
& Amphibians, Snakes, Lizards and number one
classifieds service with thousands of ads to look
for. Registration is open to everyone and FREE.
Click Here to Register!
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -4. The time now is 09:54 PM.
|
|