Just thought I would share a couple of pictures of our latest hognose purchases. Both are males.


Axanthic
http://i127.photobucket.com/albums/p153/jamesj_09/DSCF4663.jpg

Anaconda
http://i127.photobucket.com/albums/p153/jamesj_09/100_1257800x600.jpg

Congrats on the new pick-ups... Both are very nice representatives of their morph...

congrats on the new pick ups.

awesome. those are some hot snakes.
however, i thought this was a "new morph of hognoses" thread. I leave disappointed.

so is that axanthic or anerythistic

so is that axanthic or anerythistic
Same thing i believe.

Yea same thing. Want to pick up a female axanthic this year too.

Hey there

Nice axanthic and conda, the axanthic looks like a nice high contrast! both very important ingredients in many cool combos!

axanthic and anerythistic aren't the same.

axanthic is lack of yellow pigment.

anerythistic is lack of red pigment.

nice pick ups.

Cute little fellas.

Dan

Good luck with them!

so what are your plans with them? combo?

Gotta love the anery's.

axanthic and anerythistic aren't the same.

axanthic is lack of yellow pigment.

anerythistic is lack of red pigment.

This is true by definition... However, the proper term that should be applied to these animals is axanthic... And here is why...

Erythrophores are in fact red pigment Xanthophores...

so what are your plans with them? combo?

The axanthic will be going to our albinos first making double het snows. Then we will hopefully produce some more of our own female axanthics for making combos.

The anaconda will make more anacondas with our normal girls to make some females for future use. And then I want to make axanthic anacondas / supercondas eventually.

This is true by definition... However, the proper term that should be applied to these animals is axanthic... And here is why...

Erythrophores are in fact red pigment Xanthophores...

So is that the case with all Hognoses? Is there no "anery" hognose?

So is that the case with all Hognoses? Is there no "anery" hognose?

I am almost certain that "anerythristc" is not even a real word... Seems that it is not present in any genetic dictionary or biological dictionary... Only pops up in reptile links... From what I can tell, its a made up word...

With that being said, axanthism is the proper term for lack of yellow, orange, and red pigmentation...

I see. I didn't realize axanthism encompassed a lack of all three.

I see. I didn't realize axanthism encompassed a lack of all three.

That is because there is no real clear cut distiction between chromatophores... Erythrophores are considered xanthophores...

If you think about it, a normal hognose belly is black and orange, so if you took away just red pigment ("anerythristic") the belly should be black and yellow... But the bellies are black and grey... So being that erythrophores are considered xanthophores, it is more fitting to call the mutation axanthic in my opinion...

Considering that this is being brought up here too, I'll repost what I have already said on the topic that I originally posted on KS...

I would say that there is a lot of confusion about these terms due to poor documentation and web searches bringing up anything really definitive other than reptile sites. However, I do believe that we can make intelligent presumptions based on the little information we do have.

In regards to Anerythrism, we first have to look up the word Erythrism which basically means "Unusual red pigmentation, as of hair or plumage." (http://www.thefreedictionary.com/erythrism , http://en.wikipedia.org/wiki/Erythrism). Therefore, the adding of "An-", meaning "not; without" (http://www.thefreedictionary.com/an-) to Eyrthrism would denote the opposite definition meaning "without red pigmentation".

Almost the same type of word play is used with Axanthism but instead of adding "An-", we are merely adding "A-" which means exactly the same thing (http://www.thefreedictionary.com/a-). The word Xanthism basically means "a term that may be applied to birds, fish and other animals whose colouration is unusually yellow through an excess of yellow pigment, or possibly a loss of darker pigments that allows yellow pigment to be unusually dominant. It is often associated with the lack of usual red pigmentation and its replacement with yellow" (http://en.wikipedia.org/wiki/Xanthism , http://www.thefreedictionary.com/xanthism). Axanthism obviously would be the opposite meaning "lacking yellow pigmentation" and possibly red as well depending on whose terminology you want to adhere to.

Having said all of that, both words are clearly defined regardless of how we choose to understand or apply them to our morphs. However, in regards to Western Hognose snakes, I believe the correct term to use is Axanthism due to the fact that they are completely lacking yellow pigmentation and you never see any yellow leak through as they age. For example, look at Anerythristic Cornsnakes, as they age, there's a variable amount of yellow that eventually leaks through and this is also seen in Snow Corns as well, however, there is no visible red pigmentation. Considering that Western Hognose generally display varying amounts of yellow on their ventrals suggests that if they were Anerythristic, then the yellow might eventually leak or there would be traces of it, there are not. However, if Axanthism, based on the previous definitions given, is to be defined as lack of yellow and possibly red pigmentation as well, then these Hognose definitely fit that description, pure and simple. If anybody can should be an Anerythristic or Snow Hognose that displays any amount of yellow at any age, I would concede the point, but my 2 Axanthics that are roughly 4 years old show no yellow or red pigmentation whatsoever and neither do any other Axanthics that I have seen.

So I ask again, why have so many chosen to use the term Anerythristic when the 2 line originators still call them Axanthics? State your arguments please! :D

The black and white one is very pretty, regardless.

The debate is interesting, though.

Rob

Considering that this is being brought up here too, I'll repost what I have already said on the topic that I originally posted on KS...


agreed.