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That extra yellow on ultras

Kevin S.

Active member
I think anyone familiar with ultra or ultramel aneries has seen the contrasting excess yellow coloration that sometimes manifests along the neck, back, and/or top of the head (referred to here as "yellow neck" for convenience). This seems to have originated with the ultra morph, but is not always present in association with it. I'm curious to know if anyone has observed any cases of this "yellow neck" independent of ultra. For example, has anyone produced non ultras/ultramels that showed the dramatic yellow suffusion or does it only show up in combination with ultra morphs? Also, has anyone found a rhyme or reason to whether or not ultra offspring from "yellow neck" parents show the trait? I'm operating under the assumption that it only occurs in combination with ultra and is inherited polygenically (or maybe is more prominent in animals with more gray rat influence), but never really looked into it enough to be sure, so thought I'd check with the community. I look forward to any relevant responses.


I'm well aware that corns naturally display some lateral yellow coloration on the anterior third of their bodies. I'm not talking about that, but the excessive display that often saturates the sides and extends to the head and dorsum as seen in these example pictures.

Here's an example pic from Ian's Vivarium:
http://iansvivarium.com/morphs/tequila_sunrise/images/2068803_orig[1].jpg

Another from VMS Herp:
http://www.vmsherp.com/ImagePages/Corns/TequilaSunriseHS.htm
 
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