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Recent content by neotropicalherps

  1. neotropicalherps

    What IS THIS Tegu? Help :)

    I am sure it will make a great pet, just feed it well and keep it warm!
  2. neotropicalherps

    teguixin information and photos

    In teguixin I have found very little morphology that actually differentiates them, supraoculars, supracillaries at the last supraocular, coloration/pattern. There are two different types of paplebrals but so far I have not been able to correlate them with other traits. The loreal is single in...
  3. neotropicalherps

    teguixin information and photos

    When you say you have a whole lineage I assume you mean a captive bred lineage, correct? So, an ancestor had the trait and you encouraged it by breeding the adults? On another topic, how much variation have you seen in the palpebral membrane (the clear membrane in the lower eye lid). Some have...
  4. neotropicalherps

    What IS THIS Tegu? Help :)

    Morphology works well for somethings but it appears that evolution has produced cryptic species in many situations and as a result the only way to sort them out is to sequence some genes and compare them. Sometimes superficial morphology - stuff like color patterns and even behavior is...
  5. neotropicalherps

    teguixin information and photos

    Small samples are generally the rule in squamate studies because specimens tend to be difficult to come by. But, when studying something that is in trade there is no excuse for keeping ridiculous restrictions on moving extant museum specimens on loan across international borders. As a result I...
  6. neotropicalherps

    teguixin information and photos

    Humans make mistakes, but science is self correcting. The "agenda" is a hypothesis that gets tested experimentally. Right now my hypothesis is that teguixin is at least four specie. The genes (12s, 16s) from two have already been sequenced. They are about 4% different and living side by side -...
  7. neotropicalherps

    What IS THIS Tegu? Help :)

    Very interesting discussion that goes to the heart of human nature - people change or alter nature at all levels. Breeding tegus or gold fish is a relatively minor change compared to grinding up whole ecosystems. I was reading an article (Molecular phylogenetics and conservation of Tupinambis...
  8. neotropicalherps

    What IS THIS Tegu? Help :)

    Ok, so how do you know this? Obviously the lizard is b&w (as are most merianae), but what makes it "extreme" other than its size, which is not readily apparent from the photos. In other words what morphology other than size makes it an extreme?
  9. neotropicalherps

    What IS THIS Tegu? Help :)

    This is Salvator merianae, the current scientific name for all of the common names you listed. "Blue" is called such because males tend to be bluish and "Extreme" are exceptional in size. Thus Salvator merianae may or may not be a complex of cryptic species.
  10. neotropicalherps

    teguixin information and photos

    Above are photos of the two species. The bottom left could belong to either species, the photo came from the net. The others are mine. On the top left the two individuals are the same genetically, on the right the second photo from the top is genetically significantly different from the ones on...
  11. neotropicalherps

    teguixin information and photos

    Well if people don't study them then they would always stay the same and nothing would ever change. They are different species because that is how they evolved, people/science have just not previously recognized it. Once I publish on it they will be recognized species.
  12. neotropicalherps

    teguixin information and photos

    Yes, teguxin is in the pet trade (but it may not be common), but it is relative common in the field. In the wild females lay eggs in termite nests and they hatch when heavy rains soak the nests, thus they do, or may, have relatively long incubation periods that are flexible. Currently there are...
  13. neotropicalherps

    teguixin information and photos

    There are websites that claim to have captive bred teguixin. They are quite common, and in the pet trade so I would suspect multiple attempts to captive bred them. I would also be interested in knowing about failed attempts to captive bred them. In the above photo of museum specimens are two...
  14. neotropicalherps

    teguixin information and photos

    Good morning, I am interested in sorting out the species known as Tupinambis teguixin - sometimes called the golden tegu, sometimes called the black and white tegu. Has anyone bred these lizards? If so I would be very interesting in seeing photos of hatchlings and the parents. Does anyone have...
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