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How to determine the sexual of sub-adult tegu

Discussion in 'General Tegu Discussion' started by Riplee, Oct 25, 2011.

  1. Riplee

    Riplee Member 5 Year Member

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    You can know your sub-adult tegu sexual by your touch feeling.

    Here is the different. in the red cycle of male there is a little hard gibbose point, you can feel it and most of time you can see it.

    Picture of Male.
    [attachment=3474]

    Female has not that little part. Touch feeling very smooth.

    Picture of Female.
    [attachment=3475]

    This is an easy and certain way to determine your sub-adult tegus.

    Hope it is helpful.....

    Attached Files:

  2. frost

    frost Active Member 1,000+ Post Club

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    thanks for sharing, ill have to see if my b/w has that.
  3. numarix

    numarix New Member

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    For me it was alittle hard to tell the differences of those pictures.
  4. jondancer

    jondancer New Member

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    I think you can feel the difference not see it.
  5. TeguBuzz

    TeguBuzz Moderator 1,000+ Post Club

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    You feel something like a bead in males, and nothing is felt in females.
    Michael Graham likes this.
  6. dragonmetalhead

    dragonmetalhead Active Member 1,000+ Post Club

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    The femoral pores on the males feel, for lack of a better word, "fuzzy" to the touch. Kodo is the first male lizard I've had and the first time I felt them, I thought he had a bit of debris stuck in his cloaca and it still weirds me out a bit. Also, how the hell did you get those pics? Whenever I try to secure Kodo to check his underside, he thrashes like a madman and I usually get a tail slap to the face.
    Michael Graham likes this.
  7. Bubblz Calhoun

    Bubblz Calhoun Moderator 5 Year Member 1,000+ Post Club

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    Femoral Pores/glands are not the same as Spurs, males have both while females only have femoral pores. Femoral pores are the scent glands that line their thighs. You can see them on both pics that Riplee posted, it's a line of scales with tiny holes in the middle along the thighs. They run the length of the thigh on each side towards the bottom.

    On the female you can see a section of the femoral pores in the circle on the left. On the male if you look at the black spots at the bottom of both of his thighs the femoral pores run right through them.

    Spurs are found lower than femoral pores just under the cloaca on both sides on males.
    Hudson Valley likes this.
  8. Rhetoric

    Rhetoric Moderator Staff Member 5 Year Member 1,000+ Post Club

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    Neat I never noticed the pores. The spurs are like little zits or bb's. As they get older/larger you can see them on the males without having to really "look" for them. When my males are basking I can see them at the base of their tails. I was only able to see/feel one on Rango for a while. His second spur wasn't too noticeable until this last summer.
    Depending on the age of your tegu you won't be able to tell the sex. In argentines, they usually don't start to show spurs (if male) until they are closer to 18-24". I am not sure if it is the same for colombians since they tend to stay smaller then argentines.
  9. Miles Dad

    Miles Dad New Member

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    Still learning, is the red cycle the shed cycle?
  10. TatianaTegu

    TatianaTegu New Member

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  11. Bananasplit121

    Bananasplit121 New Member

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    Does the color of the belly have anything to do with the sex?
  12. chitodadon

    chitodadon Active Member 1,000+ Post Club

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    My 7 week old boy has them already

    Sent from my LG-P999 using Tapatalk 2
  13. Bubblz Calhoun

    Bubblz Calhoun Moderator 5 Year Member 1,000+ Post Club

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    Color of belly has nothing to do with sex.
    @ Chitodadon, post pics you may be confusing femoral pores with the spurs or buttons if it's 7wks old.
  14. chitodadon

    chitodadon Active Member 1,000+ Post Club

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    The Breeder I got.him.from.told.me he is a male

    Sent from my LG-P999 using Tapatalk 2
  15. chriswizz

    chriswizz Member 5 Year Member

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    Here's a couple of pics comparing male & female vents these are taken from blue tegus.
    1st pic is female & the second pic is the male.

    [​IMG]

    [​IMG]
    BaiYing509 and KABIKANO like this.
  16. TitusdaTegu

    TitusdaTegu Member

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    Thanks for the info I will check mine today,...might have to change his name lol!
    Michael Graham likes this.
  17. Roadkill

    Roadkill Active Member

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    chriswizz, those are excellent photos that can actually demonstrate what I've been trying to say to people about detecting sex in tegus for years. Everyone focuses on the "feel" of those scales, and while that is an accurate gauge, it is a feature that develops later in life. In other words, what we are all taught in school as a secondary sexual characteristic. What those points actually are is, internally, the location where ligaments attach to the integument that anchor muscles running from that point to the hemipenes (I think these are hemipenal retractor muscles, but I could be wrong). In neonates and juveniles, the hemipenes and those muscles aren't being used, so the integument is not being reinforced (and so we cannot feel these points). As they reach puberty, these points thicken, kind of like a callous, and therefore we can feel them. However, from the day of hatching, the hemipenes, the ligaments, the muscles, those are all there, the basic underlying structures are present. If you look closely at those points, one should notice that the scaling around those areas between males and females are distinctly different. I'm not talking about the "raised beads" or the colour pattern (or the fact that the internal cloacal scales of the female are not as everted as they are on the male in these photos, this is something that changes by volition in all tegus), but the area of the "beads" consists of larger scales surrounded by a "ring" of smaller/miniscule scales on the male, while the same area on the female is just larger scales. This orientation is present at hatching because the associated structures are present, and therefore someone with a keen eye to detail can actually sex the tegu as neonates and not have to wait for development OR pull out probes that are highly inaccurate in young animals anyhow. Going back to the school comment on secondary sexual characteristics, people are concentrated on looking for the tegu equivalent of a deepening voice and growth of facial hair, when the 'penis' has been in front of their face the whole time.
    BaiYing509 likes this.
  18. Renske

    Renske Active Member 5 Year Member

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    They have the beats from the day they are born. I can see them with all my offspring. I have now a nest of 28 red babies born 2 weeks a go. I have 17 females and 11 males. And i am 100% sure. People always told me you can not see it till they are 1 year old. But thats not true. Its very easy to see if you know how too look. Specialy if you have some brothers and sisters to compair it with.
  19. Renske

    Renske Active Member 5 Year Member

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    Here you see a picture of a 2 week old male red. You clearly see the bead.
    ImageUploadedByTapatalk1384513553.282887.jpg
  20. Renske

    Renske Active Member 5 Year Member

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    A video of how to sex a baby or adult tegu without probing: