Reptile & Amphibian Forums

@ 4 mons baby geyri

n/p

Honestly, it's impossible to tell from those pictures...also even if I could hold that uro and take a look I might not even be able to tell.

Of course, anyone can make a guess...but any guess is a good guess when you've got a 50/50 chance right?
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Chris Vanderwees

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"Of course, anyone can make a guess...but any guess is a good guess when you've got a 50/50 chance right?"

Keep in mind that eternal asked for a 'best guess' not what is the sex of my uromastyx.

I can understand that you might have a problem guessing the sex of a Geryi even if you are holding it. It would be a much easier task if you owned a number of geryi and had years of experience of seeing and working with them. But keep in mind, others who have experience with working with geryi might be better at offering an educated 'guess' which is what eternal is requesting.

I understand that it is supposed to be a "guess" but clearly the game has no answer. My only concern is that the owner of this animal will interpret our "best guesses" as possible truth or at least place the idea in the back of his/her mind that maybe it's a female...because someone on a forum said it looked like one.

Even with years of experiance I don't think you could find a breeder who could look at the external differences of most uromastyx and come to a correct conclusion each time as to which sex a certain specimen is.

What is the absolute best way of finding out which sex any uromastyx is you may ask...put the unknown specimen with a proven male or female and watch the behavior and interactions.

Seeing as the specimen we are talking about in this thread is still very far away from adult hood, I would come to the conclusion that it is impossible to make a clear distinction as to which sex it may be and because of the size again it would not be an option to place it with a proven male or female adult.

Again my only concern is that the owner is looking for an actual answer as to what sex the animal is, and this is the way they hope to draw conclusions.

Just my opinion, I could be wrong.
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Chris Vanderwees

E-mail Me
1.2.0 Bearded Dragons
1.1.0 Crested Geckos
1.3.0 Veiled Chameleons
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and I believe the person is looking for guesses as this is what they requested.

I also believe that there are some breeders out there that certainly CAN look at some species of uromastyx at a fairly early age and determine sex. I know that I have personally purchased six younger uromastyx (4 geryi 2 ornates) and all were sexed with 100% accuracy at a young age by reputable breeders.

When I needed a red female geryi, I was able to distinguish between males and females at 7” and had no problem picking a female and helping someone else choose a male.

Do I believe that all breeders have the ability to determine the sex of all uromastyx at a young age or that this can be accomplished with all species of uromastyx at a young age- nope.

I do not agree that the ‘best’ way to find out the sex of a uromastyx is to place it with a proven male or female. I have seen females head bob to males, males bob to females, female to female aggression, male to male aggression, male to female aggression, and no interaction at all between males and females when not in breeding season and for certain species that do not go through brumation. Granted, if one would should wait long enough and eventually see copulation, it would be a way of determining sex but certainly not what I would consider the ‘best’ way.

As long as we are talking about guesses- If I were to take another ‘guess’…. I would say that eternal’s uro is probably around 7” (STL) and that we would be seeing more color on the belly area by now if it were male. This is a guess but again- exactly what eternal was requesting.

Eternal, was this a captive bred uro? If not, how did you determine the age? If it was captive bred, did the breeder indicate his/her thoughts on the sex?

You stated in your post that this was your opinion and you could be wrong. Although any of us can be wrong in our end conclusions, none of us can really be wrong with an opinion. An opinion is just that- an opinion. We just have two different opinions.

I'll agree with you there. An opinion is exaclty what you stated.

But on a side note...I find it very easy to distinguish malis apart in sex just by their behavior. Maybe this is not as easy with other species as my experiance may be limited but definitley if the male is seperated from females long enough copulation takes place almost instantly. (no cooling necessary.)

Here is my guess...Female.
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Chris Vanderwees

E-mail Me
1.2.0 Bearded Dragons
1.1.0 Crested Geckos
1.3.0 Veiled Chameleons
3.5.0 Corn Snakes
1.3.0 Tokay Geckos
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1.3.0 South Florida Kingsnakes
1.1.0 Albino Sonoran Gopher Snakes
1.5.0 Leopard Geckos
0.1.0 Green Iguanas
3.3.0 Mali Uromastyx

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(¯`·.¸¸.·´Kane`·.¸¸.·´¯)

or is that just too much for you?

.

is what i have as far as details

1) yes its a captive bred baby
2) the breeder stated that it was a little early to tell gender, so i did not get a definitive answer
3) he is about 5 1/2 " total
4) 3 1/2 months old
5) getting more defined lines on the chest in the last week

thank you for your time and help

Eternal,

It is quite early to tell then.

For me, it is easier to try and determine sex in young uromastyx when you have a group of individuals of similar size to compare. This is especially true for me when looking at and comparing hemipenal bulges.

Regarding chest lines...I have noticed that females will begin to get the lines on the chest just as males but I have found that the lines seem to be fewer, slower to establish, and less defined. Unfortunately, this will mean nothing to you unless you have something to compare it against.

Although females may get some coloring on the chest and tail, the males usually begin to noticeably color up in this area. This may not start to take place for a few more months.

Are you just curious to know whether you have a male or female or do you have a ‘need’ to know? As we are just throwing out guesses at this point based on a picture, there are more constructive ways to determine sex. If you actually need to know, email me.

Deb,

Thanks for all of your help in this matter. I was just curious
for im just trying to name him or her, and how one would
sex a uro @ this age. I just cannot pick it up and start looking for bulges just yet because it is still trying to acclimate and i dont think the stress is necessary.
I will throw up some updated pics in about a month and
will ask you again for your help if you dont mind.

thank you again for taking the time to help!
bst rgds,

F

you guys for taking the time to share your knowledge and expertise in this matter. The bottom line is that you both have a lot more experience in raising these animals than i .To know that you both took the time to help me understand this issue and thus i can pass on any help that i can offer in the future ,helps make this forum what it is. Thanks again

bst regards,