Reptile & Amphibian Forums

I was comparing my uromastyx geyri hatchlings and noticed that some had the dark marbling pattern similar to what an adult male would have on their bellies and some didn't have any. I wondered if this could be an indication of male and female?

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1.1 U.maliensis
2.1 U.geyri
1.1 U ornatus
0.1 U. macfadyeni

Beats me, but I've got adult females with black/grey accents on their bellies like that and a sub-adult male that has an almost completely white belly. I wouldn't attempt to guarantee anything.
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2.3.0 uromastyx geyri (Saharan/Nigerian)
0.0.4 uromastyx hardwickii (Indian)
3.6.0 uromastyx macfadyeni (Somalian)
1.2.0 uromastyx ocellata (Sudanese)
1.3.0 uromastyx ornata (Ornate)
1.0.0 uromastyx benti pseudophilbyi

i have no idea but you cannot post such cute little guys without expecting some kind of comment they are precious!
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vonnie
***There is no pleasure in having nothing to do; the fun is in having lots to do and not doing it. Mary Wilson Little ***

Don't know for sure, but I know with many species, their coloration will change as they mature. As adult geryi, it's a safe bet that the ones with the marbling would be the males.
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2.1 - Rocky, Runako, and RoxyIII (my care sheets)