Both male and female Syrians can have skirts, however they're much more prevalent in the males. Chances are, if you don't notice male parts, then she's likely female. Males are very easy to distinguish when holding or looking at them from the side. After she's had time to settle in, before taming begins, flip her over to be sure
Here's a link to use as a guide
https://hamsterdiaries.files.wordpre...boyorgirl2.jpg