Male. The females tend to have more of the color dots going all down their mandible below their eye and the males usually just have a few if any running right below their eye. Yours appears to barely have any in this area. Definitely male.
Ok, here is a picture of the vent. These are the best pictures I could get. I know about the spangling on the cheeks way of sexing, but I wasnt sure about this guy. My avatar pic is of my 11" male, so that's why I wasnt sure about this guy. Thanks in advance for everyone's input!!