Tank

Could you please tell me exactly what kind of ury this is? I just inherited two, males by the looks of them (large femoral pores under the back legs) and a small mali female. They've been kept together and seem to be well-fleshed and healthy. I don't know a ton about urys, so I don't know if I should keep them together or separate them. Anyway, I've never seen a ury with a black head before, and these two look identical to your Tank. So I was hoping you could help me a bit. Thanks in advance!!

He's a Uromastyx dispar maliensis (Mali uro). Most adult males have similar coloring when adult. Females are usually more tan. HOWEVER, both sexes can fool you from coloring and pores. Best to assume you have two males. Definitely separate them. You can go to these places for tons of care information.
http://www.kingsnake.com/uromastyx/index.html
http://www.deerfernfarms.com/Uromastyx_Care.htm