"he" sounds like a female 3-toed box turtle.. anyway you can post a pic?
luteolas(desert box) have a dark caramel-black carapace with yellow lines like an ornate, all the males I've seen have a high yellow head and deep red eyes, females tend to be more plain in skin color, but carapace color is the same
3 toeds can have 4 toes, males can have a plain yellow or slightly ivory colored carapace or an olive green carapace with light markings, skin color can vary from red to white with black, and deep red to light orange eyes
females have less coloration, usually a dark brown-dark ivory type colored carapace, with little to no markings on the carapace, some females have a little orange or yellow on their chins with no other markings
(if anyone sees something wrong here correct me.. please)