Your male may well be a greeri...can't tell for sure without better view of head. For those who think this is important, the best option is to get animals from reliable sources (Mexicana Group Directory: http://www.kingsnake.com/mexicana/). For additional photos of greeri, both captives and wild specimens, check out the sponsor link above (www.sierraherps.com) and follow the Photo Gallery link.

Cheers,

Bob
SierraHerps.com