I guessing yours could be a undescribed species or a giant that just haven't fully develope. It doesn't look like the typical dwarf pyxies I have seen. About 2-3 yrs ago a online seller imported some giant pyxies that looked similar to yours.


Here's link to thread I just made with pictures of dwarf pyxies.
http://www.frogforum.net/african-bul...html#post24274